CN212020351U

CN212020351U - Portable casting grinding machine

Info

Publication number: CN212020351U
Application number: CN202020555996.3U
Authority: CN
Inventors: 眭怀明; 李逸哲; 盛锟; 张为平
Original assignee: Yangzhou Fengming Photoelectric New Material Co ltd
Current assignee: Yangzhou Fengming Photoelectric New Material Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-27
Anticipated expiration: 2030-04-15

Abstract

The utility model relates to a portable casting grinding machine, which comprises an angle grinder, wherein the driving end of the angle grinder is provided with a round step, a driving shaft extends out of the center hole of the round step, a driving wheel is fixed on the driving shaft, a sleeve is fixed at the periphery of the round step, a thickening block is welded at the top of the sleeve, an air spring is installed on the thickening block, a pressure cylinder of the air spring is fixed on the thickening block through screws, the axis of the air spring is perpendicular to the axis of the driving shaft, a supporting head is fixed at the top of a piston rod of the air spring, supporting head support lugs extending forwards along the axis of the air spring are symmetrically arranged on two sides of the supporting head, a screw shaft is installed between the two supporting head support lugs, the axis of the screw shaft is parallel to the axis of the driving shaft, a bearing is installed on a polished rod section of the screw shaft between the two supporting head support lugs, the avoiding grooves are symmetrically positioned at two sides of the thickening block. The polishing machine is convenient to disassemble and assemble, and can conveniently polish the plane and the concave surface of a casting.

Description

Portable casting grinding machine

Technical Field

The utility model relates to a metal casting appurtenance, in particular to portable foundry goods polisher belongs to casting auxiliary assembly technical field, can be used to polishing of middle and small foundry goods.

Background

After the metal casting is formed and cooled, the outer surface of the metal casting needs to be polished; particularly, the polishing is very important for aluminum alloy and magnesium alloy castings with strict appearance requirements. At present, main equipment for polishing castings in a foundry is a fixed belt sander, a fixed grinder, an angle grinder, a pneumatic round head, a cone head grinder and the like, large castings cannot be polished by the fixed grinder, the surfaces of the large castings are polished by other polishing tools, the large castings are not ideal enough, and the concave surfaces of the castings are also difficult to polish by the existing polishing equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a portable foundry goods polisher, portable, easy dismounting conveniently polishes the plane and the concave surface of large-scale foundry goods.

In order to solve the technical problem, the utility model discloses a portable casting polisher, including the angle mill, the drive end of angle mill is equipped with circular step, and it has the drive shaft to stretch out in the centre bore of circular step, be fixed with the drive wheel in the drive shaft, the periphery of circular step is fixed with the sleeve pipe, the welding of sheathed tube top has the thickening piece, install the air spring on the thickening piece, the pressure cylinder of air spring passes through the fix with screw on the thickening piece, and the axis of air spring is perpendicular to the axis of drive shaft, and the piston rod top of air spring is fixed with the support head, the bilateral symmetry of support head is equipped with the support head journal stirrup that stretches out forward along the air spring axis, installs the screw shaft between two support head journal stirrups, the axis of screw shaft is on a parallel with the axis of drive shaft, the bearing is installed to the polished rod section that the screw shaft is located between, the drive wheel pass through the abrasive belt with bearing transmission is connected, the sleeve pipe is equipped with the groove of dodging that supplies the abrasive belt to pass through, dodge the both sides that the groove symmetry is located the thickening piece.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained: the drive shaft of angle mill drives the drive wheel rotatory, and the drive wheel passes through the emery cloth area and drives the epaxial bearing rotation of screw rod, and the both sides of emery cloth area pass in the sheathed tube groove of dodging, and it is rotatory to change into the parallel gyration of flat belt with the bistrique angle formula of traditional polisher. In the gyration in-process of emery belt, its long limit and driven end all can polish the plane of foundry goods, and the driven end of emery belt can polish the concave surface of foundry goods, and the plane of polishing out is level and smooth, and easy operation, convenient to use. The thickening block is used as a fixed seat of the air spring pressure cylinder, a thickening block screw hole is convenient to arrange, and the pressure cylinder can be fixed on the thickening block by screwing a screw in the thickening block screw hole through a bottom plate of the pressure cylinder; the tension of the air spring can automatically tension the abrasive belt, and the air spring has certain elasticity, so that the stability of continuous rotary polishing is ensured. The grinding machine is safe, practical, not easy to damage and convenient to disassemble.

As the improvement of the utility model, the sheathed tube root is equipped with T shape expansion joint, and the longitudinal joint at T shape expansion joint is on a parallel with the sheathed tube axis, and the both sides of longitudinal joint are equipped with the sleeve pipe journal stirrup respectively, have connect sleeve pipe clamping screw soon between two sleeve pipe journal stirrups. The T-shaped expansion joint provides a space for deformation, so that the root of the sleeve has certain elasticity, and the sleeve clamping screw is tightened to reduce the distance between the two sleeve support lugs, so that the root of the sleeve can be clamped on the circular step.

As a further improvement, the center welding of the support head has a support head nut, the top of the piston rod is screwed in the support head nut. So that the connection of the piston rod and the supporting head is very convenient.

Drawings

The invention will be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.

Fig. 1 is a front view of the portable casting polishing machine of the present invention.

Fig. 2 is a schematic view of fig. 1 with the abrasive belt detached.

Fig. 3 is a perspective view one of the cannula.

