Guide sleeve pulling-out device and using method thereof

Abstract

The invention relates to the technical field of vehicles, and discloses a guide sleeve pulling-out device which comprises a longitudinal pulling rod capable of penetrating through a guide sleeve, a transverse rotating rod perpendicular to the pulling rod is fixed to the top end of the pulling rod, a first thread is arranged on the upper portion of the pulling rod, a second thread is arranged on the lower portion of the pulling rod, and the first thread and the second thread are opposite in direction. The upper portion of the pulling rod is sleeved with a hollow sleeve with an opening in the lower portion, the upper surface of the sleeve is provided with a first through hole allowing the pulling rod to penetrate through, the first through hole is provided with through hole internal threads matched with the first threads, the lower portion of the pulling rod is sleeved with a bottom supporting cushion block and a fixing nut, and the fixing nut is located below the bottom supporting cushion block. And the fixing nut is provided with a nut internal thread matched with the second thread. The invention further discloses a using method of the guide sleeve pulling-out device. According to the guide sleeve pulling-out device and the using method thereof, the guide sleeve can be pulled out rapidly in a lossless mode, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of mold assembly tools, and in particular to a guide sleeve extraction device and a use method thereof. Background Art

[0002] In general stamping dies, the upper and lower base plates use guide pins and guide sleeves as guides. In rare cases, there may be problems such as processing errors and deformation of the upper and lower base plates, which may cause the guide pins and guide sleeves to be out of center. At this time, it is necessary to pull out the guide pins and re-insert the guide sleeve installation holes. The outer diameter tolerance of the guide sleeve is H7, and it is an interference fit with the base plate. The original guide sleeve extraction method is to use the through hole reserved in the mold base plate. When implementing it, it is necessary to flip the mold base plate, place a pad under the guide sleeve, pass through the base plate through the hole, and use a heavy object to knock the pad to make the guide sleeve fall out of the installation socket. There is a risk of damaging the guide sleeve in this operation mode, and the heavy object knocking operation has a safety hazard. Summary of the invention

[0003] The purpose of the present invention is to provide a guide sleeve extraction device and a use method thereof to address the deficiencies of the above-mentioned technology, which can quickly and non-destructively extract the guide sleeve and eliminate safety hazards.

[0004] To achieve the above-mentioned purpose, the guide sleeve extraction device involved in the present invention includes a longitudinal extraction rod that can pass through the guide sleeve, a transverse rotating rod perpendicular to the extraction rod is fixed to the top end of the extraction rod, a first thread is provided on the upper part of the extraction rod, and a second thread is provided on the lower part, the first thread and the second thread are opposite, the upper part of the extraction rod is sleeved with a hollow sleeve with an opening at the bottom, the upper surface of the sleeve is provided with a first through hole for the extraction rod to pass through, the first through hole is provided with a through hole internal thread matching the first thread, the lower part of the extraction rod is sleeved with a bottom support block and a fixing nut, the fixing nut is located below the bottom support block, and the fixing nut is provided with a nut internal thread matching the second thread.

[0005] Preferably, a plurality of longitudinal avoidance holes are opened on the side wall of the sleeve, and the avoidance holes extend upward from the lower surface of the sleeve to avoid the guide sleeve screws.

[0006] Preferably, the connection point between the rotating rod and the pulling rod is located at the center of the rotating rod.

[0007] Preferably, a second through hole for the pull rod to pass through is provided at the center of the bottom supporting pad, and the inner diameter of the second through hole is larger than the diameter of the pull rod.

[0008] Preferably, the outer diameter of the bottom support block is smaller than the outer diameter of the guide sleeve, and larger than the inner diameter of the guide sleeve.

[0009] Preferably, the outer side surface of the fixing nut is provided with two opposite vertical surfaces for easy screwing in.

[0010] A method for using the guide sleeve extraction device comprises the following steps:

[0011] A) placing the sleeve on the first thread of the pull rod, and then inserting the pull rod into the guide sleeve;

[0012] B) placing the bottom support block on the pull rod from the bottom, and then screwing the fixing nut on the second thread of the pull rod from the bottom;

[0013] C) rotating the rotating rod to rotate the pulling rod, driving the bottom supporting block and the fixing nut to move upward until the bottom supporting block contacts the bottom surface of the guide sleeve;

[0014] D) Continue to increase the force to rotate the rotating rod, so that the fixing nut continues to rise, and through the constraint between the bottom support block and the bottom surface of the guide sleeve, the fixing nut is locked with the pull rod, and the bottom support block generates an upward pushing force on the guide sleeve;

[0015] E) the force exerted by the twisting of the rotating rod is transmitted to the bottom support block through the thread, until the pushing force of the bottom support block is greater than the restraining force of the interference fit between the guide sleeve and the guide sleeve mounting hole, and the guide sleeve starts to move upward;

[0016] F) Continue to rotate the rotating rod until the guide sleeve moves up and out of the guide sleeve mounting hole.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The guide sleeve can be pulled out quickly and without damage;

