A composite tooling bushing pressing device

Abstract

This invention relates to a composite tooling bushing pressing device, comprising a support handle, a base fixedly mounted on the left side of the support handle, a top block fixedly mounted on the top of the base, a threaded sleeve fixedly mounted on the left side of the support handle, a screw threadedly connected to the internal thread of the threaded sleeve, a cover plate fixedly mounted on the bottom end of the screw, a support mechanism provided on the outer side of the cover plate, and a rotating rod fixedly mounted on the top end of the screw. An insertion hole is provided on the front of the rotating rod, and a rotating handle is inserted into the insertion hole. This composite tooling bushing pressing device completely eliminates the noise caused by hammering during composite tooling bushing assembly, avoids the problem of misalignment between the bushing outer circle and the bushing hole due to the hammering position, and prevents the outer circle from breaking due to excessive hammering force, thereby ensuring a high assembly qualification rate.

Description

Technical Field

[0001] This invention relates to the field of bushing installation technology, specifically to a composite tooling bushing pressing device. Background Technology

[0002] Bushings are accessories used on the outside of mechanical parts to achieve functions such as sealing and wear protection. They are rings that act as gaskets. Bushings are highly flexible in use and can serve many purposes. In general, bushings are a type of component that protects equipment. The use of bushings can reduce equipment wear, vibration and noise, and also has an anti-corrosion effect.

[0003] Current technology often uses a hammering method to install bushings. A shim is placed on the bushing, and a tool is used to hammer the shim to force the bushing into the target hole. This assembly method generates excessive noise and poses safety hazards to operators. Furthermore, because the bushing itself is a hardened part (if the material is 45# steel, its hardness is HRC35-40; if the material is T10A, T12A, CrWMn, or CrMn steel, its hardness is HRC58-62), its high strength means that excessive force during hammering can easily break the shim, leading to further problems. Rework wastes manpower, raw materials, and processing resources, delays the project, and reduces production efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a composite tooling bushing pressing device, which has the advantages of convenient bushing installation, elimination of noise during hammering, and effective control of safety hazards. It solves the problems of existing technologies that use hammering to install bushings, which generates a lot of noise and poses certain safety hazards, and is also prone to bushing installation failure, rework, waste of human resources and raw materials, and delays in the construction period.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite tooling bushing pressing device, comprising a support handle, a base fixedly installed on the left side of the support handle, a top block fixedly installed on the top of the base, a screw sleeve fixedly installed on the left side of the support handle, a screw rod internally threadedly connected to the screw sleeve, a cover plate fixedly installed at the bottom end of the screw rod, a support mechanism provided on the outer side of the cover plate, a rotating rod fixedly installed at the top end of the screw rod, an insertion hole opened on the front of the rotating rod, a rotating handle inserted into the insertion hole, a limit groove opened on the front of the rotating rod and in front of the insertion hole, and a limit pin fixedly installed at the bottom of the rotating handle;

[0006] The support mechanism includes support sleeves fitted onto the left and right sides of the outer surface of the cover plate. A connecting sleeve is fixedly installed on the top of the support sleeve. Slots are opened on both the left and right sides of the inner wall of the connecting sleeve. A connecting rod is slidably installed inside the slot. A support spring is fitted onto the outer surface of the connecting rod. A slider is fixedly installed on the opposite side of each of the two connecting rods. A sliding groove is opened on both the left and right sides of the screw. A locking block is fixedly installed on the opposite side of each of the two connecting rods. Support blocks are fixedly installed on both the left and right sides of the inner wall of the support sleeve. An installation groove is opened on the opposite side of each support block. A support rod is inserted into the installation groove. A tension spring is fixedly installed on the opposite side of each of the two support rods. A support plate is fixedly installed on the opposite side of each of the two support rods.

[0007] Furthermore, the base is fixedly installed at the bottom left side of the support handle, and the screw sleeve is fixedly installed at the top left side of the support handle.

[0008] Furthermore, the top cover plate is movably installed above the top block, and the length of the screw is greater than the length of the screw sleeve.

[0009] Furthermore, the rotating handle passes through the insertion hole, the limiting pin is engaged inside the limiting groove, and an anti-slip pad is fixedly installed on the outer surface of the supporting handle.

[0010] Furthermore, the support sleeve consists of two fan-shaped semicircular pieces, and the height of the support sleeve is greater than the height of the cover plate.

