Press fitting three-pin positioning device

Abstract

The utility model discloses a press-fitting three-pin positioning device, which relates to the technical field of three-pin positioning and comprises a transparent plate and a first slider, a press-fitting hole is arranged in the middle of the transparent plate, four corners of the lower surface of the transparent plate are fixedly connected with supporting legs, the outer side surfaces of the lower ends of the supporting legs are fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the first slider. And a fixing hole is formed in the middle of the fixing plate. By arranging the measuring cylinder, whether the press-fitting pressure on the positioning pin is too large or not can be judged, the situation that the positioning pin is damaged due to the too large pressure in the press-fitting process is avoided, the measured press-fitting pressure can be changed according to different positioning pins by arranging the clamping groove and the clamping nail, and the buzzer is arranged, so that the press-fitting effect is improved. According to the positioning pin press-fitting device, an alarm can be given when the press-fitting pressure of the positioning pin is too large, a worker is reminded of faults, the positioning pin can be moved circumferentially for different positioning devices through arrangement of teeth and clamping teeth, and the positioning pin can be moved in the radial direction through arrangement of a second sliding groove and a first sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of three-pin positioning, in particular to a press-fit three-pin positioning device. Background Art

[0002] In mechanical processing and manufacturing, the positioning datum of the workpiece processing should be determined in advance to ensure the processing accuracy of the parts. In the process of mechanical processing and manufacturing, irregular shapes of workpieces are often encountered. At this time, using one or two locating pins will cause instability of the workpiece during processing. At this time, a three-pin positioning method will be used to form a triangular structure to ensure the stability of the workpiece during processing, to ensure the stability of the positioning datum, to ensure that the positioning datum will not change, and to ensure the processing accuracy of the workpiece.

[0003] The positioning pin press-fitting device disclosed in the Chinese utility model patent application disclosure CN216633288U, although the utility model can realize the rapid supply of positioning pins and greatly improve the positioning pin press-fitting efficiency, but the utility model cannot measure the press-fitting pressure during the press-fitting of the positioning pins. When the press-fitting pressure is too large, the positioning pins will be damaged and the press-fitting quality will be affected. Therefore, there is a problem that the press-fitting pressure cannot be measured. In addition, when press-fitting the positioning pins, the utility model uses a three-pin positioning method to press-fit three positioning pins at the same time. However, when facing different positioning devices, the positioning ports of the three-pin positioning are also different, and different positioning devices cannot be press-fitted, which affects the practicability of the device. Therefore, there is a problem that different positioning devices cannot be press-fitted. In summary, the utility model has the problems of being unable to measure the press-fitting pressure and being unable to press-fit different positioning devices. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a press-fit three-pin positioning device, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: comprising a transparent plate and a first sliding block, the transparent plate is provided with a press-fitting hole in the middle, the four lower corners of the transparent plate are fixedly connected with supporting legs, the lower outer side surfaces of the supporting legs are fixedly connected with a fixing plate, the fixing plate is provided with a fixing hole in the middle, the upper four corners of the transparent plate are fixedly connected with supporting rods, the other end of the supporting rods is fixedly connected with a top plate, the upper middle of the top plate is fixedly connected with an electric hydraulic cylinder, the lower outer side surface of the electric hydraulic cylinder is movably connected with the top plate, the lower outer side surface of the electric hydraulic cylinder is fixedly connected with a pressing plate, and the right rear part of the top plate is fixedly connected with an oil tank;

[0008] A measuring cylinder is fixedly connected to the bottom of the first slider, a pressure block is movably connected to the bottom surface of the inner wall of the measuring cylinder, a first spring is fixedly connected to the top of the pressure block, the other end of the first spring is fixedly connected to the measuring cylinder, a connecting rod is fixedly connected to the middle of the top of the pressure block, a magnetic rod is fixedly connected to the middle of the bottom of the pressure block, a positioning pin is fixedly connected to the bottom of the magnetic rod, and a buzzer is fixedly connected to the left front part of the top of the top plate;

[0009] The outer periphery of the lower side of the pressure plate is fixedly connected with a first slide groove, the inner side surface of the first slide groove is slidably connected with a first slider, the inner side surface of the second slider is fixedly connected with a rotating rod, a second slide groove is opened at the lower part of the rotating rod, the inner side surface of the second slide groove is slidably connected with the first slider, a fixed shaft is fixedly connected to the middle of the lower side of the electric hydraulic cylinder, the outer side surface of the fixed shaft is fixedly connected with teeth, the outer side of the teeth is movably connected with a swivel, the outer side surface of the swivel is fixedly connected with the rotating rod, the lower side of the fixed shaft is fixedly connected with a fixed seat, and the upper side of the fixed seat is movably connected with a swivel.

