Portable hand-held external cylindrical honing machine

Abstract

The application relates to a portable hand-held external cylindrical honing machine, which comprises a honing assembly, a base body, a supporting assembly and a power connecting assembly; the honing assembly is installed in the base body; one end of the supporting assembly is connected with the base body, and the other end of the supporting assembly is connected with the power connecting assembly; the power connecting assembly comprises a universal hinge, one end of the universal hinge is connected with the side of the supporting assembly far from the base body, and the other end of the universal hinge is provided with a connecting rod; and in addition, an adjusting assembly is arranged on the base body to adjust the position of the honing assembly. The application can conveniently and quickly process the external cylindrical surface of a workpiece and meet the requirements of size and precision.

Description

Technical Field

[0001] This invention relates to the field of honing equipment technology, and more particularly to a portable handheld external cylindrical honing machine. Background Technology

[0002] Large structural components are widely used in the aerospace field. To improve the overall impact resistance of aircraft landing gear, most of these structural components are forged. Common piston rod designs are mostly T-shaped or L-shaped, and the piston rod and axle areas have high precision and dimensional requirements. While grinding can meet the requirements for the piston rod, grinding the axle area requires sophisticated tooling. Chinese patent application CN211991781U discloses a honing machine with multiple processing techniques, which reuses discarded honing machines and expands production capacity. However, this equipment can only be used for processing applications with low precision and surface roughness requirements, and its complex design makes it difficult to operate, its heavy weight makes it inconvenient to move, and it causes significant impact on the machine tool during operation. Therefore, how to conveniently and quickly process the outer cylindrical surface of workpieces has become an urgent problem to be solved. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, and in order to facilitate and quickly process the outer cylindrical surface of the workpiece, the present invention provides a portable handheld external cylindrical honing machine.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A portable handheld external cylindrical honing machine includes a honing assembly, a base, a support assembly, and a power connection assembly; the honing assembly is installed in the base; one end of the support assembly is connected to the base, and the other end of the support assembly is connected to the power connection assembly; the power connection assembly includes a universal hinge, one end of which is connected to the side of the support assembly away from the base, and the other end of the universal hinge is provided with a connecting rod.

[0005] The honing assembly is installed in the base body and can process the outer cylindrical surface of the workpiece. The support assembly connects the base body to the power connection assembly. The power connection assembly includes a universal hinge with a connecting rod. An external drive device is connected to the universal hinge through the connecting rod. When the external drive device rotates, it drives the honing assembly in the base body to rotate together with the base body through the universal hinge, thus processing the outer cylindrical surface of the workpiece.

[0006] Furthermore, the use of universal hinges can prevent the honing machine from tilting due to manual force.

[0007] Furthermore, the connecting rod is connected to an external driving device to obtain driving force. The external driving device is a handheld electric tool with a rotating function or a handheld pneumatic tool with a rotating function.

[0008] Preferably, the external driving device is a pneumatic wrench. The connecting rod is connected to the pneumatic wrench, and the pneumatic wrench drives the connecting rod to rotate, thereby driving the entire external honing machine to rotate through the universal hinge, so that the external honing machine can be operated manually.

[0009] Furthermore, the substrate includes a cylindrical shell, on which a plurality of first guide grooves and a plurality of first slots are uniformly arranged along the axial direction, and the first guide grooves and the first slots penetrate the wall of the cylindrical shell.

[0010] Furthermore, the support assembly includes a first bracket and a second bracket; the first bracket has a plurality of second slots evenly arranged along the axial direction; the second bracket is installed in the first slot on the base, and the second bracket is provided with a third slot; one end of the connecting rod is installed in the second slot, and the other end of the connecting rod is installed in the corresponding third slot, the connecting rod connecting the first bracket and the second bracket together. Thus, the first bracket is connected to the base by the connecting rod, and the space between the first bracket and the base is a hollow structure, reducing the weight of the equipment and making it easy to carry.

[0011] Furthermore, the honing assembly includes a grinding block and a clamping block; the grinding block is fixed on the clamping block, and the clamping block with the grinding block fixed is installed in the first guide groove, with the working surface of the grinding block facing the axis of the base body.

