Press-fitting tooling for a rotating body plug, tooling assembly method, press-fitting method and application

Abstract

The present invention provides a press-fitting tooling for a rotating body plug, a tooling assembly method, a press-fitting method and an application, which do not need to be disassembled multiple times during the press-fitting process of the same workpiece to be press-fitted. The technical solution includes a tooling base, and a rotating seat for installing the workpiece to be pressed is arranged on the tooling base, and the rotating seat rotates relative to the tooling base; a plurality of pressing heads are arranged on the rotating seat, and the pressing heads are at least located in three different orientations of the rotating seat. Each pressing head is correspondingly provided with a pressing head shell sleeved on the pressing head, and each pressing head shell is correspondingly provided with a pressing head cover. A pressing head spring sleeved on the pressing head is arranged in the pressing head shell, one end of the pressing head spring abuts against the inner wall of the pressing head cover, and the other end is close to the pressing head cover.

Description

Technical Field

[0001] The present invention relates to a press-fitting tooling for a rotary plug, a tooling assembly method, a press-fitting method and an application, belonging to the field of hydraulic technology. Background Art

[0002] When press-fitting a plug, the product is usually placed in a positioning tooling. After clamping the product, a downward pressure is applied to the product. Currently, common ordinary press-fitting toolings for sealing plugs on the market are as Figure 1 shown, including a press head fixture 1 and guide rods 2 passing through the four vertices of the press head fixture 1. The area enclosed by the press head fixture 1 and the guide rods 2 is the workpiece to be pressed 3. A press head 4 is arranged between the top surface of the workpiece to be pressed 3 and the press head fixture 1. Taking the Figure 1 orientation in the appendix as a reference, during operation, the air cylinder presses the press head fixture 1, and the press head fixture drives the press head to move downward from top to bottom along with the guide rods to complete the press-fitting.

[0003] The above-mentioned ordinary press-fitting tooling for sealing plugs does not have a spring reset function. Taking the view orientation of the workpiece to be pressed in Figure 1 as an example, there is a hole to be pressed on the top surface of the workpiece to be pressed, and there are two holes to be pressed on the front surface of the workpiece to be pressed. If the hole to be pressed on the top surface is completed, and the two holes to be pressed on the front surface still need to be processed, then after pressing the hole to be pressed on the top surface, the press head needs to be manually reset, that is, the workpiece to be pressed is manually removed. As Figure 2 shown, the single-head press head for pressing the hole to be pressed on the top surface is replaced with a double-sided press head suitable for the two holes to be pressed on the front surface. At the same time, the workpiece to be pressed also needs to be rotated because the position of the press head remains fixed. Therefore, the surface where the hole to be pressed is located needs to be rotated to face the position of the press head. Therefore, if the press head used in the ordinary press-fitting tooling is used for workpieces with a large change in the number of holes to be pressed, during the press-fitting process, it is necessary to disassemble and adjust the press head and the position of the workpiece to be pressed, and the operation is cumbersome. Summary of the Invention

[0004] The present invention provides a press-fitting tooling for a rotary plug, which does not need to be disassembled multiple times during the process of press-fitting the same part to be press-fitted. The technical solution includes a tooling base, and a rotary seat for installing the workpiece to be pressed is arranged on the tooling base. The rotary seat rotates relative to the tooling base; several press heads are arranged on the rotary seat, and the force application directions of the press heads are at least in three different orientations of the rotary seat. Each press head corresponds to a press head shell. The press head shell is a hollow column, the press head penetrates through the press head shell and can reciprocate on the press head shell. A press head spring sleeved on the press head is arranged inside the press head shell. One end of the press head spring abuts against the inner wall of the press head shell, and the other end is fixed on the press head; alternatively, one end of the press head spring abuts against the inner wall of the press head shell, and the other end is fixed on a press head spring pad. The press head spring pad is located inside the press head shell and is fixedly connected to the press head.