[0010] Optionally, a staple is movably connected to the outer side surface of the measuring cylinder, a slot is provided on the inner side surface of the measuring cylinder, and a staple is movably connected to the inner side surface of the slot.

[0011] Optionally, the buzzer is connected in series with a wire for the staple, the connecting rod is connected in series with a wire for the power supply, and the buzzer is connected in series with a wire for the power supply.

[0012] Optionally, the outer end of the rotating rod is movably connected to a first sliding groove, and the upper surface of the rotating rod is movably connected to a pressing plate.

[0013] Optionally, a bolt is movably connected to one side of the rotating rod, a nut is threadedly connected to the outer side of the other end of the bolt, and a first sliding block is movably connected to the outer side of the bolt.

[0014] Optionally, the side of the tooth is movably connected with a latch tooth, the other side of the latch tooth is movably connected with a second spring, the other end of the second spring is fixedly connected with a rotating rod, the left portion of the latch tooth is movably connected with an electric hydraulic cylinder, the left portion of the latch tooth is movably connected with a swivel, the right portion of the latch tooth is movably connected with a pressure plate, and the right portion of the latch tooth is movably connected with a rotating rod.

[0015] (III) Beneficial effects

[0016] The utility model provides a press-fit three-pin positioning device, which has the following beneficial effects:

[0017] 1. The press-fit three-pin positioning device can determine whether the press-fitting pressure on the positioning pin is too large by setting a measuring cylinder, so as to avoid damage to the positioning pin due to excessive pressure during the press-fitting process. By setting a card slot and a card nail, the measured press-fitting pressure can be changed according to different positioning pins. By setting a buzzer, an alarm can be sounded when the press-fitting pressure on the positioning pin is too large to remind workers of a fault.

[0018] 2. The press-fit three-pin positioning device can move the positioning pin in a circumferential position when targeting different positioning devices by providing teeth and latch teeth, and can move the positioning pin in a radial position by providing a second slide groove and a first slide block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the swivel in a top view of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the bolt of the utility model from the left side;

[0023] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 6 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0025] In the figure: 1. electric hydraulic cylinder; 2. oil tank; 3. pressure plate; 4. support rod; 5. measuring tube; 6. support leg; 7. fixing hole; 8. fixing plate; 9. transparent plate; 10. press-fit hole; 11. slot; 12. first slide slot; 13. buzzer; 14. top plate; 15. first spring; 16. fixing seat; 17. rotating rod; 18. second slide slot; 19. first slide block; 20. nut; 21. bolt; 22. teeth; 23. swivel; 24. teeth; 25. second spring; 26. fixed axis; 27. second slide block; 28. staple; 29. ​​connecting rod; 30. pressure block; 31. magnetic rod; 32. positioning pin. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] See also Figures 1 to 6 The utility model provides a technical solution: a press-fit three-pin positioning device, comprising a transparent plate 9 and a first slider 19, a press-fit hole 10 is opened in the middle of the transparent plate 9, the four corners below the transparent plate 9 are fixedly connected with support legs 6, the lower outer side surface of the support leg 6 is fixedly connected with a fixing plate 8, a fixing hole 7 is opened in the middle of the fixing plate 8, the four corners above the transparent plate 9 are fixedly connected with support rods 4, the other end of the support rod 4 is fixedly connected with a top plate 14, the middle of the top of the top plate 14 is fixedly connected with an electric hydraulic cylinder 1, the lower outer side surface of the electric hydraulic cylinder 1 is movably connected with the top plate 14, the lower outer side surface of the electric hydraulic cylinder 1 is fixedly connected with a press plate 3, and the right rear of the top plate 14 is fixedly connected with an oil tank 2;

[0029] The first slider 19 is fixedly connected to the measuring cylinder 5 below, and the outer side of the measuring cylinder 5 is movably connected to the nail 28, the inner side of the measuring cylinder 5 is provided with a slot 11, and the inner side of the slot 11 is movably connected to the nail 28, and the inner wall bottom of the measuring cylinder 5 is movably connected to a pressure block 30, and the first spring 15 is fixedly connected to the top of the pressure block 30, and the other end of the first spring 15 is fixedly connected to the measuring cylinder 5, and the middle of the top of the pressure block 30 is fixedly connected to the connecting rod 29, and the middle of the bottom of the pressure block 30 is fixedly connected to the magnetic rod 31, and the bottom of the magnetic rod 31 is fixedly connected to the positioning pin 32, and the top of the top plate 14 A buzzer 13 is fixedly connected to the left front part, the buzzer 13 and the staple 28 are connected in series with a wire, the connecting rod 29 is connected in series with the power supply wire, and the buzzer 13 is connected in series with the power supply wire. By setting the measuring tube 5, it can be determined whether the press-fitting pressure on the locating pin 32 is too large, so as to avoid damage to the locating pin 32 due to excessive pressure during the press-fitting process. By setting the card slot 11 and the staple 28, the measured press-fitting pressure can be changed according to different locating pins 32. By setting the buzzer 13, an alarm can be issued when the press-fitting pressure on the locating pin 32 is too large, reminding the worker that a fault has occurred.