[0012] Furthermore, the grinding block is an oilstone. Using an oilstone ensures high machining accuracy.

[0013] Furthermore, the side of the card block away from the oilstone is provided with several first inclined surfaces. The angle between the first inclined surface along the axis of the base and the plane where the contact surface of the card block and the oilstone is located is an acute angle, and the bottom of the first inclined surface faces the direction of the first support 2.

[0014] Furthermore, symmetrical compression springs are arranged on both sides of the locking block, and the compression springs are installed on the outer wall of the base. The locking block is placed between the compression springs and is compressed to ensure that the oilstone and the locking block as a whole do not fall off. Since the compression springs can bend to a certain extent, the oilstone and the locking block as a whole can move in the first guide groove.

[0015] Furthermore, one end of the compression spring contacts the locking block, and the other end is fixed to the baffle plate. Screws are mounted on the baffle plate, which is then installed on the outer wall of the base. Thus, the screws can adjust the distance between the baffle plate and the locking block, and tightening the screws deforms the compression spring, generating elastic force to press the locking block.

[0016] Furthermore, the external honing machine also includes an adjustment assembly, which includes a nut, a butterfly spring, a retaining ring, a limiting block, and a wedge block.

[0017] Furthermore, the wedge is positioned between the locking block and the limiting block, contacting the side of the locking block with the first inclined surface. A second inclined surface is located on the side of the wedge that contacts the locking block. The angle between the second inclined surface along the axis of the base and the plane containing the side of the wedge away from the locking block is acute. The bottom of the second inclined surface faces away from the first support. The second inclined surface matches the shape and size of the first inclined surface. The limiting block is fixed to the outer wall of the base. Thus, when the wedge moves away from the first support, the interaction force between the second and first inclined surfaces allows the locking block to move towards the center of the base, thereby adjusting the position of the whetstone.

[0018] Furthermore, a second guide groove is provided on the side of the limiting block that contacts the wedge block, and the wedge block moves in the second guide groove to avoid swaying.

[0019] Furthermore, the retaining ring is positioned on the side of the base facing the first support. One side of the retaining ring contacts the wedge block, and the other side contacts the disc spring. A nut is positioned on the side of the disc spring facing the first support, and the nut is mounted on the base and threaded to the outer circumference of the base. Thus, when the nut is tightened, the nut pushes the disc spring to move away from the first support. The disc spring simultaneously pushes the retaining ring, which in turn pushes the wedge block, which in turn pushes the locking block, thereby adjusting the position of the oilstone. In addition, the presence of the disc spring ensures a continuous compressive force on the locking block that holds the oilstone, preventing the oilstone from becoming worn and unable to contact the workpiece.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the present invention adopts a hollow structure design, which is easy to carry; it can be connected to an external drive device and can be completed manually, and it adopts a universal hinge to prevent the honing machine from deviating due to manual force; the grinding block is made of oilstone, which has high processing accuracy; the position of the oilstone is adjustable, and a spring structure is used to continuously apply pressure to the oilstone to prevent the oilstone from being unable to contact the workpiece after wear. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the present invention; Figure 2 yes Figure 1 Cross-sectional schematic diagram of the present invention; Figure 3 This is a schematic diagram of the locking block and the clamping spring structure; Figure 4 This is an isometric view of the present invention; Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle; Figure 6 This is the main view of the workpiece to be processed; Figure 7 This is the left view of the workpiece to be processed.

