CN220660748U

CN220660748U - Drilling machine spindle reset spring mounting tool

Info

Publication number: CN220660748U
Application number: CN202321995236.4U
Authority: CN
Inventors: 刘金旺
Original assignee: Yunnan Yuxi Technician College
Current assignee: Yunnan Yuxi Technician College
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-03-26
Anticipated expiration: 2033-07-27

Abstract

The utility model provides a drilling machine spindle return spring mounting tool, which relates to the technical field of component structural features and accessories of the components specially applied to a drilling machine, and mainly aims to solve the problems that no special bench drill return spring replacement tool exists in the market at present and the replacement is labor-consuming, and the bench drill return spring mounting tool specifically comprises a connecting rod (1), a twisted rod (2), a spring mounting disc (3) and a circular ring (4) with a rectangular longitudinal section arranged at the other end corresponding to the end part of a rod body of the connecting rod (1); the tool can simplify the installation operation of the reset spring, can rapidly and accurately complete the disassembly of the spring installation disc (3) and the clamping of the outer hook and the inner hook of the scroll spring, and further drives the screwdriver on the inner layer of the connecting rod (1) to rotate through the twisted rod (2), the spring installation disc (3) is fixed on the handle rotating shaft, the tool can easily complete the installation or replacement of the reset spring of the handle on the bench, and the tool does not need larger operation space any more, and is time-saving and labor-saving.

Description

Drilling machine spindle reset spring mounting tool

Technical Field

The utility model relates to the technical field of component structural features and accessories of drilling machines, in particular to a drilling machine spindle return spring mounting tool.

Background

The bench drill is a bench drill for short, and can be placed on an operation table, and the main shaft of the bench drill is vertically arranged. The main shaft is changed in speed by changing the position of the V-belt on the tower-type belt wheel, and the main shaft is fed by rotating the feeding handle. The bench drill has the advantages of high flexibility, high rotating speed, high production efficiency and convenient use, is one of the common equipment in the parts processing, assembling and repairing work, and is mainly used for processing various holes on small workpieces, and the bench drill is most used in bench workers; and the operation is simple, and the machine tool is also a first-choice device for entering teaching when a plurality of professional technical schools carry out mechanical processing professional courses, so that the machine tool is popular with students because of quick attendance and high safety.

The main shaft of the bench drill runs downwards to perform punching operation, a handle connecting gear arranged on the side surface of the main shaft shell is meshed with jumping teeth on the side wall of the main shaft, and the handle is rotated to drive the gear, so that the main shaft is driven to move downwards; the main shaft needs to return in the original way after the downward movement is finished, namely, the main shaft rises and resets, and when the main shaft moves downwards, the main shaft runs smoothly under the action of gravity; however, when the punching is completed and the spindle is reset, the resistance to be overcome is larger; therefore, the existing bench drill is provided with a scroll spring as a return spring at the other side of the shell opposite to the handle and is connected with the handle rotating shaft; when the main shaft descends, the reset spring is opened under the action of the handle rotating shaft, so that shrinkage force is generated, and when the main shaft ascends, the main shaft rotating shaft is driven to rotate under the action of the shrinkage force of the reset spring, so that an operator is assisted to reset the handle, and the labor intensity of the operator is reduced.

In normal machining plants, the return spring failure rate of the bench drill is low, essentially without replacement during its normal service life. However, in the teaching activities of schools, as new students do not have any operation experience, in the practical operation bench drill process, the operation of the handle often exceeds the upper limit and the lower limit of the bench drill, and long time, the reset spring is subjected to plastic deformation, so that the tension and the contraction force of the reset spring are greatly reduced and even lost, the reset spring must be frequently replaced, but no special bench drill reset spring replacing tool is available on the market at present, so that two people can simultaneously cooperate when in replacement, the two people can respectively clamp the inner end and the outer end of the main scroll spring by using the tip pliers, and then the main scroll spring is respectively clamped in place, but the problem that the scroll spring is scattered and scrapped due to the fact that the cooperation is not in place often occurs.