[0030] When in use, first determine the pressure of the locating pin 32 pressed on the locating device, take out the staple 28, and engage it with the slot 11 at the corresponding position. The staple 28 clamps the number of turns of the first spring 15. The more turns, the smaller the elasticity, and the fewer turns, the greater the elasticity. Start the electric hydraulic cylinder 1, and the electric hydraulic cylinder 1 drives the pressure plate 3 to move downward, and then drives the measuring tube 5 to move downward, so that the locating pin 32 presses the locating device. At this time, the locating pin 32 is subjected to force, and the pressure block 30 will move upward through the magnetic rod 31. The first spring 15 is continuously compressed, and the pressing pressure of the locating pin 32 becomes larger and larger. When the connecting rod 29 touches the staple 28, the buzzer 13 makes a sound, proving that the pressing pressure on the locating pin 32 is too large.

[0031] Example 2

[0032] See also Figures 1 to 6 The utility model provides a technical solution: a press-fit three-pin positioning device, comprising a transparent plate 9 and a first slider 19, a press-fit hole 10 is opened in the middle of the transparent plate 9, the four corners below the transparent plate 9 are fixedly connected with support legs 6, the lower outer side surface of the support leg 6 is fixedly connected with a fixing plate 8, a fixing hole 7 is opened in the middle of the fixing plate 8, the four corners above the transparent plate 9 are fixedly connected with support rods 4, the other end of the support rod 4 is fixedly connected with a top plate 14, the middle of the top of the top plate 14 is fixedly connected with an electric hydraulic cylinder 1, the lower outer side surface of the electric hydraulic cylinder 1 is movably connected with the top plate 14, the lower outer side surface of the electric hydraulic cylinder 1 is fixedly connected with a press plate 3, and the right rear of the top plate 14 is fixedly connected with an oil tank 2;

[0033] The outer periphery of the lower side of the pressure plate 3 is fixedly connected with the first slide groove 12, the inner side surface of the first slide groove 12 is slidably connected with the first slider 19, the inner side surface of the second slider 27 is fixedly connected with the rotating rod 17, the outer end of the rotating rod 17 is movably connected with the first slide groove 12, the upper side of the rotating rod 17 is movably connected with the pressure plate 3, the lower part of the rotating rod 17 is provided with a second slide groove 18, the inner side surface of the second slide groove 18 is slidably connected with the first slider 19, one side of the rotating rod 17 is movably connected with a bolt 21, the outer side surface of the other end of the bolt 21 is threadedly connected with a nut 20, the outer side surface of the bolt 21 is movably connected with the first slider 19, the middle of the lower side of the electric hydraulic cylinder 1 is fixedly connected with a fixed shaft 26, the outer side surface of the fixed shaft 26 is fixedly connected with teeth 22, the outer side of the teeth 22 is movably connected with a swivel 23, the outer side of the swivel 23 A rotating rod 17 is fixedly connected to the side surface, a latch tooth 24 is movably connected to the side surface of the tooth 22, a second spring 25 is movably connected to the other side surface of the tooth 24, and the other end of the second spring 25 is fixedly connected to the rotating rod 17, an electric hydraulic cylinder 1 is movably connected to the upper left portion of the tooth 24, a swivel 23 is movably connected to the lower left portion of the tooth 24, a pressure plate 3 is movably connected to the upper right portion of the tooth 24, and a rotating rod 17 is movably connected to the lower right portion of the tooth 24, a fixed seat 16 is fixedly connected to the lower side of the fixed shaft 26, and a swivel 23 is movably connected to the upper side of the fixed seat 16. By arranging the tooth 22 and the latch tooth 24, the circumferential position of the positioning pin 32 can be moved for different positioning devices, and the radial position of the positioning pin 32 can be moved by arranging the second slide groove 18 and the first slider 19.