[0022] Reference numerals: 1 Universal hinge, 2 First bracket, 3 Connecting rod, 4 Second bracket, 5 Base, 6 Nut, 7 Butterfly spring, 8 Retaining ring, 9 Limiting block, 10 Wedge block, 11 Locking block, 12 Oilstone, 13 Baffle, 14 Compression spring, 15 Screw, 16 Workpiece to be processed, 101 Connecting rod, 201 Second slot, 401 Third slot, 501 First guide groove, 502 First slot, 503 Center hole, 901 Second guide groove, 1601 Wheel axle. Detailed Implementation

[0023] The present invention will be described in detail below with reference to embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0024] like Figures 1-7 As shown, a portable handheld external cylindrical honing machine includes a honing assembly, a base 5, a support assembly, a power connection assembly, and an adjustment assembly. The base 5 includes a cylindrical shell, and three first guide grooves 501 are evenly arranged along the axial direction on the base 5, the first guide grooves 501 penetrating the base wall; in addition, three first slots 502 are evenly arranged along the axial direction on the base 5, the first slots 502 penetrating the base wall.

[0025] The power connection assembly includes a universal hinge 1, one end of which is provided with a connecting rod 101, and the other end of the universal hinge 1 is fixed in a reserved hole at the center of the first bracket. The connecting rod 101 is used to connect an external handheld pneumatic wrench.

[0026] The honing assembly includes an oilstone 12 and a retaining block 11. The oilstone 12 is placed in the retaining block 11, and the two are glued together. The oilstone 12 and the retaining block 11 are then installed together in the first guide groove 501, with the working surface of the oilstone 12 facing the axis of the base 5. Figure 3 As shown, compression springs 14 are symmetrically arranged on the outer wall of the long side of the first guide groove 501. The end of the locking block 11 away from the oilstone 12 protrudes from the first guide groove 501 and is locked between the compression springs 14, preventing the oilstone 12 and the locking block 11 from falling out of the guide groove 501 of the base 5. One end of the compression spring 14 is fixed to the baffle 13, and the other end contacts the side where the long side of the locking block 11 is located. The baffle 13 is provided with screws 15, which can not only fix the baffle 13 to the base 5, but also adjust the distance between the baffle 13 and the locking block 11, thereby changing the length of the compression spring 14 to adjust the squeezing force of the compression spring 14 on the locking block 11. In addition, since the compression spring 14 can be bent to a certain extent, the locking block 11 can move within a certain range in the guide groove 501 of the base 5. Figure 2As shown, the side of the card block 11 away from the oilstone 12 is provided with two first inclined surfaces. The angle between the first inclined surface along the axis of the base 5 and the plane where the contact surface of the card block 11 and the oilstone 12 is located is an acute angle. The two first inclined surfaces are located at the two ends of the card block 11 along the axis of the base 5, and the bottom of the two first inclined surfaces are facing the direction of the first bracket 2.

[0027] The adjusting assembly includes a nut 6, a butterfly spring 7, a retaining ring 8, a limiting block 9, and a wedge block 10. For example... Figure 2 As shown, the wedge 10 has two second inclined surfaces. The angle between the second inclined surface along the axis of the base 5 and the plane containing the side of the wedge 10 away from the locking block 11 is an acute angle, and the bottoms of both second inclined surfaces face away from the first support 2. The second inclined surfaces match the shape and size of the first inclined surfaces, and the side of the wedge 10 with the second inclined surface contacts the side of the locking block 11 with the first inclined surface. Figure 4 As shown, the side of the wedge 10 away from the locking block 11 contacts the limiting block 9; a second guide groove 901 is provided on the side of the limiting block 9 that contacts the wedge 10, and the wedge 10 is installed in the second guide groove 901 and can move along the second guide groove 901 to avoid swaying; the limiting block 9 is fixed to the outer wall of the base 5. Figure 1 As shown, the retaining ring 8 is fitted onto the outer circle of the right end of the base 5. A butterfly spring 7 is provided on the right side of the retaining ring 8, and a nut 6 is provided on the right side of the butterfly spring 7. The nut 6 is installed on the outer circumferential thread of the base 5. When the nut 6 is tightened to the left, it will push the butterfly spring 7 to move to the left, and in turn push the retaining ring 8 and the wedge block 10 to move to the left, thereby causing the locking block 11 and the oilstone 12 to move as a whole towards the center of the base 5. The presence of the butterfly spring 7 can ensure continuous pressure on the locking block 11 and the oilstone 12 as a whole, preventing the oilstone 12 from being unable to contact the workpiece after wear.