Fig. 4 is a perspective view of the second sleeve.

Fig. 5 is a perspective view of the support head.

In the figure: 1. an angle grinder; 2. a circular step; 3. a drive shaft; 4. a drive wheel; 5. a sleeve; 5a, avoiding a groove; 5 b.T-shaped expansion joint; 5c, supporting the sleeve; 5d, clamping a screw by using the sleeve; 6. thickening blocks; thickening block screw holes; 7a, a pressure cylinder; 7b, a piston rod; 8. a support head; supporting a head lug; 8b, supporting a head nut; 9. a screw shaft; 10. a bearing; 11. an abrasive belt.

Detailed Description

As shown in fig. 1 to 5, the portable casting polishing machine of the present invention comprises an angle grinder 1, a circular step 2 is disposed at a driving end of the angle grinder 1, a driving shaft 3 extends out of a center hole of the circular step 2, a driving wheel 4 is fixed on the driving shaft 3, a sleeve 5 is fixed at the periphery of the circular step 2, a thickening block 6 is welded at the top of the sleeve 5, an air spring is mounted on the thickening block 6, a pressure cylinder 7a of the air spring is fixed on the thickening block 6 through a screw, the axis of the air spring is perpendicular to the axis of the driving shaft 3, a support head 8 is fixed at the top of a piston rod 7b of the air spring, support head support heads 8 are symmetrically provided with support head support lugs 8a extending forward along the axis of the air spring at both sides, a screw shaft 9 is mounted between the two support head support lugs 8a, the axis of the screw shaft 9 is parallel to the axis of the driving shaft 3, a bearing 10 is, separate and fixed through the spacer between the bearing 10, drive wheel 4 passes through abrasive cloth area 11 and is connected with bearing 10 transmission, and sleeve pipe 5 is equipped with the groove 5a of dodging that supplies abrasive cloth area 11 to pass through, dodges the both sides that groove 5a symmetry lies in thickening piece 6.

The driving shaft 3 of the angle grinder 1 drives the driving wheel 4 to rotate, the driving wheel 4 drives the bearing 10 on the screw shaft 9 to rotate through the abrasive belt 11, two sides of the abrasive belt 11 penetrate through the avoidance groove 5a of the sleeve 5, and the grinding head angle type rotation of the traditional grinding machine is converted into parallel rotation of a flat belt. In the gyration in-process of emery belt 11, its long limit and driven end all can polish the plane of foundry goods, and the driven end of emery belt 11 can polish the concave surface of foundry goods, and the plane of polishing out is level and smooth, and easy operation, convenient to use. The thickened block 6 is used as a fixed seat of the air spring pressure cylinder 7a, a thickened block screw hole 6a is conveniently arranged, and the pressure cylinder 7a can be fixed on the thickened block 6 by screwing a screw into the thickened block screw hole 6a through a bottom plate of the pressure cylinder 7 a; the tension of the gas spring can automatically tension the abrasive belt 11, and the abrasive belt has certain elasticity, so that the stability of continuous rotary polishing is ensured. The grinding machine is safe, practical, not easy to damage and convenient to disassemble.

A supporting head nut 8b is welded at the center of the supporting head 8, and the top of the piston rod 7b is screwed in the supporting head nut 8b. So that the connection of the piston rod 7b with the support head 8 is facilitated.

The root of the sleeve 5 is provided with a T-shaped expansion joint 5b, the longitudinal joint of the T-shaped expansion joint 5b is parallel to the axis of the sleeve 5, sleeve support lugs 5c are respectively arranged at two sides of the longitudinal joint, and a sleeve clamping screw 5d is screwed between the two sleeve support lugs 5c. The T-shaped expansion joint 5b provides a space for deformation, so that the root of the sleeve 5 has certain elasticity, and the distance between the two sleeve support lugs 5c is reduced by tightening the sleeve clamping screw 5d, so that the root of the sleeve 5 can be clamped on the circular step 2.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a portable foundry goods polisher, includes the angle mill, the drive end of angle mill is equipped with circular step, and it has the drive shaft, its characterized in that to stretch out in the centre bore of circular step: be fixed with the drive wheel in the drive shaft, the periphery of circular step is fixed with the sleeve pipe, the welding of sheathed tube top has the thickening piece, install the air spring on the thickening piece, the pressure cylinder of air spring passes through the fix with screw on the thickening piece, and the axis of the axis perpendicular to drive shaft of air spring, and the piston rod top of air spring is fixed with supports the head, the bilateral symmetry of supporting the head is equipped with the support head journal stirrup that stretches out along the air spring axis forward, installs the screw shaft between two support head journal stirrups, the axis of screw shaft is on a parallel with the axis of drive shaft, the bearing is installed to the polished rod section that the screw shaft is located between two support head journal stirrups, the drive wheel pass through the abrasive belt with bearing transmission connects, the sleeve pipe is equipped with the groove of dodging that supplies the abrasive belt to pass through, dodge the both sides that the.

2. The portable casting sander of claim 1, wherein: the root of the sleeve is provided with a T-shaped expansion joint, the longitudinal joint of the T-shaped expansion joint is parallel to the axis of the sleeve, sleeve support lugs are respectively arranged on two sides of the longitudinal joint, and a sleeve clamping screw is screwed between the two sleeve support lugs.

3. The portable casting sander of claim 1 or 2, wherein: the center of the support head is welded with a support head nut, and the top of the piston rod is screwed in the support head nut.