CN221088334U - Metal hole finishing device - Google Patents

Abstract

The utility model relates to the technical field of metal hole finishing, and particularly discloses a metal hole finishing device which comprises a fixing structure and a positioning structure, wherein the fixing structure is arranged on one side of a hole to be polished, and the positioning structure is arranged above the hole to be polished; the fixing structure comprises a magnetic seat and a supporting frame, the magnetic seat is arranged on the surface of the product, and the supporting frame is arranged above the magnetic seat; the positioning structure is provided with a polishing structure, the polishing structure comprises a polishing assembly and a sliding assembly, and the polishing assembly passes through the positioning structure to be in contact with a hole to be polished; the sliding component is arranged on the polishing component and is movably arranged on the supporting frame. The utility model can combine the complex appearance of the product to change the appearance structure and the fixing position, and can reduce the production cost while improving the finishing stability and reliability of the metal hole.

Description

Metal hole finishing device

Technical Field

The utility model relates to the technical field of metal hole finishing, in particular to a metal hole finishing device.

Background

In the mechanical processing of products, the machining is limited by blank manufacturing and nondestructive inspection technology, various unsatisfactory conditions can occur after part of holes are finished, further treatment is needed, such as hole deformation caused by welding nearby holes or welding splashing, cleaning is needed, or polishing is needed in a range allowed by the size due to defects of the holes after machining, or back chipping is needed for the bottoms of the holes, and even unsatisfactory tiny defects such as air holes, inclusions and the like can occur. In this case, the holes are required to meet the requirements of dimensional accuracy and appearance by re-machining or polishing.

In actual production, if the problem in the hole is encountered, the time, labor cost and the like of clamping and transportation caused by re-machining are considered, and if the hole size precision and appearance requirements are not high, an operator can directly polish the hole to meet the requirements. However, when the hole size precision and the appearance requirement are high, the polishing level of operators is limited, the polishing stability and precision are difficult to ensure, and the machining requirement cannot be met. Moreover, when the defect needs to be polished after repair welding, the polishing amount is uneven and large, and the holes can only be required by adopting a mode of re-machining after full welding, so that the production cost is increased.

Therefore, in order to adapt to the complex production environment on site, improve the finishing efficiency and reduce the production cost, a metal hole finishing device needs to be provided.

Disclosure of utility model

The utility model aims to provide a metal hole finishing device which is mainly used for saving the production cost of re-machining after repairing the high-precision hole tiny defects by welding, and can also be used for directly polishing and cleaning the defects in the holes, finishing micro deformation, cleaning welding spatters in the holes, back chipping at the bottom of the holes and the like.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model mainly provides a device for finishing after local repair welding of defects in holes by connecting external input power to drive a special finishing grinding head to rotate and operating the finishing grinding head to move up and down by personnel to realize finishing after local repair welding of the defects in the holes, which aims at metal products with small holes and mass production, is fixed by magnetic force adsorption and is positioned by a machine around the holes, so that the grinding precision is improved and the production cost is reduced. The metal hole finishing device comprises a fixing structure and a positioning structure, wherein the fixing structure is arranged on one side of a hole to be polished, and the positioning structure is arranged above the hole to be polished; the fixing structure comprises a magnetic seat and a supporting frame, the magnetic seat is arranged on the surface of the product, and the supporting frame is arranged above the magnetic seat; the positioning structure is provided with a polishing structure, and the polishing structure comprises a polishing assembly and a sliding assembly; the upper end of the polishing assembly is externally connected with a power input source, and the lower end of the polishing assembly passes through the positioning structure to be contacted with a hole to be polished; the sliding component is arranged on the polishing component and is movably arranged on the supporting frame.

The principle and the advantages of the scheme are as follows:

Although the prior art can also use a magnetic drill to reprocess the metal hole, the prior magnetic drill can only be used for the post-welding treatment of the conventional hole defects with low requirements on position degree, roughness, hole depth and diameter tolerance, and cannot adapt to products with complex shapes, so that the application range of the magnetic drill is limited, and the universality is poor. And the magnetic drill can only be powered by a single motor, and the motor power is relatively fixed, so that the polishing force is difficult to control and adjust, various complex production field environments are difficult to meet, and the magnetic drill has higher cost, so that the production cost is increased.