[0011] Furthermore, the connecting sleeve is fitted onto the outside of the screw, and the connecting rod is movably mounted on the left and right sides of the screw via a slider.

[0012] Furthermore, the slider is movably installed inside the slide groove, and the connecting rod is engaged inside the slot by a locking block.

[0013] Furthermore, one end of the support spring is fixedly connected to the connecting rod, and the other end of the support spring is fixedly connected to the inner wall of the slot.

[0014] Furthermore, the top of the support block is a downward-sloping surface, and the support block is engaged with the left and right sides of the cover plate, with the support piece located below the cover plate.

[0015] Furthermore, the end of the tension spring away from the support rod is fixedly connected to the inner wall of the mounting groove, and a support groove is provided on the opposite side of the two support plates.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. Using this tooling, the noise during hammering is completely eliminated when assembling composite tooling linings.

[0018] 2. Using this tooling, there is no need for hammering assembly when assembling composite bushings, as the hammering position will not cause the bushing outer circle to be misaligned with the bushing hole.

[0019] 3. Using this tooling, the assembly of composite tooling bushings will not have the problem of the outer circle breaking due to excessive hammering force, which is a problem with the hammering assembly method. This ensures the assembly qualification rate and relatively improves production efficiency.

[0020] 4. This tooling is a non-consumable tooling and can be used for a long time.

[0021] 5. This tooling can be used in many assembly scenarios and has a wide range of applications.

[0022] 6. This tooling directly changes the way the lining is assembled, effectively controlling safety hazards. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a composite tooling bushing pressing device according to the present invention;

[0024] Figure 2 This is a front view of a composite tooling bushing pressing device according to the present invention;

[0025] Figure 3 This is a front sectional view of the support mechanism of a composite tooling bushing pressing device according to the present invention.

[0026] In the diagram: 1. Support handle; 2. Base; 3. Top block; 4. Screw sleeve; 5. Screw; 6. Cover plate; 7. Support mechanism; 701. Support sleeve; 702. Connecting sleeve; 703. Slot; 704. Connecting rod; 705. Support spring; 706. Slider; 707. Slide groove; 708. Locking block; 709. Support block; 710. Mounting slot; 711. Support rod; 712. Tension spring; 713. Support plate; 8. Rotating rod; 9. Insertion hole; 10. Rotating handle; 11. Limiting slot; 12. Limiting pin. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1-3A composite tooling bushing pressing device in this embodiment includes a support handle 1, a base 2 fixedly installed on the left side of the support handle 1, a top block 3 fixedly installed on the top of the base 2, a screw sleeve 4 fixedly installed on the left side of the support handle 1, a screw rod 5 connected to the internal thread of the screw sleeve 4, a cover plate 6 fixedly installed at the bottom end of the screw rod 5, a support mechanism 7 provided on the outer side of the cover plate 6, a rotating rod 8 fixedly installed at the top end of the screw rod 5, an insertion hole 9 opened on the front of the rotating rod 8, a rotating handle 10 inserted into the insertion hole 9, a limit groove 11 opened on the front of the rotating rod 8 and in front of the insertion hole 9, and a limit pin 12 fixedly installed at the bottom of the rotating handle 10.

[0029] During implementation, by setting the rotating rod 8, when bushing installation is required, first place the top block 3 below the mounting platform, place the bottom of the bushing inside the target hole, place the cover plate 6 above the bushing, and the fitter holds the support handle 1 and then rotates the rotating handle 10. The rotating handle 10 drives the rotating rod 8 to rotate, which in turn drives the screw 5 to rotate. The screw 5 rotates inside the screw sleeve 4, thereby causing the cover plate 6 to move downwards, gradually pushing the bushing into the target hole. Moreover, while rotating the rotating rod 8, the position of the rotating handle 10 can be moved forward or backward, engaging the limit pin 12 into the limit groove 1. Inside 1, the length of the lever arm can be increased, making it easier to rotate the rotating rod 8. This is achieved by extrusion. The assembly of the composite tooling bushing completely eliminates the noise caused by hammering. The assembly of the composite tooling bushing avoids the problem of misalignment between the bushing outer circle and the bushing hole due to the hammering position. It also avoids the problem of the outer circle breaking due to excessive hammering force, thus ensuring a high assembly pass rate and relatively improving production efficiency. This tooling is a non-consumable tooling that can be used for a long time. It can be applied to many assembly scenarios and has a wide range of applications. This tooling directly changes the bushing assembly method, effectively controlling safety hazards.

