CN219484932U

CN219484932U - Lead screw centre bore locating rack

Info

Publication number: CN219484932U
Application number: CN202320163895.5U
Authority: CN
Inventors: 孙桂生; 王志喜
Original assignee: Ningbo Shikaifu Precision Transmission Technology Co ltd
Current assignee: Ningbo Shikaifu Precision Transmission Technology Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-08-08
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to the technical field of screw rod machining and discloses a screw rod center hole positioning frame which comprises a mounting seat, wherein a fixing seat is connected to the outer side of the mounting seat, a slot is formed in the side part of the fixing seat, a screw rod is arranged on the inner side of the mounting seat, a motor is arranged on the outer side of the mounting seat and is in transmission connection with the screw rod, a screw sleeve is screwed on the outer side of the screw rod, and a clamping sleeve is arranged on the outer side of the screw sleeve; insert the slot with the one end of lead screw for the lead screw is fixed in the fixing base lateral part, drives the lead screw through the setting of motor and rotates in the mount pad, makes the silk cover be close to each other along the lead screw, thereby makes the lead screw by pressing from both sides the further fixed centre gripping of cover, makes the lead screw be difficult to the skew, thereby makes the location effect better, solves when punching the centre bore to the lead screw as far as, and the lead screw atress is great, however, current locating rack lacks further fixed structure to the lead screw, and the lead screw takes place the skew easily, makes the not good problem of location effect.

Description

Lead screw centre bore locating rack

Technical Field

The utility model relates to the technical field of screw rod machining, in particular to a screw rod center hole positioning frame.

Background

The screw rod, namely the ball screw rod, is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, and consists of a screw rod and a nut, and the screw rod has the function of converting rotary motion into linear motion, which is the further extension and development of the ball screw, and the important significance of the development is that a bearing is changed into sliding motion from rolling motion, and the screw rod is widely applied to various industrial equipment and precise instruments due to small friction resistance.

The center hole is a process hole for determining the center of a workpiece, and most shaft parts are provided with the center hole, and the center hole mainly has two functions: 1. when the screw rod is used as a positioning reference of a workpiece, the dead weight and the cutting force of the workpiece are born, the end part of the screw rod is required to be drilled with a center hole, when the screw rod is drilled with the center hole, four screw rods are required to be fixed on a positioning frame, the center point of the end part of the screw rod is aligned with a drill bit, and then the drill bit is used for drilling.

At present, the existing locating rack is usually provided with a fixed base which is positioned at the same horizontal line with the drill bit, one end of a screw rod is inserted into the jack, and then the drill bit is used for carrying out the operation of punching a center hole on the screw rod, however, when the center hole is punched on the screw rod, the screw rod is stressed greatly, a structure for fixing the screw rod is lacking, the screw rod is easy to deviate, and the locating effect is poor; therefore, the existing requirements are not met, and a screw rod center hole locating frame is provided.

Disclosure of Invention

The utility model provides a screw rod center hole locating rack, which has the beneficial effects that the existing locating rack in the background technology is solved, the existing locating rack is usually provided with a fixed base which is positioned at the same horizontal line with a drill bit, one end of a screw rod is inserted into the jack, and then the drill bit is used for carrying out center hole punching operation on the screw rod, however, when the center hole is punched on the screw rod, the screw rod is stressed greatly, a structure for fixing the screw rod is lacking, the screw rod is easy to deviate, and the locating effect is poor.