The fixing structure and the positioning structure are adopted for assembly and matching, so that the fixing structure and the fixing position can be changed by combining complex appearance of a product, stability and reliability in finishing are improved, the fixing structure can adapt to complex structures around holes, and then the polishing position and distance of a polishing assembly are controlled according to Kong Teshu apertures and upper and lower tolerances, so that the polishing assembly meets the finishing requirements, and production cost and time for machining holes, particularly high-precision Kong Xixiao Kong Chongxin are saved. Meanwhile, the polishing assembly is arranged, and the polishing mode can be controlled according to the polishing requirements by externally connecting various power inputs, so that the polishing force can be flexibly adjusted to adapt to various complex production environments, and the polishing assembly is simple in structure, low in manufacturing cost and high in economical efficiency and practicality.

Drawings

FIG. 1 is a schematic diagram of a finishing device according to a first embodiment of the present utility model;

FIG. 2 is a schematic structural view of a fixing structure according to a first embodiment of the present utility model;

FIG. 3 is a schematic view of a positioning structure according to a first embodiment of the present utility model;

FIG. 4 is a schematic view of a polishing assembly according to a first embodiment of the present utility model;

FIG. 5 is a schematic view of a length setting of a grinding assembly according to a first embodiment of the utility model;

fig. 6 is a schematic structural diagram of an example one of a second embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an example two in a second embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: fixed structure 1, location structure 2, hole 3 that waits to polish, magnetic force seat 5, support frame 6, base 61, connecting block 62, centre gripping arm 63, upper arm 601, lower arm 602, mounting hole 603, product 7, structure 8 polishes, polishing subassembly 9, pole 91 polishes, polishes head 92, power access 93, slip subassembly 10, slide rail assembly 11, location platform 21, locating hole 22, pillar 23, fixed orifices 101, spacing hole 102, magnetic switch 13.

Example 1

This embodiment is basically as shown in fig. 1: a metal hole finishing device comprises a fixing structure 1, a positioning structure 2 and a polishing structure 8. Fixed knot constructs 1 fixed mounting in the surface of waiting to polish hole product 7 to be located one side of waiting to polish hole 3, and location structure 2 installs in waiting to polish hole 3 directly over, installs on location structure 2 and polishes structure 8, polishes structure 8 and fixed knot structure 1 swing joint, makes the structure 8 lower extreme just wait to polish hole 3, and the pole 91 that polishes in external power input polishing structure 8 drives polishing head 92 rotatory while through personnel's operation polishing pole 91 in polishing structure 8 drive polishing head 92 reciprocates and wait to polish hole 3 and finish polishing.

Specifically, as shown in fig. 2, the fixing structure 1 includes a magnetic base 5 having a square structure as a whole and a supporting frame 6 connected above the magnetic base 5 by bolts. In this embodiment, be provided with magnetic force switch 13 on the magnetic force seat 5, open magnetic force seat 5 through magnetic force switch 13, make it adsorb on the product surface through magnetic force to fix the position of finishing device, improve stability.

A support frame 6 is mounted on the magnetic base 5, and the support frame 6 includes a base 61, a connecting block 62 and a clamping arm 63 which are integrally formed. Wherein, base 61 is through the screw hole fixed mounting at both ends on magnetic seat 5, ensures the stability of support frame 6, and connecting block 62 is located perpendicularly on base 61, is equipped with centre gripping arm 63 in one side of connecting block 62, makes centre gripping arm 63 reach required height and position through base 61 and connecting block 62, makes centre gripping arm 63 can be stable place on location structure 2. In this embodiment, the clamping arm 63 includes an upper arm 601 and a lower arm 602, one end of which is connected to form a U-shaped structure, mounting holes 603 are correspondingly formed in the upper arm 601 and the lower arm 602, and the sliding rail assembly 11 is mounted through the mounting holes 603, so that the lower arm 602, the sliding rail assembly 11 and the upper arm 601 are fixedly placed on the positioning structure 2, and stability and accuracy during polishing are ensured.