In view of the above, the application provides a special tool capable of rapidly and normally completing replacement and installation of the bench drill spindle reset spring, can assist teaching personnel to conveniently complete the work, and has remarkable help for maintenance and repair transactions of teaching tools such as bench drills used in teaching occasions.

Disclosure of Invention

In order to solve the problems noted in the background art, the utility model provides a drilling machine spindle return spring mounting tool.

The utility model adopts the following technical scheme: the utility model provides a drilling machine main shaft reset spring mounting tool for change the installation to the reset spring on the drilling machine main shaft, its characterized in that: comprises a connecting rod 1, a twisting rod 2 and a spring mounting disc 3; the diameter of the upper end head part of the connecting rod 1 is larger than that of the rod body part, a round hole in the horizontal direction is formed in the middle part of the end head part, the winch rod 2 passes through the round hole and is vertically connected with the connecting rod 1, and the winch rod 2 can slide in the round hole;

the spring mounting plate 3 is connected with the bottom end of the connecting rod 1 and comprises a raised shaft sleeve 3-1 part and a cover plate 3-2 at the lower side, the raised shaft sleeve 3-1 part and the cover plate 3-2 are coaxially connected, the central part is provided with a shaft hole of a handle rotating shaft, the other side of the cover plate 3-2 opposite to the shaft sleeve 3-1 is provided with a clamp spring seat 3-3 coaxial with the shaft sleeve 3-1, and the side wall of the clamp spring seat is provided with a penetrating inner clamping groove 3-4; in addition, two blind holes 3-5 which are symmetrically arranged relative to the center of the shaft hole are arranged between the inner diameter and the outer diameter of the shaft sleeve 3-1, and locking pins 3-6 of the handle rotating shaft are arranged on the side wall of the shaft sleeve 3-1;

the other end corresponding to the end part of the rod body of the connecting rod 1 is provided with a circular ring 4 with a rectangular longitudinal section, the inner diameter of the circular ring 4 is consistent with the connecting rod 1 and is fixedly connected with the connecting rod 1, and the outer diameter of the circular ring 4 is larger than the outer diameter of the upper shaft sleeve 3-1 of the spring mounting disc 3 and smaller than the outer diameter of the cover plate 3-2; two through holes 4-1 are symmetrically arranged on the ring body between the inner diameter and the outer diameter of the ring 4 relative to the center of the ring 4, the positions of the two through holes 4-1 are opposite to the positions of two blind holes 3-5 on the shaft sleeve 3-1 of the spring mounting disc 3, and a connecting member capable of connecting the spring mounting disc 3 and the ring 4 into a whole is arranged in the two through holes 4-1.

Preferably, the rod body of the connecting rod 1 comprises an inner layer and an outer layer, wherein the inner layer is a solid cylinder 1-1, the top end of the cylinder 1-1 is fixed at the center part of the lower side surface of the end part of the connecting rod 1, and the end part of the bottom end of the cylinder 1-1 is provided with a tool bit 1-2 of a screwdriver; the outer layer of the rod body of the connecting rod 1 is a hollow cylinder 1-3 with the inner diameter larger than the inner diameter, the top end of the hollow cylinder 1-3 is clamped with the outer edge part of the lower side surface of the end head of the connecting rod 1, and an elastic part 1-4 is arranged between the top end of the hollow cylinder 1-3 and the lower side surface of the end head of the connecting rod 1 to support, so that a structure which can rotate along the same axis and be axially connected together is formed.

Preferably, the bottom end of the hollow cylinder 1-3 on the outer layer of the connecting rod 1 is connected with a circular ring 4, the inner diameter of the circular ring 4 is identical with the inner diameter of the hollow cylinder 1-3 and is fixedly connected with the hollow cylinder 1-3, two through holes 4-1 are formed in the circular ring 4, and a connecting member capable of connecting the spring mounting disc 3 and the circular ring 4 into a whole is arranged.