[0005] Further, a press head spring pad is provided at the press head cover, and one end of the press head spring close to the press head cover abuts against the press head spring pad.

[0006] Further, the tooling base is a cube. Among the four edges of the rectangle where the bottom surface of the tooling base is located, at least three edges are each provided with a press head. The press head includes: an upper press head located at one edge of the tooling base; a lower press head located at the opposite edge of the tooling base from the upper press head; and a right press head located at any edge of the tooling base between the upper press head and the lower press head.

[0007] Further, an upper press head shell is sleeved on the upper press head. An upper press head cover is provided at the mouth of the upper press head shell. An upper press head spring pad attached to the upper press head cover is provided inside the upper press head shell. An upper press head spring coaxially sleeved on the upper press head is also provided inside the upper press head shell. One end of the upper press head spring close to the upper press head cover abuts against the upper press head spring pad.

[0008] Further, a lower press head shell is sleeved on the lower press head. A lower press head cover is provided at the mouth of the lower press head shell. A lower press head spring pad attached to the lower press head cover is provided inside the lower press head shell. A lower press head spring coaxially sleeved on the lower press head is also provided inside the lower press head shell. One end of the lower press head spring close to the lower press head cover abuts against the lower press head spring pad.

[0009] Further, the right press head includes two parallel rod bodies. An upper right press head shell and a lower right press head shell are respectively sleeved on the two rod bodies. Upper right press head covers and lower right press head covers are respectively provided at the mouths of the upper right press head shell and the lower right press head shell. Upper right press head spring pads and lower right press head spring pads attached to the upper right press head cover and the lower right press head cover are respectively provided inside the upper right press head shell and the lower right press head shell. Upper right press head springs and lower right press head springs coaxially sleeved on the right press head are also provided inside the upper right press head shell and the lower right press head shell. One ends of the upper right press head spring and the lower right press head spring close to the press head cover respectively abut against the upper right press head spring pad and the lower right press head spring pad.

[0010] Further, the central axes of the upper press head and the lower press head are parallel to each other and non - collinear.

[0011] Another object of the present invention is to provide an assembly method for a press-fitting tooling, which applies the press-fitting tooling for the sealing plug on the rotating body described in any one of the above. The method includes the following steps: Positioning: The positioning pin falls into the pin hole on the positioning spring washer, and the screw locks the positioning seat; the positioning pin is positioned and fixed in the upper positioning hole; Press-fitting: Press the upper press head spring washer, the upper right press head spring washer, the lower right press head spring washer, and the lower press head spring washer into the upper press head, the upper right press head, the lower right press head, and the lower press head respectively; then place the upper press head spring, the upper right press head spring, the lower right press head spring, and the lower press head spring into the upper press head housing, the right press head housing, and the lower press head housing respectively; install the press-fitted upper press head, upper right press head, lower right press head, and lower press head into the upper press head housing, the right press head housing, and the lower press head housing; install and lock the upper press head cover, the right press head cover, and the lower press head cover respectively.

[0012] Another object of the present invention is to provide a press-fitting method, which applies the press-fitting tooling described in any one of the above. The method includes the following steps: Rotate the rotating seat until the positioning pin aligns with the positioning hole on the adjacent surface; the press presses down any one of the press heads, and the press head presses into the press-fitting hole on one side of the workpiece to be pressed; the press lifts up, driving the press head to reset; pull up the positioning pin, and the positioning pin disengages from the corresponding positioning hole; rotate the rotating seat to adjust the surface where the press-fitting hole is located to face the press; the positioning pin resets until the positioning spring washer is close to the counterbore surface of the rotating seat, and at this time the positioning pin is embedded in the new positioning hole for limiting; the press presses down another press head and presses into the press-fitting hole again.

[0013] The press-fitting structure and method provided by the present invention can be applied in the technical field of hydraulic equipment.