[0030] It should be noted that in moving parts, wear is caused by long-term friction. When the clearance between the shaft and the hole wears to a certain extent, the parts must be replaced. Therefore, designers choose materials with lower hardness and better wear resistance for bushings or sleeves. This can reduce the wear of the shaft and the seat. When the bushing or sleeve wears to a certain extent, it can be replaced, which can save the cost of replacing the shaft or seat. Generally speaking, the bushing and the seat adopt an interference fit, while the bushing and the shaft adopt a clearance fit. This is because wear cannot be avoided no matter what, and the service life can only be extended. Shaft parts are relatively easy to process.

[0031] Example 2: The support mechanism 7 includes a support sleeve 701 fitted onto the left and right sides of the outer surface of the cover plate 6. A connecting sleeve 702 is fixedly installed on the top of the support sleeve 701. Slots 703 are opened on both the left and right sides of the inner wall of the connecting sleeve 702. A connecting rod 704 is slidably installed inside the slot 703. A support spring 705 is fitted onto the outer surface of the connecting rod 704. A slider 706 is fixedly installed on the opposite side of the two connecting rods 704. A sliding groove 707 is opened on both the left and right sides of the screw 5. A locking block 708 is fixedly installed on the opposite side of the two connecting rods 704. A support block 709 is fixedly installed on both the left and right sides of the inner wall of the support sleeve 701. An installation groove 710 is opened on the opposite side of the support block 709. A support rod 711 is inserted into the installation groove 710. A tension spring 712 is fixedly installed on the opposite side of the two support rods 711. A support piece 713 is fixedly installed on the opposite side of the two support rods 711.

[0032] In this embodiment, by setting the support mechanism 7, the bushing can be clamped between two support plates 713 during installation. Different types of bushings are clamped by compressing the tension spring 712. During the downward movement of the cover plate 6, since the two support blocks 709 are inclined, the cover plate 6 will push the support sleeves 701 open to both sides after it descends. During the opening process, the connecting rod 704 will move inside the slot 703. As the screw 5 descends, it will compress the support sleeves 701. At this time, the slider 706 will move inside the slide groove 707 and move upward. At this time, the two support plates 713 will leave the outside of the bushing. When installing the bushing, the bushing is straightened and clamped to prevent the bushing from deflecting during the installation process, thereby further improving the quality of bushing installation, avoiding rework, and shortening the construction period.

[0033] It should be noted that the role of a bushing in actual operation is closely related to its application environment and purpose. In the field of valve applications, the bushing is installed inside the valve cover to cover the valve stem, thereby reducing valve leakage and achieving a sealing effect. In the field of bearing applications, the use of bushings can reduce wear between the bearing and the bearing seat and prevent the increase of the clearance between the shaft and the hole.

[0034] Example 3: The base 2 and the screw sleeve 4 are fixedly installed on the bottom and top of the left side of the support handle 1, respectively, and the support handle 1 is equipped with an anti-slip pad.

[0035] The top cover plate 6 is located above the top block 3. When installing the bushing, the top cover plate 6 squeezes the bushing to embed it into the target hole. The top block 3 will support the handle 1. After the screw 5 rotates, it will move inside the screw sleeve 4, thereby pushing the top cover plate 6 to squeeze the bushing.

[0036] The rotating handle 10 passes through the socket 9 and can move inside the socket 9, thereby changing the grip length of the rotating handle 10 and thus changing the length of the lever arm. After the pin 12 is engaged inside the limiting groove 11, the length of the rotating handle 10 is increased to the maximum, thus making it easier to rotate the rotating rod 8 and making it easier for the fitter to install the bushing.

[0037] The support sleeve 701 is movably installed on the left and right sides of the cover plate 6 in the form of two fan-shaped semicircular pieces. The connecting sleeve 702 is movably installed on the outside of the screw 5. The connecting rod 704 is fixedly connected to the slider 706 that slides inside the slide groove 707. When the slider 706 slides, it will drive the connecting sleeve 702 to move through the connecting rod 704.