Preferably, countersunk screws 4-2 are respectively arranged in the two through holes 4-1 on the circular ring 4, and an anti-drop check ring is arranged and connected with the two blind holes 3-5 arranged on the shaft sleeve 3-1 of the spring mounting disc 3, so that the spring mounting disc 3 and the circular ring 4 can be connected into a whole and taken out.

Preferably, two through holes 4-1 on the ring 4 are respectively provided with a bar-shaped magnet 4-3, and an anti-drop retainer ring is provided, so that two blind holes 3-5 arranged on the shaft sleeve 3-1 of the spring mounting disc 3 can be adsorbed, and the spring mounting disc 3 and the ring 4 are connected into a whole and taken out.

Preferably, the screwdriver bit 1-2 arranged at the bottom end part of the solid cylinder 1-1 at the inner layer of the rod body of the connecting rod 1 is in a straight shape or a cross shape.

Through the technical scheme, the drilling spindle return spring mounting tool provided by the utility model can simplify the return spring mounting operation, and can complete the disassembly of the spring mounting disc 3 and the clamping of the outer hook and the inner hook of the scroll spring by only one person, so that the screw driver on the inner layer of the connecting rod 1 is driven to rotate by the winch rod 2, and the plug screw in the shaft sleeve 3-1 on the spring mounting disc 3 is screwed. Therefore, the installation tool of the drilling machine spindle return spring can easily complete installation or replacement of the drilling machine, particularly the return spring of the bench turning handle, and does not need larger operation space, thereby saving time and labor.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

Fig. 1 is a schematic front view of the installation tool of example 1.

Fig. 2 is a cut-away view of fig. 1.

Fig. 3 is a schematic front view of the installation tool of example 2.

Fig. 4 is a cut-away view of fig. 3.

Fig. 5 is a partial enlarged view of fig. 4.

In the figure, a connecting rod 1, a cylinder 1-1, a cutter head 1-2, a hollow cylinder 1-3, an elastic component 1-4, a twisted rod 2, a spring mounting disc 3, a shaft sleeve 3-1, a cover plate 3-2, a clamp spring seat 3-3, an inner clamping groove 3-4, a blind hole 3-5, a locking pin 3-6, a circular ring 4, a through hole 4-1, a countersunk head screw 4-2 and a bar magnet 4-3.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

Example 1

With reference to the drawings, the embodiment describes a tool for installing a return spring of a drilling machine spindle, which is used for replacing and installing the return spring on the drilling machine spindle, and specifically comprises a connecting rod 1, a winch rod 2 and a spring installation disc 3; the diameter of the upper end head part of the connecting rod 1 is larger than that of the rod body part, a round hole in the horizontal direction is formed in the middle part of the end head part, the winch rod 2 passes through the round hole and is vertically connected with the connecting rod 1, and the winch rod 2 can slide in the round hole; the spring mounting plate 3 is connected with the bottom end of the connecting rod 1 and comprises a raised shaft sleeve 3-1 part and a cover plate 3-2 at the lower side, the raised shaft sleeve 3-1 part and the cover plate 3-2 are coaxially connected, the central part is provided with a shaft hole of a handle rotating shaft, the other side of the cover plate 3-2 opposite to the shaft sleeve 3-1 is provided with a clamp spring seat 3-3 coaxial with the shaft sleeve 3-1, and the side wall of the clamp spring seat is provided with a penetrating inner clamping groove 3-4; in addition, two blind holes 3-5 which are symmetrically arranged relative to the center of the shaft hole are arranged between the inner diameter and the outer diameter of the shaft sleeve 3-1; the other end corresponding to the end part of the rod body of the connecting rod 1 is provided with a circular ring 4, the inner diameter of the circular ring 4 is consistent with that of the connecting rod 1 and is fixedly connected with the connecting rod 1, and the outer diameter of the circular ring 4 is larger than the outer diameter of the shaft sleeve 3-1 part on the spring mounting disc 3 and smaller than the outer diameter of the cover plate 3-2 part; two through holes 4-1 are symmetrically arranged on the ring body between the inner diameter and the outer diameter of the ring 4 relative to the center of the ring 4, the positions of the two through holes 4-1 are opposite to the positions of two blind holes 3-5 on the shaft sleeve 3-1 of the spring mounting disc 3, and a connecting component capable of connecting the spring mounting disc 3 and the ring 4 into a whole is arranged in the two through holes 4-1; the connecting component is countersunk screws 4-2 arranged in two through holes 4-1 on the circular ring 4 and is provided with an anti-drop check ring, and the countersunk screws are connected with two blind holes 3-5 arranged on a shaft sleeve 3-1 of the spring mounting disc 3, so that the spring mounting disc 3 and the circular ring 4 can be connected into a whole and taken out.