The utility model provides the following technical scheme: the utility model provides a lead screw centre bore locating rack, includes the base, the base outside is connected with the mount pad, the mount pad outside is connected with the fixing base, the fixing base lateral part is provided with the slot, the mount pad inboard rotates and is provided with the lead screw, the motor is installed in the mount pad outside, the output shaft of motor with screw drive connects, the screw outside spiro union has the silk cover, the quantity of silk cover sets up to a plurality of, the connecting rod is all installed in the outside of silk cover, the clamp sleeve is installed to the connecting rod tip.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the mounting bolts are inserted into the outer side of the base, the number of the mounting bolts is set to be a plurality of, and the end parts of the mounting bolts are all in threaded connection with mounting nuts.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the telescopic part is arranged on the inner side of the fixing seat and is arranged as an electric lifting rod, the telescopic end of the telescopic part is provided with a pressing plate, and the outer side of the pressing plate is provided with a first protection layer.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the inner side of the mounting seat is provided with a mounting groove, and the lead screw is arranged in the mounting groove.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the screw rod is arranged to be a bidirectional screw rod, threads on the outer side of the screw rod are reversely arranged by taking the central line of the screw rod as a symmetrical axis, the screw sleeves are respectively connected to the two ends of the screw rod in a screwed mode, and the screw sleeves are symmetrically arranged by taking the central line of the screw rod as an axis.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the bearing is installed to the mount pad inboard, the quantity of bearing sets up to a plurality of, the tip of lead screw all is connected with inserts the axle, insert the axle and insert respectively and establish in the bearing, insert the axle with the laminating of the inner ring of bearing, the mount pad with the laminating of the outer loop of bearing, the output shaft of motor inserts one of them insert in the axle.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the sliding sheets are arranged on the outer sides of the wire sleeves, sliding grooves are formed in the inner sides of the mounting seats, and the sliding sheets are inserted into the sliding grooves in a sliding mode.

As an alternative scheme of the screw rod center hole positioning frame, the utility model comprises the following steps: the side of pressing from both sides cover all installs the second protective layer, mount pad outside bolt fastening has the organ cover, the organ cover sets up the mounting groove outside.

The utility model has the following beneficial effects:

1. this lead screw centre bore locating rack, through the setting of base, be convenient for with this locating rack fixed mounting in the slot is inserted to the one end of lead screw, make the lead screw fix on the fixing base, the motor drives the lead screw rotatory, make the silk cover drive the connecting rod be close to each other, thereby make the lead screw by jacket fixed centre gripping, further fix the lead screw, make the lead screw be difficult to take place the skew, thereby make the positioning effect better, as far as possible solve current locating rack, usually have a unable adjustment base that is in same horizontal line jack with the drill bit, insert lead screw one end and establish in the jack, the operation of centering the hole is beaten to the lead screw by the drill bit again, however, when punching the centre hole to the lead screw, the lead screw atress is great, lack further fixed structure to the lead screw, the lead screw takes place the skew easily, make the poor problem of positioning effect.

2. This lead screw centre bore locating rack inserts the slot with the lead screw in, through the setting of extensible member for the flexible end of extensible member drives the clamp plate and moves down, and first protective layer supports to press on the lead screw, thereby makes the lead screw insert and establishes stability better in the slot.

3. This lead screw centre bore locating rack through the setting of inserting the axle for the lead screw sets up between two bearings, accepts the rotation of lead screw through the bearing, makes the rotation of lead screw more smooth and easy, through the setting of gleitbretter and spout, avoids the silk cover to take place to rotate along with the rotation of lead screw, thereby is convenient for make the rotation of lead screw inboard steady at the mount pad.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

FIG. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic view of a partial perspective structure of the present utility model.

Fig. 4 is a schematic view of a partially cut-away structure of the present utility model.

In the figure: 110. a base; 111. installing a bolt; 112. installing a nut; 120. a mounting base; 130. a fixing seat; 140. a slot; 141. a telescoping member; 142. a pressing plate; 143. a first protective layer; 150. a screw rod; 151. a mounting groove; 160. a motor; 170. a silk sleeve; 171. a bearing; 172. inserting a shaft; 173. a sliding sheet; 174. a chute; 180. a connecting rod; 190. a jacket; 191. a second protective layer; 192. an organ cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