Specifically, as shown in fig. 3, the positioning structure 2 includes a positioning table 21 with a circular structure, a positioning hole 22 is formed in the center of the positioning table 21, a plurality of struts 23 are fixedly connected to the lower end of the positioning table 21 through bolts, and the struts 23 are fixedly mounted on the surface of the product 7 through bolts, so that the positioning hole 22 can be located right above the hole 3 to be polished. The struts 23 are arranged according to the position of the hole 3 to be polished and the structure of the product, in this embodiment, 4 struts 23 are arranged and respectively fixed around the hole 3 to be polished.

A sanding structure 8 is mounted on the positioning structure 2. The sanding structure 8 includes a sanding assembly 9 and a sliding assembly 10.

Specifically, as shown in connection with fig. 4, the sharpening assembly 9 includes a sharpening lever 91, a sharpening head 92, and a power access end 93. Wherein the grinding rod 91 passes through the positioning hole 22 on the positioning table 21 and can flexibly move up and down in the positioning hole 22. A polishing head 92 is fixedly arranged at the lower end of the polishing rod 91, the polishing head 92 is positioned below the positioning table 21 and is opposite to the hole 3 to be polished, and the position of the polishing head 92 can be controlled by operating the movement of the polishing rod 91, so that the hole 3 to be polished is polished and finished. Meanwhile, in the embodiment, the polishing rod 91 and the polishing head 92 can be replaced at any time according to polishing requirements so as to adapt to various polishing environment requirements, meanwhile, stability between the polishing rod 91 and the polishing head 92 is guaranteed, accuracy of the whole polishing process is improved, and replacement operation is simple and convenient, and the application range is wider and more flexible.

A power access end 93 is designed at the upper end of the grinding rod 91, and external power is connected to the grinding assembly 9 through the power access end 93. In this embodiment, the external power may be provided to power the sharpening assembly 9 by clamping a self-contained power chuck on the external power input device to the power access end 93. The external power can select air pressure, a small handheld motor, manual clamping rotation and the like according to actual polishing requirements, so that the polishing head 92 rotates according to the requirements, the controllability of polishing force is improved, and the universality of the finishing device is further improved, so that the application of various complex production environments is met. Meanwhile, according to different power of the connection, the clamping length of the power connection end 93 is correspondingly changed so as to adapt to various power inputs.

Specifically, in this embodiment, the sliding assembly 10 is a T-shaped block, a fixing hole 101 is formed in the front end of the T-shaped block, and the polishing rod 91 is set at a clamping length position according to polishing requirements, and is fixedly mounted on the T-shaped block through the fixing hole 101, and drives the polishing rod 91 to move up and down through the sliding T-shaped block. Two limiting holes 102 are formed in the rear end of the T-shaped block, the T-shaped block is sleeved on the sliding rail assembly 11 through the limiting holes 102, the sliding assembly 10 can slide up and down along the sliding rail assembly 11, and in the embodiment, the sliding rail assembly 11 is two cylindrical sliding rails. The sliding assembly 10 can be controlled to be not deviated through the two sliding rails, so that stability and accuracy in moving the sliding assembly 10 are ensured, the polishing control accuracy is improved, and polishing control requirements of various metal holes are met.

The specific implementation process is as follows:

As shown in fig. 1 to 4, corresponding polishing rods 91 and polishing heads 92 are selected according to the positions of the holes 3 to be polished and the structure of the product, and the polishing rods 91 are passed through the positioning holes 22 of the positioning table 21 so that the polishing heads 92 are positioned below the positioning table 21. The positioning structure 2 is fixed on the surface of the product 7 through bolts, so that the positioning holes 22 and the polishing heads 92 are opposite to the upper side of the holes 3 to be polished. The fixing structure 1 is then placed on one side of the positioning structure 2 and the sanding rod 91 is passed through the fixing hole 101 of the T-block. The position of the fixing structure 1 is adjusted, so that the clamping arm 63 is stably placed on the positioning table 21, meanwhile, the magnetic seat 5 is ensured to be stably placed on the surface of the product 7, and the magnetic switch 13 is turned on, so that the magnetic seat 5 is stably adsorbed on the surface of the product 7. In order to ensure the stability of the device in the polishing process and the polishing precision.