[0019] 2. Save manpower;

[0020] 3. Eliminate potential safety hazards;

[0021] 4. Simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the guide sleeve extraction device of the present invention;

[0023] Figure 2 It is a structural cross-sectional view of the guide sleeve extraction device of the present invention when in use;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the middle pull rod and the rotating rod;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure of the middle sleeve;

[0026] Figure 5 for Figure 1 A schematic diagram of the structure of the middle supporting bottom pad;

[0027] Figure 6 for Figure 1 A schematic diagram of the structure of the fixing nut;

[0028] Figure 7 Schematic diagram of step A) when the guide sleeve extraction device of the present invention is used;

[0029] Figure 8 Schematic diagram of step B) when the guide sleeve extraction device of the present invention is used;

[0030] Fig. 9 Schematic diagram of step C) when the guide sleeve extraction device of the present invention is used;

[0031] Fig.10 Schematic diagram of step D) when the guide sleeve extraction device of the present invention is used;

[0032] Fig.11 Schematic diagram of step E) when the guide sleeve extraction device of the present invention is used;

[0033] Fig.12 It is a schematic diagram of step F) when the guide sleeve extraction device of the present invention is used.

[0034] The components in the figure are numbered as follows:

[0035] Guide sleeve 1, pulling rod 2, rotating rod 3, first thread 4, second thread 5, sleeve 6, first through hole 7, internal thread of through hole 8, bottom support block 9, fixing nut 10, internal thread of nut 11, avoidance hole 12, second through hole 13, vertical surface 14. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figures 1 to 12 As shown, a guide sleeve extraction device comprises a longitudinal pulling rod 2 which can pass through the guide sleeve 1, a horizontal rotating rod 3 which is perpendicular to the pulling rod 2 is fixed at the top of the pulling rod 2, a first thread 4 is provided on the upper part of the pulling rod 2, and a second thread 5 is provided on the lower part, the first thread 4 and the second thread 5 are opposite, in this embodiment, the first thread 4 is a right-handed thread, the second thread 5 is a left-handed thread, the upper part of the pulling rod 2 is sleeved with a hollow sleeve 6 with an opening at the bottom, the upper surface of the sleeve 6 is provided with a first through hole 7 for the pulling rod 2 to pass through, the first through hole 7 is provided with a through hole internal thread 8 which matches the first thread 4, and is a right-handed thread bottom hole, the lower part of the pulling rod 2 is sleeved with a bottom supporting pad 9 and a fixing nut 10, the fixing nut 10 is located below the bottom supporting pad 9, and the fixing nut 10 is provided with a nut internal thread 11 which matches the second thread 5, and is a left-handed thread bottom hole.

[0040] Combination Figure 4 As shown, a plurality of longitudinal avoidance holes 12 are opened on the side wall of the sleeve 6. The avoidance holes 12 extend upward from the lower surface of the sleeve 6 to avoid the guide sleeve screws.

[0041] Combination Figure 5 As shown, a second through hole 13 is provided at the center of the bottom support block 9 for the pull rod 2 to pass through. The inner diameter of the second through hole 13 is larger than the diameter of the pull rod 2 . The outer diameter of the bottom support block 9 is smaller than the outer diameter of the guide sleeve 1 and larger than the inner diameter of the guide sleeve 1 .

[0042] Combination Figure 6 As shown, the outer side surface of the fixing nut 10 is provided with two opposite vertical surfaces 14 for easy screwing in.

[0043] In addition, in this embodiment, the connection point between the rotating rod 3 and the pulling rod 2 is located at the center of the rotating rod 3 .

[0044] When the guide sleeve extraction device of this embodiment is used, the following steps are included:

[0045] A) Figure 7 As shown, the sleeve 6 is placed on the first thread 4 of the pull rod 2, and then the pull rod 2 is inserted into the guide sleeve 1;

[0046] B) Figure 8As shown, the bottom support block 9 is placed on the pull rod 2 from the bottom, and then the fixing nut 10 is screwed on the second thread 5 of the pull rod 2 from the bottom;

[0047] C) Fig. 9 As shown, the rotating rod 3 is rotated counterclockwise to rotate the pull rod 2. Since the upper part of the pull rod 2 is right-handed and the sleeve 6 is a right-handed threaded bottom hole, the pull rod 2 drives the bottom support block 9 and the fixing nut 10 to move upward until the bottom support block 9 contacts the bottom surface of the guide sleeve 1. At this stage, the force for rotating the rotating rod 3 is basically the thread engagement force between the pull rod 2 and the sleeve 6, and only a very small force is required to ensure that the sleeve 6 remains stationary.