[0034] When in use, when facing different positioning devices, first determine the position of the positioning hole on the positioning device, rotate the rotating rod 17, and use the relationship between the teeth 22 and the latch teeth 24 to move the latch teeth 24 outward to compress the second spring 25, and then use the second spring 25 to push the latch teeth 24 into the teeth 22. Repeat this movement until the rotating rod 17 is turned to the appropriate position, then rotate the nut 20, loosen the threaded connection between the nut 20 and the bolt 21, remove the nut 20 and the bolt 21, move the first slider 19 to make the positioning pin 32 in the appropriate position, then insert the positioning pin 32, and tighten the threaded connection between the nut 20 and the bolt 21.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A press-fit three-pin positioning device, comprising a transparent plate (9), a second slider (27) and a first slider (19), characterized in that: A press-fitting hole (10) is provided in the middle of the transparent plate (9); the four lower corners of the transparent plate (9) are fixedly connected to support legs (6); the lower outer side surfaces of the support legs (6) are fixedly connected to a fixing plate (8); a fixing hole (7) is provided in the middle of the fixing plate (8); the four upper corners of the transparent plate (9) are fixedly connected to support rods (4); the other end of the support rod (4) is fixedly connected to a top plate (14); the upper middle of the top plate (14) is fixedly connected to an electric hydraulic cylinder (1); the lower outer side surface of the electric hydraulic cylinder (1) is movably connected to the top plate (14); the lower outer side surface of the electric hydraulic cylinder (1) is fixedly connected to a pressing plate (3); and the right rear of the top plate (14) is fixedly connected to an oil tank (2); A measuring cylinder (5) is fixedly connected to the bottom of the first sliding block (19), a pressure block (30) is movably connected to the bottom surface of the inner wall of the measuring cylinder (5), a first spring (15) is fixedly connected to the top of the pressure block (30), the other end of the first spring (15) is fixedly connected to the measuring cylinder (5), a connecting rod (29) is fixedly connected to the middle of the top of the pressure block (30), a magnetic rod (31) is fixedly connected to the middle of the bottom of the pressure block (30), a positioning pin (32) is fixedly connected to the bottom of the magnetic rod (31), and a buzzer (13) is fixedly connected to the left front part of the top of the top plate (14); The outer periphery of the lower side of the pressure plate (3) is fixedly connected with a first slide groove (12), the inner side surface of the first slide groove (12) is slidably connected with a first slider (19), the inner side surface of the second slider (27) is fixedly connected with a rotating rod (17), the lower part of the rotating rod (17) is provided with a second slide groove (18), the inner side surface of the second slide groove (18) is slidably connected with the first slider (19), the middle of the lower side of the electric hydraulic cylinder (1) is fixedly connected with a fixed shaft (26), the outer side surface of the fixed shaft (26) is fixedly connected with teeth (22), the outer side of the teeth (22) is movably connected with a swivel (23), the outer side surface of the swivel (23) is fixedly connected with the rotating rod (17), the lower side of the fixed shaft (26) is fixedly connected with a fixed seat (16), and the upper side of the fixed seat (16) is movably connected with a swivel (23).

2. A press-fit three-pin positioning device according to claim 1, characterized in that: The outer side surface of the measuring cylinder (5) is movably connected with a clamping nail (28), the inner side surface of the measuring cylinder (5) is provided with a clamping groove (11), and the inner side surface of the clamping groove (11) is movably connected with a clamping nail (28).

3. A press-fit three-pin positioning device according to claim 1, characterized in that: The buzzer (13) and the staple (28) are connected in series with a wire, the connecting rod (29) and the power supply wire are connected in series, and the buzzer (13) and the power supply wire are connected in series.

4. A press-fit three-pin positioning device according to claim 1, characterized in that: The outer end of the rotating rod (17) is movably connected to a first sliding groove (12), and the upper surface of the rotating rod (17) is movably connected to a pressing plate (3).

5. A press-fit three-pin positioning device according to claim 1, characterized in that: A bolt (21) is movably connected to one side of the rotating rod (17), a nut (20) is threadedly connected to the outer side of the other end of the bolt (21), and a first sliding block (19) is movably connected to the outer side of the bolt (21).

6. A press-fit three-pin positioning device according to claim 1, characterized in that: The side surface of the tooth (22) is movably connected to a latching tooth (24), the other side surface of the latching tooth (24) is movably connected to a second spring (25), the other end of the second spring (25) is fixedly connected to a rotating rod (17), the upper left portion of the latching tooth (24) is movably connected to an electric hydraulic cylinder (1), the lower left portion of the latching tooth (24) is movably connected to a swivel (23), the upper right portion of the latching tooth (24) is movably connected to a pressure plate (3), and the lower right portion of the latching tooth (24) is movably connected to the rotating rod (17).

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