After the installation is finished, polishing parameters are set according to the aperture of the hole 3 to be polished, the relative positions of the T-shaped blocks and the polishing rods 91 are fixed according to the polishing lengths of the polishing rods 91, the T-shaped blocks slide to the uppermost ends to be attached to the lower surfaces of the upper arms 601 of the clamping arms 63, the relative positions of the polishing rods 91 are fixed, the positions of the power access ends 93 capable of being clamped are reserved, then the power source required by the power access ends 93 capable of being clamped through the corresponding power chucks is accessed, after the polishing heads 92 rotate, polishing operations are gradually performed by controlling the polishing rods 91 to move up and down through flexible operation according to the set polishing parameters, and then metal hole finishing is achieved.

In this embodiment, the length of the polishing rod 91 is set as shown in fig. 5, where a is the height from the upper plane of the lower arm 602 to the plane of the hole 3 to be polished, b is the maximum depth of the hole 3 to be polished, i.e. the effective polishing maximum depth of the polishing head 92, c is the thickness of the T-shaped block, and d is the required clamping length of the power chuck. The total length of the grinding bar 91=a+b+c+d and the width of the clamp arm 63=b+c. So as to meet the finishing requirements, ensure the polishing precision and reduce the polishing control difficulty. In actual polishing, the hole depth can be not polished to the limit of the travel of the polishing head, for example, the hole depth is required to be 30+/-2 mm, although the maximum hole depth of the polishing head can be polished to be 32, when the actual hole depth is 29.5mm, the polishing head is polished to the bottom of the hole and then polished downwards to 29.5-29.7mm, and the polishing head has certain visible light and back chipping effects.

In this embodiment, the diameter of the polishing head 92 is selected according to the aperture of the hole 3 to be polished, and is generally set according to the actual maximum diameter of the hole 3 to be polished, in this embodiment, the diameter of the polishing head 92 is 0.1-0.3 times larger than the actual maximum aperture by a tolerance range, but not more than the allowable maximum aperture, so that the size, roundness and surface roughness of the trimming hole are achieved, and the grinding amount is reduced, thereby improving the service life of the polishing head.

Specifically, if the pore diameter is required to be 32.25 plus or minus 0.05mm, the allowable pore diameter range is 32.20-23.30mm, the tolerance range is 0.1mm, if the actual pore diameter maximum value is 32.24mm, the diameter of the finishing grinding head can be selected to be 32.25-32.27mm, but when the pore diameter maximum value is 32.28mm, the diameter of the finishing grinding head is recommended to be 32.29-32.30mm.

When the aperture requirement is 32+/-0.5 mm, the allowable diameter range of the hole is 31.5-32.5mm, the tolerance range is 1mm, if the actual aperture maximum value is 32.1mm, the diameter of the finishing grinding head is recommended to be 32.2-32.4, but when the aperture maximum value is 32.28mm, the diameter of the finishing grinding head is recommended to be 32.29-32.30mm. So as to meet the finishing requirement, meet the finishing effect, reduce the grinding quantity, prolong the service life and reduce the production cost.

In this embodiment, the power source may be pneumatically powered, a small manual motor powered, and a manual clamping powered. The pneumatic power input rotating speed is high, the rotating direction is fixed, the stability is high, and the pneumatic power grinding machine is applicable to grinding the aperture with a large tolerance range value (more than 1 mm). The power input of the small manual motor is adjustable in rotation direction and rotation speed, the input power is stable, and the small manual motor is applicable to polishing the aperture with a smaller tolerance range value (the range value is 0.2-1 mm). The manual clamping power input flexibility is high, and because the power input is smaller, the rotating speed and the rotating direction can be adjusted according to the real-time condition, and the manual clamping power input mechanism is suitable for polishing high-precision holes with small tolerance range values (within 0.2 mm). The power source can be flexibly selected according to polishing requirements of different holes, so that various complex production environments are met, and the universality and practicality of the finishing device are improved.

Example two

Unlike the first embodiment, the positioning structure and the fixing structure may be changed and adjusted in size according to the product structure.

As shown in fig. 6, the positioning structure 2 is adjusted according to the product structure and the position of the holes to be drilled. The positioning of the four support posts 23 is changed into the positioning of the three support posts 23 through bolts, and the bottom of one support post 23 is thickened according to the product step structure so as to adapt to the product step, thereby achieving the effects of stability and meeting the positioning requirement of the product during polishing.