[0048] D) Fig.10 As shown, after the bottom support pad 9 moves upward to contact the bottom surface of the guide sleeve 1, the force of rotating the rotating rod 3 in step C) is no longer able to make it continue to rotate and move upward, and the fixing nut 10 cannot move upward with the pull rod 2. The force is continued to increase to rotate the rotating rod 3. Because the fixing nut 10 is a left-handed thread, the second thread 5 is also a left-handed thread. The rotating rod 3 continues to be rotated counterclockwise. The fixing nut 10 will have a tendency to move upward clockwise through the left-handed thread of the pull rod 2, causing the fixing nut 10 to continue to rise. Through the constraint between the bottom support pad 9 and the bottom surface of the guide sleeve 1, the fixing nut 10 is locked with the pull rod 2, and the bottom support pad 9 generates an upward pushing force on the guide sleeve 1.

[0049] E) Fig.11 As shown, the force applied by the rotating rod 3 is transmitted to the bottom support block 9 through the thread, until the push-out force of the bottom support block 9 is greater than the restraining force of the interference fit between the guide sleeve 1 and the guide sleeve mounting hole, and the guide sleeve 1 starts to move upward;

[0050] F) Fig.12 As shown, continue to rotate the rotating rod 3 until the guide sleeve 1 moves up and disengages from the guide sleeve mounting hole.

[0051] The guide sleeve extraction device and the use method thereof can extract the guide sleeve quickly and non-destructively, save manpower, eliminate potential safety hazards, and have a simple structure and are easy to operate.

[0052] It should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are limited only by the scope of the claims.

[0053] Finally, it should be pointed out that the above content is a further detailed description of the invention in combination with specific implementation methods. It cannot be considered that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple replacements made without departing from the concept of the present invention should be regarded as belonging to the protection scope of the present invention. The above embodiments are only more representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there can be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

[0054] For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and the above structures should be regarded as belonging to the protection scope of the present invention.

Claims

1. A guide sleeve extraction device, comprising a longitudinal extraction rod (2) which can pass through the guide sleeve (1), characterized in that: A rotating rod (3) which is transverse and perpendicular to the pull rod (2) is fixed at the top end of the pull rod (2); a first thread (4) is provided at the top of the pull rod (2), and a second thread (5) is provided at the bottom; the first thread (4) and the second thread (5) are in opposite directions; a hollow sleeve (6) is sleeved on the top of the pull rod (2) and is open at the bottom; a first through hole (7) is provided on the upper surface of the sleeve (6) for the pull rod (2) to pass through; the first through hole (7) is provided with an internal through hole thread (8) matching the first thread (4); a bottom support block (9) and a fixing nut (10) are sleeved on the bottom of the pull rod (2); the fixing nut (10) is located below the bottom support block (9), and the fixing nut (10) is provided with an internal nut thread (11) matching the second thread (5).

2. The guide sleeve extraction device according to claim 1, characterized in that: A plurality of longitudinal avoidance holes (12) are formed on the side wall of the sleeve (6), and the avoidance holes (12) extend upward from the lower surface of the sleeve (6).

3. The guide sleeve extraction device according to claim 1, characterized in that: The connection point between the rotating rod (3) and the pulling rod (2) is located at the center of the rotating rod (3).

4. The guide sleeve extraction device according to claim 1, characterized in that: A second through hole (13) for the pull rod (2) to pass through is provided at the center of the bottom support block (9); the inner diameter of the second through hole (13) is greater than the diameter of the pull rod (2).

5. The guide sleeve extraction device according to claim 1, characterized in that: The outer diameter of the bottom support block (9) is smaller than the outer diameter of the guide sleeve (1), and larger than the inner diameter of the guide sleeve (1).

6. The guide sleeve extraction device according to claim 1, characterized in that: The outer side surface of the fixing nut (10) is provided with two opposite vertical surfaces (14).

7. A method for using the guide sleeve extraction device according to any one of claims 1 to 6, characterized in that: The steps include: A) sleeve the sleeve (6) onto the first thread (4) of the pull rod (2), and then insert the pull rod (2) into the guide sleeve (1); B) the bottom support block (9) is placed on the pull rod (2) from the bottom, and the fixing nut (10) is screwed on the second thread (5) of the pull rod (2) from the bottom; C) rotating the rotating rod (3) to rotate the pulling rod (2), thereby driving the bottom supporting block (9) and the fixing nut (10) to move upward until the bottom supporting block (9) contacts the bottom surface of the guide sleeve (1); D) Continue to increase the force to rotate the rotating rod (3), so that the fixing nut (10) continues to rise, and through the constraint between the bottom support block (9) and the bottom surface of the guide sleeve (1), the fixing nut (10) and the pull rod (2) are locked, and the bottom support block (9) generates an upward pushing force on the guide sleeve (1); E) the force applied by the twisting of the rotating rod (3) is transmitted to the bottom support block (9) through the thread, until the pushing force of the bottom support block (9) is greater than the restraining force of the interference fit between the guide sleeve (1) and the guide sleeve mounting hole, and the guide sleeve (1) starts to move upward; F) Continue to rotate the rotating rod (3) until the guide sleeve (1) moves upward and disengages from the guide sleeve mounting hole.

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