[0028] The support assembly includes a first bracket 2, a second bracket 4, and a connecting rod 3. For example... Figure 4 As shown, the second bracket 4 is installed in the first slot 502 of the base 5, and the second bracket 4 is provided with a third slot 401; the first bracket 2 is provided with three second slots 201; the connecting rod 3 connects the first bracket 2 and the second bracket 4, one end of the connecting rod 3 is fixed in the third slot 401, and the other end is fixed in the second slot 201.

[0029] The operation method of this invention is as follows: Step 1: Insert the axle portion 1601 of the workpiece 16 into the center hole 503 of the base 5.

[0030] Step 2: Adjust the position of nut 6 so that the working end face of oilstone 12 abuts against the outer circle of wheel axle 1601.

[0031] Step 3: Connect the connecting rod 101 to a pneumatic or electric tool.

[0032] Step 4: Turn on the pneumatic or electric tool to drive the external honing machine to rotate and hone the outer circle of the wheel shaft part 1601.

[0033] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

Claims

1. A portable handheld external cylindrical honing machine, characterized in that, It includes a honing assembly, a base (5), a support assembly, and a power connection assembly; the honing assembly is installed inside the base (5), one end of the support assembly is connected to the base (5), and the other end of the support assembly is connected to the power connection assembly; the power connection assembly includes a universal hinge (1), one end of the universal hinge (1) is connected to the side of the support assembly away from the base (5), and the other end of the universal hinge (1) is provided with a connecting rod (101). The base (5) includes a cylindrical shell, on which a plurality of first guide grooves (501) and a plurality of first slots (502) are evenly distributed along the axial direction, and the first guide grooves (501) and the first slots (502) both penetrate the wall of the cylindrical shell; the honing assembly includes a grinding block and a locking block (11), and the grinding block is fixed on the locking block (11); The clamping block (11) has several first inclined surfaces on the side away from the grinding block; the clamping block (11) with the grinding block fixed is installed in the first guide groove (501), with the working surface of the grinding block facing the axis of the base; clamping springs (14) are symmetrically arranged on both sides of the clamping block (11) to clamp the clamping block (11) with the grinding block fixed in the middle; one end of the clamping spring (14) is fixed to the baffle (13), and the other end is in contact with the clamping block (11), and the baffle (13) is fixed to the outer wall of the base (5) by screws (15); the clamping spring ( 14) It can be bent to a certain extent, so that the block (11) has a certain range of movement in the first guide groove (501) of the base (5); the screw (15) is used to adjust the distance between the baffle (13) and the block (11) to change the length of the compression spring (14) and its squeezing force on the block (11); the support assembly includes a first bracket (2) and a second bracket (4); the second bracket (4) is installed in the first slot (502), and the first bracket (2) and the second bracket (4) are connected together by several connecting rods (3); An adjustment assembly is provided on the base (5), the adjustment assembly includes a nut (6), a disc spring (7), a retaining ring (8), a limiting block (9), and a wedge (10); the retaining ring (8) is provided on the side of the base (5) facing the first support (2), one side of the retaining ring (8) is in contact with the wedge (10), and the other side is in contact with the disc spring (7), the side of the disc spring (7) facing the first support is provided with a nut (6), the nut (6) is installed on the base (5) and threadedly connected to the outer circumference of the base (5); the wedge (10) is installed between the locking block (11) and the limiting block (9), and the limiting block (9) is fixed on the outer wall of the base (5).

2. The portable handheld external cylindrical honing machine according to claim 1, characterized in that, The grinding block is an oilstone (12).

3. A portable handheld external cylindrical honing machine according to claim 1, characterized in that, The wedge (10) contacts the side of the card block (11) where the first inclined surface is provided, and the side of the wedge (10) that contacts the card block (11) has a second inclined surface, the shape and size of which match the first inclined surface.

4. A portable handheld external cylindrical honing machine according to claim 3, characterized in that, A second guide groove (901) is provided on the side of the limiting block (9) that contacts the wedge block (10), and the wedge block (10) is installed in the second guide groove (901).

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