A guide support arm pin shaft dismounting auxiliary tool

Abstract

This application belongs to the field of guide arm assembly and disassembly technology, and particularly relates to an auxiliary tooling for disassembling the pin of a guide arm support. It includes a positioning frame and a striking block. The positioning frame is mounted on the guide arm box and has a guide hole corresponding to the pin mounting hole. A guide sleeve is slidably connected within the guide hole, and the guide sleeve is fitted onto the outside of the pin. The guide sleeve is used to insert into the pin mounting hole and, in conjunction with the striking block, corrects the deformed portion of the pin. When the guide sleeve is fitted onto the outside of the pin, the striking block strikes the guide sleeve, causing it to gradually move downwards along the pin mounting hole. Under the action of the striking force, the deformed portion of the pin gradually enters the guide sleeve. After the deformation is basically corrected, the pin can be quickly removed, thus facilitating the disassembly of the support arm and preventing premature guide arm failure due to pin deformation, which prevents the support arm from being replaced.

Description

Technical Field

[0001] This application belongs to the field of guide arm assembly and disassembly technology, and in particular relates to an auxiliary tooling for disassembling the pin shaft of a guide arm. Background Technology

[0002] In the production of high-speed wire rod, the rolling area is often equipped with alternating horizontal and vertical short-stress rolling mills. Both the front and rear of the mill are equipped with inlet and outlet guides. When the workpiece enters the inlet guide of the next mill from the outlet guide of the previous mill, the guides provide guidance and support, ensuring the workpiece bites into the mill normally and guaranteeing smooth production.

[0003] Currently, the pre-finishing mill of the high-speed wire rod production line uses a horizontal-vertical alternating mill supplied by the Italian company Danieli, and its imported guides are all Italian Danieli CAR3 type rolling guides, such as... Figure 1 As shown, the guide consists of a guide box 1, an induction clamp 2, two support arms 3, a pivot pin 4, and guide wheels 5. The two guide wheels 5 are rotatably connected to the two support arms 3 respectively. The pivot pin 4 passes sequentially through one side of the guide box 1, the support arms 3, and the other side of the guide box 1. Both ends are fixed with fasteners, locking the support arms 3 to the guide box 1. When using this guide in the production process, the support arms 3 need to be disassembled and replaced after reaching their service life. Sometimes, due to production vibrations, improper installation, or steel stacking, the pivot pin 4 fixing the guide support arm 3 deforms and becomes difficult to disassemble. Disassembly is difficult and time-consuming; in severe cases, it cannot be repaired normally and must be scrapped, resulting in equipment loss. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this application provides an auxiliary tooling for disassembling the guide support arm pin, which enables convenient disassembly of the deformed pin, thereby improving the efficiency of support arm replacement.

[0005] To achieve the above objectives, the technical solution provided in this application is as follows:

[0006] This application provides an auxiliary tooling for disassembling the pin of a guide support arm, including a positioning frame and a striking block. The positioning frame is mounted on the guide box and is fixed relative to the guide box. The positioning frame has a guide hole that is opposite to the pin mounting hole. A guide sleeve is slidably connected in the guide hole. The guide sleeve is sleeved on the outside of the pin and is used to insert into the pin mounting hole and cooperate with the striking block to correct the deformed part of the pin.

[0007] Optionally, the positioning frame has a slot on its inner side, which engages with the outer side of the protrusion at the top of the guide box.

[0008] Optionally, the positioning frame includes a top plate and side plates connected to both sides of the top plate. The top plate and the two side plates are combined to form a U-shaped structure, and the inner sidewall of the side plate is in contact with the support arm.

[0009] Optionally, the positioning frame is detachably fixed to the guide by a fastener.

[0010] Optionally, the fastener includes a screw inserted into the side plate, and a corresponding screw hole is provided on the support arm, with the screw threadedly connected to the screw hole.

[0011] Optionally, the positioning frame is provided with two guide holes, which are respectively opposite to the pin mounting holes of the two side support arms.

[0012] Optionally, the positioning frame is provided with a handle, which is ring-shaped and connected to the outer wall of the top plate by a fixing rod.

[0013] Optionally, the outer diameter of the guide sleeve is smaller than the diameter of the shaft pin mounting hole, and the inner diameter of the guide sleeve is larger than the diameter of the shaft pin.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] This application mounts the positioning frame on the guide box to ensure that the guide hole is aligned with the pin mounting hole. The guide sleeve is inserted into the pin mounting hole under the guidance of the guide hole and is sleeved on the outside of the pin. The guide sleeve is tapped with a hammer block, and the guide sleeve gradually moves from top to bottom along the pin mounting hole. The deformed position of the pin will gradually enter the guide sleeve under the action of the hammering force. After the deformation position is basically corrected, the pin can be quickly removed, which makes it easy to disassemble the support arm and avoids the situation where the support arm cannot be replaced due to the deformation of the pin, resulting in premature scrapping of the guide.