In a normal use state, the spring mounting disc 3 is separated from the circular ring 4 and is fixed on the outer side of the reset spring; when the bench drill handle is required to be replaced, firstly, removing plug screws in a shaft sleeve 3-1 on a spring mounting disc 3 connected with a bench drill handle rotating shaft, then, integrally fastening a bottom circular ring 4 of the mounting tool on the spring mounting disc 3, enabling two through holes 4-1 on the circular ring 4 to be opposite to two blind holes 3-5 on the shaft sleeve 3-1, installing countersunk screws 4-2 in the through holes 4-1, screwing the countersunk screws into the blind holes 3-5, pulling a twisted rod 2 and a connecting rod 1, and integrally taking out the spring mounting disc 3; then removing the damaged and failed spiral spring, selecting a new spiral spring with matched diameters, keeping the outer hoop of the new spiral spring intact, integrally placing the new spiral spring into a mounting seat of a reset spring, sleeving a round hole in the middle of the new spiral spring into the end part of a handle rotating shaft, clamping an outer hook of the spiral spring into an outer clamping groove on the side wall of the mounting seat, cutting off the outer hoop of the spiral spring, aligning a spring mounting disc 3 connected with a mounting tool together with the mounting seat, penetrating the handle rotating shaft into a central hole of the spring mounting disc 3, simultaneously clamping an inner hook of the spiral spring into an inner clamping groove 3-4 of a clamping spring seat 3-3 on the lower side of the spring mounting disc 3, integrally pressing the new spiral spring, taking out countersunk screws 4-2 in two through holes 4-1 on a circular ring 4 on the lower side of the mounting tool, separating the spring mounting disc 3 from the circular ring 4, and finally mounting plug screws in a shaft sleeve 3-1 on the spring mounting disc 3 to screw down to complete the mounting of the reset spring.

Example 2

With reference to the figures, this embodiment describes a drilling spindle return spring installation tool, which differs from embodiment 1 in that: the rod body of the connecting rod 1 comprises an inner layer and an outer layer, wherein the inner layer is a solid cylinder 1-1, the top end of the cylinder 1-1 is fixed at the central part of the lower side surface of the end part of the connecting rod 1, and the end part of the bottom end of the cylinder 1-1 is provided with a tool bit 1-2 of a screwdriver; the outer layer of the rod body of the connecting rod 1 is a hollow cylinder 1-3 with the inner diameter larger than that of the inner layer, the top end of the hollow cylinder 1-3 is clamped with the outer edge part of the lower side surface of the end part of the connecting rod 1, and an elastic part 1-4 is arranged between the top end of the hollow cylinder 1-3 and the lower side surface of the end part of the connecting rod 1 to support, so that a structure which can mutually rotate along the same axis and are axially connected together is formed; the bottom end of the hollow cylinder 1-3 on the outer layer of the connecting rod 1 is connected with a circular ring 4, the inner diameter of the circular ring 4 is identical with the inner diameter of the hollow cylinder 1-3 and is fixedly connected with the hollow cylinder 1-3, two through holes 4-1 are formed in the circular ring 4, and a connecting member capable of connecting the spring mounting disc 3 and the circular ring 4 into a whole is arranged; the connecting component is a rod-shaped magnet 4-3 arranged in two through holes 4-1 on the circular ring 4 and is provided with an anti-drop check ring, and the connecting component can adsorb two blind holes 3-5 arranged on the shaft sleeve 3-1 of the spring mounting disc 3, and the spring mounting disc 3 and the circular ring 4 are connected into a whole and taken out.