[0014] The present invention has the following advantages:

[0015] 1. After each press head in the present invention presses the plug, it automatically resets through the spring and does not require manual operation; it is more convenient compared to the existing tooling that requires disassembly and adjustment of the press head; at the same time, the workpiece clamped by the tooling in the present invention does not need to be disassembled and reinstalled during the multi-face press-fitting process. Only by rotating the rotating seat, the rotating seat can be rotated and positioned without disassembling the workpiece to be pressed, and then another press-fitting surface can be freely switched; drive the workpiece to rotate to the pre-press-fitting state where the surface to be press-fitted faces the press head.

[0016] 2. The tooling provided in the present invention only needs to replace a press head, a press head cover, and a press head housing assembly at a certain part to modify the number of plugs that can be press-fitted; for example, since there can be one or at least two press heads on a press head cover, and a press head cover can be installed at a press-fitting position, then by changing the number of press heads corresponding to the press head cover at this press-fitting position, the purpose of press-fitting different numbers of holes can be achieved.

[0017] 3. Only by machining positioning holes at a certain part of the tooling base of the present invention can plugs be press-fitted into any angled surface.

[0018] 4. During the use of the present invention, especially during the process of press-fitting the same workpiece, it is not necessary to repeatedly disassemble and assemble the workpiece. It only needs to disassemble and assemble the workpiece to be pressed once after the plug heads on all surfaces are press-fitted, with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the conventional tooling in the background art;

[0020] Figure 2 is a schematic diagram of the double plug head press head structure that needs to be disassembled and replaced in the background art;

[0021] Figure 3 is the front view of the overall structure of the tooling in the present invention;

[0022] Figure 4 is Figure 3 the sectional view taken along line A-A in ;

[0023] Figure 5 is Figure 3 the sectional view taken along line B-B in ;

[0024] Figure 6 is Figure 7 the partial sectional view taken along line C-C in ;

[0025] Figure 7 is Figure 3 the sectional view taken along line D-D in ;

[0026] Figure 8 is Figure 7 the sectional view taken along line E-E in ;

[0027] Figure 9 is the front view of the sample to be pressed;

[0028] Figure 10 is Figure 7 the enlarged view of part A in ;

[0029] Figure 11 is Figure 6 the enlarged view of part B in ;

[0030] Figure 12 is Figure 6 the enlarged view of part C in ;

[0031] Figure 13 is Figure 6 the enlarged view of part D in .

[0032] In the figure, 1. upper punch; 2. upper punch cover; 3. upper punch housing; 4. upper punch spring washer; 5. upper punch spring; 6. positioning seat; 7. positioning pin; 8. positioning spring; 9. upper right punch; 10. right punch cover; 11. lower right punch; 12. right punch housing; 13. upper right punch spring; 14. lower right punch spring; 15. upper right punch spring washer; 16. lower right punch spring washer; 17. lower punch; 18. lower punch cover; 19. lower punch spring; 20. lower punch housing; 21. lower punch spring washer; 22. rotating seat; 23. rear rotating cover; 24. tooling base; 25. upper positioning hole; 26. right positioning hole; 27. lower positioning hole; 28. positioning spring washer; 29. workpiece to be pressed; 30. positioning seat screw; 31. pressed sealing plug Detailed implementation mode

[0033] Embodiment 1

[0034] A press-fitting tooling for a rotating body plug includes a cubic tooling base 24 with a central hole provided therein, and a rotating seat 22 is placed in the central hole. The rotating seat 22 consists of two coaxial cylinders with different diameters. A rear rotating cover 23 is provided at the end with a smaller diameter of the rotating seat 22. The diameter of the rear rotating cover 23 is between the diameters of both ends of the rotating seat 22. The rear rotating cover 23 and the rotating seat 22 are locked tightly by screws. The screws penetrate through the rear rotating cover 23 and the rotating seat 22, and the end of the screw is flush with the surface on the side of the rear rotating cover 23 away from the rotating seat 22. The end face flush with the tooling base 24 is fixedly connected to the tooling base 24; the other end face of the rotating seat 22 is used to carry the workpiece to be pressed.