Meanwhile, according to the product structure, the fixing structure 1 is adjusted, the height of the base 61 is thickened under the condition that the magnetic seat 5 is not changed, so that the clamping arm 63 can be placed on the positioning table 21, and meanwhile, according to the calculation formula of the width of the clamping arm 63 in the first embodiment, the width of the clamping arm 63 is lengthened to adapt to the protruding width of the product step and the hole position.

In another embodiment, as shown in fig. 7, the positioning structure 2 is adjusted according to the structure of the product and the type of the hole 3 to be polished, and as shown in fig. 7, the shape of the four support posts 23 is changed and lengthened according to the structure, and the support posts 23 are positioned by using positioning pins when the finishing hole is surrounded by a light hole.

The fixing structure 1 is adjusted, the size and the thickness of the base 61 are reduced under the condition that the magnetic seat 5 is not changed, the base can be attached to the special-shaped surface of the product 7, meanwhile, the length of the connecting block 62 is increased, the structure shape of the lower part of the connecting block 62 is improved, the connecting block 62 can be located beside the special-shaped structure of the product after being shortened, the upper part of the connecting block 62 can be located above the special-shaped structure of the product, the clamping arm 63 and the positioning structure 2 are mutually matched, and therefore the polishing rod 91 is convenient to flexibly control and move without being influenced by the structure of the product, and the universality and the practicability of the finishing device are improved.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. The utility model provides a metal hole finishing device which characterized in that: the polishing device comprises a fixing structure and a positioning structure, wherein the fixing structure is arranged on one side of a hole to be polished, and the positioning structure is arranged above the hole to be polished; the fixing structure comprises a magnetic seat and a supporting frame, the magnetic seat is arranged on the surface of the product, and the supporting frame is arranged above the magnetic seat; the positioning structure is provided with a polishing structure, and the polishing structure comprises a polishing assembly and a sliding assembly; the upper end of the polishing assembly is externally connected with a power input source, and the lower end of the polishing assembly passes through the positioning structure to be contacted with a hole to be polished; the sliding component is arranged on the polishing component and is movably arranged on the supporting frame.

2. The metal hole finishing device of claim 1, wherein: the support frame is including locating base on the magnetic force seat is equipped with the connecting block on the base, is equipped with the centre gripping arm in connecting block one side, the centre gripping arm is located on the location structure.

3. A metal hole finishing device according to claim 2, wherein: the clamping arm comprises an upper arm and a lower arm which are of U-shaped structures, and a sliding rail assembly is arranged between the upper arm and the lower arm; the sliding component is movably arranged on the sliding rail component.

4. A metal hole finishing device according to claim 3, wherein: the positioning structure comprises a positioning table, a positioning hole is formed in the positioning table, the positioning hole is located right above a hole to be polished, and the polishing assembly penetrates through the positioning hole; and a plurality of struts are arranged below the positioning table and are arranged around the holes to be polished.

5. The metal hole finishing device of claim 4, wherein: the polishing assembly comprises a polishing rod, a polishing head and a power access end; the polishing rod passes through the positioning hole, and the polishing head is arranged at the lower end of the polishing rod and below the positioning table, so that the polishing head is suspended above the hole to be polished; the power access end is arranged at the upper end of the polishing rod and is externally connected with a power input source.

6. The metal hole finishing device of claim 5, wherein: the sliding assembly comprises a T-shaped block, a fixing hole is formed in the front end of the T-shaped block, and the polishing rod is arranged on the T-shaped block through the fixing hole; the rear end of the T-shaped block is provided with a limiting hole, and the T-shaped block is movably arranged on the sliding rail assembly through the limiting hole.

7. A metal hole finishing device according to claim 3, wherein: the sliding rail assembly comprises two circular rails; the clamping arm is provided with a mounting hole, and the circular rail is positioned through the mounting hole.

8. The metal hole finishing device of claim 5, wherein: the grinding head diameter is 0.1-0.3 times larger than the actual maximum aperture of the hole to be ground by a tolerance range value, but does not exceed the allowable maximum aperture.

9. A metal hole finishing device according to claim 3, wherein: width of the clamping arm = maximum hole depth + slide assembly thickness.

10. The metal hole finishing device of claim 1, wherein: and a magnetic switch is also arranged on the magnetic seat.