In a normal use state, the spring mounting disc 3 is separated from the circular ring 4 and is fixed on the outer side of the reset spring; when the screw driver needs to be replaced, firstly, the inner layer structure of a connecting rod 1 in an installation tool, namely a screw driver bit 1-2 at the bottom end of a solid cylinder 1-1 is aligned with a plug screw in an upper shaft sleeve 3-1 of a spring installation disc 3, then a rod-shaped magnet 4-3 is arranged in two through holes 4-1 on a circular ring 4 at the lower side of the installation tool and is connected with two blind holes 3-5 on the shaft sleeve 3-1 of the spring installation disc 3, a winch rod 2 is rotated to drive a screw driver at the inner layer of the connecting rod 1 to rotate, the plug screw in the upper shaft sleeve 3-1 of the spring installation disc 3 is screwed down, the spring installation disc 3 is connected to the installation tool to be integrally taken down, then a damaged scroll spring with a failure is removed, a new scroll spring with a matched diameter is selected, the whole outer hoop is kept, the whole body of the scroll spring is placed into an installation seat of a reset spring, a round hole in the middle is sleeved at the end part of a handle rotating shaft, then the outer hook of the scroll spring is clamped into an outer clamping groove on the side wall of the installation seat, the outer hoop of the scroll spring is sheared off, then the spring installation disc 3 connected with the installation tool is aligned with the installation seat, the handle 3 penetrates into the installation seat, the handle is penetrated into the center of the spring installation disc 3 and the rotating shaft 3 and is clamped into the whole clamping groove 3, and clamped into the inner shaft 3 clamping groove 3; and (3) rotating the twisting rod 2 again to drive a screwdriver at the inner layer of the connecting rod 1 to rotate, screwing a plug screw in the shaft sleeve 3-1 on the spring mounting disc 3, and finally taking out the rod-shaped magnets 4-3 in the two through holes 4-1 on the circular ring 4 at the lower side of the mounting tool, so that the spring mounting disc 3 is separated from the circular ring 4, and the mounting of the reset spring is completed.

Claims

1. The utility model provides a drilling machine main shaft reset spring mounting tool for change the installation to the reset spring on the drilling machine main shaft, its characterized in that: comprises a connecting rod (1), a twisting rod (2) and a spring mounting disc (3); the diameter of the upper end head part of the connecting rod (1) is larger than that of the rod body part, a round hole in the horizontal direction is formed in the middle part of the end head part, the winch rod (2) passes through the round hole to be vertically connected with the connecting rod (1), and the winch rod (2) can slide in the round hole;

the spring mounting disc (3) is connected with the bottom end of the connecting rod (1), comprises a raised shaft sleeve (3-1) part and a cover plate (3-2) at the lower side, and is coaxially connected with the shaft sleeve, the central part is provided with a shaft hole of a handle rotating shaft, the other side of the cover plate (3-2) opposite to the shaft sleeve (3-1) is provided with a clamp spring seat (3-3) coaxial with the shaft sleeve (3-1), and the side wall of the clamp spring seat is provided with a penetrating inner clamping groove (3-4); in addition, two blind holes (3-5) which are symmetrically arranged relative to the center of the shaft hole are arranged between the inner diameter and the outer diameter of the shaft sleeve (3-1), and locking pins (3-6) of the handle rotating shaft are arranged on the side wall of the shaft sleeve 3-1;