This embodiment is intended to facilitate solving the problem of the existing locating rack, usually a fixed base with a jack on the same horizontal line as the drill bit, one end of the screw rod is inserted into the jack, and then the drill bit is used for punching a center hole on the screw rod, however, when the center hole is punched on the screw rod, the screw rod is stressed greatly, and lacks a structure for fixing the screw rod further, the screw rod is easy to deviate, so that the locating effect is poor, please refer to fig. 1, 2, 3 and 4, a locating rack for the center hole of the screw rod comprises a base 110, the outer side of the base 110 is inserted with mounting bolts 111, the number of the mounting bolts 111 is four, and the four mounting bolts 111 are uniformly mounted at four corners of the base 110, and the ends of the mounting bolts 111 are all in threaded connection with mounting nuts 112, so that the device is fixedly mounted on an operating table.

The base 110 upside is connected with mount pad 120, and the right part of mount pad 120 upside is connected with fixing base 130, and fixing base 130 left side is provided with slot 140, and slot 140 sets up to round hole shape, and the inboard rotation of mount pad 120 is provided with lead screw 150, and the mount pad 120 inboard is provided with mounting groove 151, and lead screw 150 sets up in mounting groove 151, and motor 160 is installed in the mount pad 120 outside, and the output shaft and the lead screw 150 transmission of motor 160 are connected.

The screw sleeves 170 are screwed on the outer sides of the screw rods 150, the number of the screw sleeves 170 is set to be two, the screw rods 150 are set to be two-way screw rods, threads on the outer sides of the screw rods 150 are set in opposite directions by taking the central line of the screw rods 150 as a symmetrical axis, the two screw sleeves 170 are respectively screwed on opposite threads on the two ends of the screw rods 150, the two screw sleeves 170 are set in axisymmetrical mode by taking the central line of the screw rods 150, connecting rods 180 are all installed on the outer sides of the screw sleeves 170, jackets 190 are all installed at the upper ends of the connecting rods 180, grooves are all installed on opposite sides of the two jackets 190, vertical sections of the grooves are all set to be semicircular, and the two grooves are combined to be a complete circular hole shape.

The second protective layer 191 is installed in the recess of two opposite sides of pressing from both sides cover 190, and second protective layer 191 sets up to the rubber layer, has the effect of certain soft protection to the lead screw that presss from both sides the cover 190 centre gripping, and increases the frictional force between cover 190 and the lead screw for press from both sides the cover 190 and to the centre gripping of lead screw more firm, the outside bolt fastening of mount pad 120 has organ cover 192, and connecting rod 180 all passes the organ cover, and organ cover 192 sets up in the mounting groove 151 outside, covers mounting groove 151 and seals, prevents debris from dropping in mounting groove 151.

In this embodiment: through the setting of base 110, be convenient for with this locating rack fixed mounting on the operation panel, insert slot 140 with the one end of lead screw, make the lead screw fix on fixing base 130, motor 160 drives lead screw 150 rotation, make silk cover 170 drive connecting rod 180 be close to each other, thereby make the lead screw by jacket 190 fixed centre gripping, further fix the lead screw, make the lead screw be difficult for taking place the skew, thereby make the location effect better, as far as possible solve current locating rack, usually have a unable adjustment base that is in same horizontal line jack with the drill bit, insert lead screw one end and establish in the jack, carry out the operation of centering hole to the lead screw by the drill bit again, however, when centering hole to the lead screw, the lead screw atress is great, lack further structure fixed to the lead screw, the lead screw takes place the skew easily, make the poor problem of location effect.

Example 2

This embodiment is intended to facilitate solving the problem of poor stability when the screw is inserted in the slot 140, and this embodiment is an improvement made on the basis of embodiment 1, specifically, please refer to fig. 1 and 2, the inside of the fixing seat 130 is provided with an installation cavity, a telescopic member 141 is installed in the installation cavity, the telescopic member 141 is set to be an electric lifting rod or set to be a telescopic cylinder, a pressing plate 142 is installed at the telescopic end of the telescopic member 141, a first protection layer 143 is installed at the lower side of the pressing plate 142, the first protection layer 143 is set to be a rubber layer, and the upper side of the slot 140 is communicated with the installation cavity, so that the pressing plate 142 can be moved into the slot 140.