[0016] The positioning frame is stabilized by the slots on the positioning frame engaging with the protrusions on the guide box and by providing a hand grip. The side wall of the support frame is fixed to the support arm of the guide by screws (fixtures), which further stabilizes the striking process and facilitates the restoration of the pin's deformed position. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a rolling guide structure in the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of an auxiliary tooling for disassembling a guide support arm pin in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram showing the usage state of an auxiliary tooling for disassembling a guide support arm pin in an embodiment of this application;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Guide box; 11. Protrusion; 2. Induction clamp; 3. Support arm; 4. Shaft pin; 5. Guide wheel; 6. Positioning frame; 61. Guide hole; 62. Top plate; 63. Side plate; 64. Slot; 7. Screw; 8. Shaft pin mounting hole; 9. Guide sleeve rod; 10. Handle. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0024] Example 1

[0025] like Figure 2 and Figure 3 As shown, an auxiliary tooling for disassembling a guide support arm pin includes a positioning frame 6 and a striking block. The positioning frame 6 is mounted on the guide box 1 and is fixed relative to the guide box 1. The positioning frame 6 has a guide hole 61 that is opposite to the pin mounting hole 8. A guide sleeve 9 is slidably connected in the guide hole 61. The guide sleeve 9 is sleeved on the outside of the pin 4. The guide sleeve 9 is used to insert into the pin mounting hole 8 and cooperate with the striking block to correct the deformed part of the pin 4.

[0026] When the shaft pin 4 needs to be disassembled, the positioning frame 6 is set up on the guide box 1 to ensure that the guide hole 61 is aligned with the shaft pin mounting hole 8. The outer diameter of the guide sleeve 9 is smaller than the diameter of the shaft pin mounting hole 8, and the inner diameter of the guide sleeve 9 is larger than the diameter of the shaft pin 4. The guide sleeve 9 is inserted into the pin mounting hole under the guidance of the guide hole 61 and is sleeved on the outside of the shaft pin 4. The guide sleeve 9 is tapped with a hammer block. The guide sleeve 9 gradually moves from top to bottom along the pin mounting hole. The deformed position of the pin will gradually enter the guide sleeve 9 under the action of the hammering force. After the deformation position is basically corrected, the pin can be quickly removed, which makes it easier to disassemble the support arm 3. This avoids the situation where the support arm 3 cannot be replaced due to the deformation of the shaft pin 4, resulting in the premature scrapping of the guide.

[0027] Example 2

[0028] The difference between this embodiment and embodiment 1 is that the positioning frame 6 includes a top plate 62 and side plates 63 connected to both sides of the top plate 62. The top plate 62 and the two side plates 63 are combined to form a U-shaped structure, and the inner sidewall of the side plate 63 is in contact with the support arm 3.

[0029] The top plate 62 of the positioning frame 6 has a slot 64 on its inner side, which engages with the outer side of the protrusion 11 at the top of the guide box 1. The positioning frame 6 has a handle 10, which is ring-shaped and connected to the outer wall of the top plate 62 by a fixing rod. The slot 64 on the positioning frame 6 engages with the protrusion 11 on the guide box 1, and the handle 10 is designed for hand gripping. During use, the handle 10 is held steady by hand to prevent the positioning frame 6 from tilting, thus helping to maintain the stability of the positioning frame 6.

[0030] The positioning frame 6 is detachably fixed to the guide via a fastener. The fastener includes a screw 7 inserted into the side plate 63, and a corresponding screw hole is provided on the support arm 3. The screw 7 is threadedly connected to the screw hole. By using the screw 7 (fastener) to fix the side wall of the support frame to the support arm 3 of the guide, the stability of the hammering process is further maintained, and it is convenient to restore the deformed position of the pin to its original shape. When the pin 4 does not need to be disassembled, the tooling can be easily removed.

[0031] In this embodiment, the positioning frame 6 is provided with two guide holes 61, which are respectively opposite to the pin mounting holes 8 of the support arms 3 on both sides. By inserting the guide sleeve 9 into the two guide holes 61, the two pins 4 can be disassembled simultaneously, improving operation efficiency.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An auxiliary tooling for disassembling the pin of a guide support arm, characterized in that, The device includes a positioning frame and a striking block. The positioning frame is mounted on a guide box and is fixed relative to the guide box. The positioning frame has a guide hole that is opposite to the shaft pin mounting hole. A guide sleeve is slidably connected in the guide hole. The guide sleeve is sleeved on the outside of the shaft pin and is used to insert into the shaft pin mounting hole and cooperate with the striking block to correct the deformed part of the shaft pin.

2. The auxiliary tooling for disassembling the guide support arm pin as described in claim 1, characterized in that, The positioning frame has a slot on its inner side, which engages with the outer side of the protrusion at the top of the guide box.

3. The auxiliary tooling for disassembling the guide support arm pin as described in claim 1, characterized in that, The positioning frame includes a top plate and side plates connected to both sides of the top plate. The top plate and the two side plates are combined to form a U-shaped structure, and the inner side wall of the side plate is in contact with the support arm.

4. The auxiliary tooling for disassembling the guide support arm pin as described in claim 3, characterized in that, The positioning frame is detachably fixed to the guide by a fastener.

5. The auxiliary tooling for disassembling the guide support arm pin as described in claim 4, characterized in that, The fastener includes a screw inserted into the side plate, and a corresponding screw hole is provided on the support arm, with the screw threadedly connected to the screw hole.

6. The auxiliary tooling for disassembling the guide support arm pin as described in claim 1, characterized in that, The positioning frame is provided with two guide holes, which are respectively opposite to the pin mounting holes of the two side support arms.

7. The auxiliary tooling for disassembling the guide support arm pin as described in claim 3, characterized in that, The positioning frame is equipped with a handle, which is ring-shaped and connected to the outer wall of the top plate via a fixing rod.

8. The auxiliary tooling for disassembling the guide support arm pin as described in claim 1, characterized in that, The outer diameter of the guide sleeve is smaller than the diameter of the mounting hole for the shaft pin, and the inner diameter of the guide sleeve is larger than the diameter of the shaft pin.

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