[0035] A positioning spring washer 28 is provided at the end of the rotating seat 22 away from the rear rotating cover 23. A positioning pin 7 penetrates through the positioning spring washer 28, and a positioning spring 8 is also sleeved on the positioning pin 7. The positioning spring 8 and the positioning pin 7 are located in the pin holes on the positioning spring washer 28. The positioning seat 6 is locked tightly with screws. On the tooling base 24, an upper positioning hole 25 for accommodating the end of the positioning pin 7 is provided. The positioning pin 7 is first positioned and fixed in the upper positioning hole 25.

[0036] The upper punch housing 3, the right punch housing 12, and the lower punch housing 20 are installed at corresponding positions on the rotating seat 22, respectively located above, on the right side, and below the rotating seat 22. The upper punch housing 3 and the lower punch housing 20 are not coaxial, but their axes are parallel to each other.

[0037] Press the upper punch spring washer 4, upper right punch spring washer 15, lower right punch spring washer 16, and lower punch spring washer 21 onto the upper punch 1, upper right punch 9, lower right punch 11, and lower punch 17 respectively; place the upper punch spring 5, upper right punch spring 13, lower right punch spring 14, and lower punch spring 19 into the upper punch housing 3, right punch housing 12, and lower punch housing 20 respectively; install the assembled upper punch 1, upper right punch 9, lower right punch 11, and lower punch 17 into the upper punch housing 3, right punch housing 12, and lower punch housing 20; install and lock the upper punch cover, right punch cover, and lower punch cover respectively. Install the sample to be pressed onto the rotating seat and lock it.

[0038] In this embodiment, all the punch housings can adopt two structures: one is an open cylindrical shape with a punch cover, and the other is an integrally formed closed cylindrical shape.

[0039] Embodiment 2

[0040] An assembly method for a press-fitting tooling, which applies the press-fitting tooling for the upper seal plug on the rotating body in Embodiment 1, includes the following steps:

[0041] Positioning: The positioning pin 7 falls into the pin hole on the positioning spring 8 washer, and the screw locks the positioning seat 6; the positioning pin 7 is positioned and fixed in the upper positioning hole 25.

[0042] Press-fitting: Press the upper punch spring washer 4, upper right punch spring washer 15, lower right punch 11 spring washer, and lower punch spring washer 21 onto the upper punch 1, upper right punch 91, lower right punch 11, and lower punch 17; then place the upper punch spring 5, upper right punch spring 13, lower right punch spring 14, and lower punch spring 19 into the upper punch housing 3, right punch housing 12, and lower punch housing 20 respectively; install the assembled upper punch 1, upper right punch 9, lower right punch 11, and lower punch 17 into the upper punch housing 3, right punch housing 12, and lower punch housing 20; install and lock the upper punch cover 2, right punch cover 10, and lower punch cover 18 respectively.

[0043] Embodiment 3

[0044] A press-fitting method for press-fitting a workpiece with holes.

[0045] The press-fitting process is as follows:

[0046] Place the entire tooling under the press. Since the positioning pin 7 has been positioned, the press presses down the upper punch 1, and the upper punch 1 presses the seal plug into the hole on the sample to be pressed 29. After the press-fitting is completed, the press lifts up. At this time, the upper punch spring 5 is in a compressed state, and the upper punch 1 returns under the action of the upper punch spring 5 until the upper punch 1 completes the return when the upper punch spring washer 4 is close to the upper punch cover 2, completing the press-fitting work of the upper punch.

[0047] The process of rotating the rotating base and press-fitting the hole on the right side of the front view of the sample to be pressed is as follows:

[0048] Pull up the positioning pin 7. The positioning pin 7 disengages from the upper positioning hole 25. Rotate the rotating base 22 counterclockwise until the positioning pin 7 aligns with the right positioning hole 26. Release the positioning pin 7. The positioning pin 7 resets under the action of the positioning spring 8 until the positioning spring washer 28 abuts against the counterbore surface of the rotating base 22. At this time, the positioning pin 7 is inserted into and fixed in the right positioning hole 26. At this moment, the upper right press head 9 and the lower right press head 11 face upward.