the other end corresponding to the end part of the rod body of the connecting rod (1) is provided with a circular ring (4) with a rectangular longitudinal section, the inner diameter of the circular ring (4) is consistent with the connecting rod (1) and is fixedly connected with the connecting rod (1), and the outer diameter of the circular ring (4) is larger than the outer diameter of the upper shaft sleeve (3-1) of the spring mounting disc (3) and smaller than the outer diameter of the cover plate (3-2); two through holes (4-1) are symmetrically arranged on the ring body between the inner diameter and the outer diameter of the ring (4) relative to the center of the ring (4), the positions of the two through holes (4-1) are opposite to the positions of two blind holes (3-5) on the shaft sleeve (3-1) of the spring mounting disc (3), and a connecting component capable of connecting the spring mounting disc (3) with the ring (4) into a whole is arranged in the two through holes (4-1).

2. The drilling spindle return spring mounting tool according to claim 1, wherein the rod body of the connecting rod (1) is divided into an inner layer and an outer layer, wherein the inner layer is a solid cylinder (1-1), the top end of the cylinder (1-1) is fixed at the central part of the lower side surface of the end part of the connecting rod (1), and the bottom end part of the cylinder (1-1) is provided with a tool bit (1-2) of a screwdriver; the outer layer of the rod body of the connecting rod (1) is a hollow cylinder (1-3) with the inner diameter larger than the inner diameter, the top end of the hollow cylinder (1-3) is clamped with the outer edge part of the lower side surface of the end head of the connecting rod (1) to form a structure capable of mutually rotating along the same axis and being connected together in the axial direction, an elastic part (1-4) is arranged between the top end of the hollow cylinder (1-3) and the lower side surface of the end head of the connecting rod (1) to support, the bottom end of the outer hollow cylinder (1-3) of the connecting rod (1) is connected with a circular ring (4), and the inner diameter of the circular ring (4) is identical with the inner diameter of the hollow cylinder (1-3) and is fixedly connected with the hollow cylinder (1-3).

3. The tool for installing the return spring of the drilling spindle according to claim 1, wherein countersunk screws (4-2) are respectively arranged in two through holes (4-1) in the circular ring (4), and an anti-drop retainer ring is arranged and connected with two blind holes (3-5) arranged on a shaft sleeve (3-1) of the spring installation disc (3), so that the spring installation disc (3) and the circular ring (4) can be connected into a whole and taken out.

4. The tool for installing the return spring of the drilling spindle according to claim 2, wherein countersunk screws (4-2) are respectively arranged in two through holes (4-1) in the circular ring (4), and an anti-drop retainer ring is arranged and connected with two blind holes (3-5) arranged on a shaft sleeve (3-1) of the spring installation disc (3), so that the spring installation disc (3) and the circular ring (4) can be connected into a whole and taken out.

5. The tool for installing the return spring of the drilling spindle according to claim 1, wherein two through holes (4-1) in the circular ring (4) are respectively provided with a bar-shaped magnet (4-3) and an anti-drop retainer ring, and the two blind holes (3-5) arranged on the shaft sleeve (3-1) of the spring installation disc (3) can be adsorbed, so that the spring installation disc (3) and the circular ring (4) are connected into a whole and taken out.

6. The tool for installing the return spring of the drilling spindle according to claim 2, wherein countersunk screws (4-2) are respectively arranged in two through holes (4-1) in the circular ring (4), and an anti-drop retainer ring is arranged and connected with two blind holes (3-5) arranged on a shaft sleeve (3-1) of the spring installation disc (3), so that the spring installation disc (3) and the circular ring (4) can be connected into a whole and taken out.

7. The tool for installing the return spring of the drilling spindle according to claim 2, 4 or 6, wherein the screwdriver bit (1-2) arranged at the bottom end part of the solid cylinder (1-1) in the rod body inner layer of the connecting rod (1) is in a straight shape or a cross shape.