[0038] The two ends of the support spring 705 are fixedly connected to the connecting rod 704 and the insertion slot 703 respectively. After the support sleeve 701 moves outward, the support spring 705 will be stretched. After the support spring 705 loses tension, it will automatically reset under its torque and pull the support sleeve 701 inward.

[0039] The top of the support block 709 is a downward-sloping surface, and the support block 709 is engaged with the left and right sides of the cover plate 6. The support piece 713 is located below the cover plate 6. When the cover plate 6 comes into contact with the support block 709, the angle of inclination below the support block 709 will increase, which will squeeze the support sleeve 701. After being squeezed, the support sleeve 701 will move outward, increasing the distance between the support sleeves 701, thereby loosening the bushing.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite tooling bushing press-in device comprising a support handle (1), characterized in that: The left side of the supporting handle (1) is fixedly installed with a base (2), the top of the base (2) is fixedly installed with a top block (3), the left side of the supporting handle (1) is fixedly installed with a screw sleeve (4), the inside of the screw sleeve (4) is threadedly connected with a screw rod (5), the bottom end of the screw rod (5) is fixedly installed with a cover plate (6), the outside of the cover plate (6) is provided with a supporting mechanism (7), the top end of the screw rod (5) is fixedly installed with a rotating rod (8), the front face of the rotating rod (8) is provided with a insertion hole (9), the inside of the insertion hole (9) is inserted with a rotating handle (10), the front face of the rotating rod (8) and located in front of the insertion hole (9) is provided with a limiting slot (11), the bottom of the rotating handle (10) is fixedly installed with a limiting bolt (12). The supporting mechanism (7) comprises supporting sleeves (701) which are sleeved on the left and right sides of the outer surface of the cover plate (6), the top of each supporting sleeve (701) is fixedly installed with a connecting sleeve (702), the left and right sides of the inner wall of each connecting sleeve (702) is provided with an insertion slot (703), the inside of each insertion slot (703) is slidably installed with a connecting rod (704), the outer surface of each connecting rod (704) is sleeved with a supporting spring (705), the opposite side of each connecting rod (704) is fixedly installed with a sliding block (706), the left and right sides of the screw rod (5) is provided with a sliding groove (707), the side away from each other of the two connecting rods (704) is fixedly installed with a clamping block (708), the left and right sides of the inner wall of the supporting sleeve (701) is fixedly installed with a supporting block (709), the opposite side of each supporting block (709) is provided with a mounting slot (710), the inside of each mounting slot (710) is inserted with a supporting rod (711), the side away from each other of the two supporting rods (711) is fixedly installed with a stretching spring (712), the opposite side of the two supporting rods (711) is fixedly installed with a supporting piece (713). The supporting sleeve (701) is two fan-shaped semicircular pieces, and the height of the supporting sleeve (701) is greater than the height of the cover plate (6). The connecting sleeve (702) is sleeved on the outside of the screw rod (5), and the connecting rod (704) is movably installed on the left and right sides of the screw rod (5) through the sliding block (706). The sliding block (706) is movably installed in the sliding groove (707), and the connecting rod (704) is clamped in the insertion slot (703) through the clamping block (708). The top of the supporting block (709) is a downwardly inclined inclined surface, and the supporting block (709) is clamped on the left and right sides of the cover plate (6), and the supporting piece (713) is below the cover plate (6). The end away from the supporting rod (711) of the stretching spring (712) is fixedly connected with the inner wall of the mounting slot (710), and the opposite side of the two supporting pieces (713) is provided with a supporting slot.

2. A composite tooling bushing press-in device according to claim 1, wherein: The base (2) is fixedly installed on the bottom of the left side of the supporting handle (1), and the screw sleeve (4) is fixedly installed on the top of the left side of the supporting handle (1).

3. A composite tooling bushing press-in device according to claim 1, wherein: The cover plate (6) is movably installed above the top block (3), and the length of the screw rod (5) is greater than the length of the screw sleeve (4).

4. A composite tooling bushing press-in device according to claim 1, wherein: The rotating handle (10) penetrates the insertion hole (9), the limiting bolt (12) is clamped in the inside of the limiting slot (11), and the outer surface of the supporting handle (1) is fixedly installed with the antiskid pad.

5. A composite tooling bushing press-in device according to claim 1, wherein: One end of the supporting spring (705) is fixedly connected with the connecting rod (704), and the other end of the supporting spring (705) is fixedly connected with the inner wall of the insertion slot (703).

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