[0049] Place the entire tooling under the press. The press presses down the upper right press head 9 and the lower right press head 11, and the sealing plug is pressed into the hole of the sample 29 to be pressed. After the pressing is completed, the press lifts up. At this time, the upper right press head spring 13 and the lower right press head spring 14 are in a compressed state. The upper right press head 9 and the lower right press head 11 reset under the action of the upper right press head spring 13 and the lower right press head spring 14 until the upper right press head spring washer 15 and the lower right press head spring washer 16 abut against the right press head cover 10, and the reset of the upper right press head 9 and the lower right press head 11 is completed, thus completing the press-fitting work of the right press head.

[0050] The process of rotating the rotating base and press-fitting the hole in the lower middle part of the front view of the sample to be pressed is as follows:

[0051] Pull up the positioning pin 7. The positioning pin 7 disengages from the right positioning hole 26. Rotate the rotating base 22 counterclockwise until the positioning pin 7 aligns with the lower positioning hole 27. Release the positioning pin 7. The positioning pin 7 resets under the action of the positioning spring 8 until the positioning spring washer 28 abuts against the counterbore surface of the rotating base 22. At this time, the lower press head 17 faces upward.

[0052] Place the entire tooling under the press. The press presses down the lower press head 17, and the sealing plug is pressed into the hole of the sample 29 to be pressed. After the pressing is completed, the press lifts up. At this time, the lower press head spring 19 is in a compressed state. The lower press head 17 resets under the action of the lower press head spring 19 until the lower press head spring washer 21 abuts against the lower press head cover 18 and the reset is completed, thus completing the press-fitting work of the lower press head.

[0053] After the sealing plugs on the three surfaces are press-fitted, remove the sample 29 to be pressed.

[0054] Embodiment 4

[0055] A press-fitting tooling for a rotating body plug is applied in the field of hydraulic equipment, for example, applied to hydraulic presses and hydraulic fixtures.

[0056] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with this technology can make various modifications and decorations without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.

Claims

1. A press-fitting tooling for a rotating body plug, comprising a tooling base, characterized in that, A rotating seat for installing a workpiece to be pressed is provided on the tooling base, and the rotating seat rotates relative to the tooling base; a plurality of pressing heads are provided on the rotating seat, and the force application directions of the pressing heads are at least located in three different orientations of the rotating seat. Each pressing head corresponds to a pressing head shell. The pressing head shell is a hollow column, and the pressing head penetrates through the pressing head shell and can reciprocate on the pressing head shell. A pressing head spring sleeved on the pressing head is arranged inside the pressing head shell. One end of the pressing head spring abuts against the inner wall of the pressing head shell, and the other end is fixed on the pressing head; Alternatively, one end of the pressing head spring abuts against the inner wall of the pressing head shell, and the other end is fixed on a pressing head spring pad. The pressing head spring pad is located inside the pressing head shell and is fixedly connected to the pressing head; A rotating rear cover is provided at the smaller-diameter end of the rotating seat. The diameter of the rotating rear cover is between the diameters of the two ends of the rotating seat, and the rotating rear cover and the rotating seat are locked tightly by screws.

2. The press-fitting tooling for the rotating body plug according to claim 1, characterized in that, A pressing head spring pad is provided at the pressing head cover, and one end of the pressing head spring close to the pressing head cover abuts against the pressing head spring pad.

3. The press-fitting tooling for the rotating body plug according to claim 2, characterized in that, The tooling base is a cube. Among the four edges of the rectangle where the bottom surface of the tooling base is located, at least three edges are each provided with a pressing head. The pressing head includes: An upper pressing head, located at one edge of the tooling base; A lower pressing head, located at the opposite edge of the tooling base from the upper pressing head; A right pressing head, located at any one of the edges of the tooling base between the upper pressing head and the lower pressing head.

4. The press-fitting tooling for the rotating body plug according to claim 3, characterized in that An upper pressing head shell is penetrated through the upper pressing head. An upper pressing head cover is provided at the mouth of the upper pressing head shell. An upper pressing head spring pad attached to the upper pressing head cover is arranged inside the upper pressing head shell. An upper pressing head spring coaxially penetrated through the upper pressing head is also arranged inside the upper pressing head shell. One end of the upper pressing head spring close to the upper pressing head cover abuts against the upper pressing head spring pad.

5. The press-fitting tooling for the rotating body plug according to claim 4, characterized in that A lower pressing head shell is penetrated through the lower pressing head. A lower pressing head cover is provided at the mouth of the lower pressing head shell. A lower pressing head spring pad attached to the lower pressing head cover is arranged inside the lower pressing head shell. A lower pressing head spring coaxially penetrated through the lower pressing head is also arranged inside the lower pressing head shell. One end of the lower pressing head spring close to the lower pressing head cover abuts against the lower pressing head spring pad.

6. The press-fitting tooling for the rotating body plug according to claim 5, characterized in that, The right pressing head includes two parallel rod bodies. An upper right pressing head shell and a lower right pressing head shell are respectively penetrated through the two rod bodies. Upper right pressing head covers and lower right pressing head covers are respectively provided at the mouths of the upper right pressing head shell and the lower right pressing head shell. Upper right pressing head spring pads and lower right pressing head spring pads attached to the upper right pressing head covers and the lower right pressing head covers are respectively arranged inside the upper right pressing head shell and the lower right pressing head shell. Upper right pressing head springs and lower right pressing head springs coaxially penetrated through the right pressing head are also arranged inside the upper right pressing head shell and the lower right pressing head shell. One ends of the upper right pressing head spring and the lower right pressing head spring close to the pressing head cover respectively abut against the upper right pressing head spring pad and the lower right pressing head spring pad.

7. The press-fitting tooling for the rotary plug according to claim 6, characterized in that The central axes of the upper pressing head and the lower pressing head are parallel to each other and not collinear.

8. An assembly method of a press-fitting tooling, characterized in that, The pressing tool for the rotating body plug head applying any one of the above-mentioned claims 1-7 includes the following steps: Positioning: The positioning pin falls into the pin hole on the positioning spring pad, and the positioning seat is locked tightly by screws; the positioning pin is positioned and fixed in the upper positioning hole; Press fitting: Press the upper punch spring washer, upper right punch spring washer, lower right punch spring washer, and lower punch spring washer onto the upper punch, upper right punch, lower right punch, and lower punch respectively; then place the upper punch spring, upper right punch spring, lower right punch spring, and lower punch spring into the upper punch housing, right punch housing, and lower punch housing respectively; install the press-fitted upper punch, upper right punch, lower right punch, and lower punch into the upper punch housing, right punch housing, and lower punch housing; install and lock the upper punch cover, right punch cover, and lower punch cover respectively.

9. A press-fitting method, characterized in that, Applying the press-fitting tooling according to any one of claims 1-7 above, includes the following steps: Rotate the rotating base until the positioning pin aligns with the positioning hole on the adjacent surface; the press presses down any one punch, and the punch presses into the hole to be pressed on one side of the workpiece to be pressed; the press lifts up, driving the punch to reset; pull up the positioning pin, and the positioning pin disengages from its corresponding positioning hole; rotate the rotating base to adjust the surface where the hole to be pressed is located to face the press; the positioning pin resets until the positioning spring washer is close to the counterbore surface of the rotating base, at this time the positioning pin is embedded in the new positioning hole for positioning; the press presses down another punch and presses it into the hole to be pressed again.

10. Application of a press-fitting tooling according to any one of claims 1-7 in the field of hydraulic equipment.

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