In this embodiment: the lead screw is inserted into the slot 140, and the telescopic end of the telescopic piece 141 drives the pressing plate 142 to move downwards through the arrangement of the telescopic piece 141, and the first protective layer 143 is propped against the lead screw, so that the stability is better when the lead screw is inserted into the slot 140.

Example 3

The present embodiment is intended to facilitate solving the problem that it is inconvenient to make the lead screw 150 rotate smoothly inside the mounting seat 120, and is an improvement made on the basis of embodiment 1, specifically, please refer to fig. 1, 2, 3 and 4, bearings 171 are installed inside the mounting seat 120, the number of bearings 171 is two, two ends of the lead screw 150 are connected with inserting shafts 172, the inserting shafts 172 are respectively inserted into the two bearings 171, the inserting shafts 172 are attached to the inner ring of the bearings 171, the mounting seat 120 is attached to the outer ring of the bearings 171, the output shaft of the motor 160 is inserted into one of the inserting shafts 172, sliding vanes 173 are installed on the lower side of the wire sleeve 170, sliding grooves 174 are provided inside the mounting seat 120, and the sliding vanes 173 are slidingly inserted into the sliding grooves 174.

In this embodiment: through the setting of the plug shaft 172 for the lead screw 150 sets up between two bearings 171, accept the rotation of lead screw 150 through bearing 171, make the rotation of lead screw 150 more smooth and easy, through the setting of gleitbretter 173 and spout 174, avoid silk cover 170 to take place to rotate along with the rotation of lead screw 150, thereby be convenient for make the rotation of lead screw 150 steady in mount pad 120 inboard.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a lead screw centre bore locating rack, includes base (110), its characterized in that: the utility model discloses a screw structure, including base (110), fixing base (120), connecting rod (180) are all installed in the outside of silk cover (170), connecting rod (180) tip is installed to base (110), base (110) outside is connected with mount pad (120), the mount pad (120) outside is connected with fixing base (130), fixing base (130) lateral part is provided with slot (140), the inboard rotation of mount pad (120) is provided with lead screw (150), motor (160) are installed in the mount pad (120) outside, the output shaft of motor (160) with lead screw (150) transmission is connected, lead screw (150) outside spiro union has silk cover (170), the quantity of silk cover (170) sets up to a plurality of, connecting rod (180) are all installed in the outside of silk cover (170), clamp cover (190) are installed to connecting rod (180) tip.

2. A lead screw central hole positioning frame according to claim 1, wherein: the mounting bolts (111) are inserted into the outer side of the base (110), the number of the mounting bolts (111) is set to be a plurality of, and mounting nuts (112) are screwed at the end parts of the mounting bolts (111).

3. A lead screw central hole positioning frame according to claim 1, wherein: the telescopic device is characterized in that a telescopic piece (141) is arranged on the inner side of the fixed seat (130), the telescopic piece (141) is arranged to be an electric lifting rod, a pressing plate (142) is arranged at the telescopic end of the telescopic piece (141), and a first protection layer (143) is arranged on the outer side of the pressing plate (142).

4. A lead screw central hole positioning frame according to claim 1, wherein: the inner side of the mounting seat (120) is provided with a mounting groove (151), and the screw rod (150) is arranged in the mounting groove (151).

5. A lead screw central hole positioning frame according to claim 1, wherein: the screw rod (150) is arranged to be a bidirectional screw rod, threads on the outer side of the screw rod (150) are reversely arranged by taking the central line of the screw rod (150) as a symmetrical axis, the screw sleeves (170) are respectively connected to two ends of the screw rod (150) in a screwed mode, and the screw sleeves (170) are symmetrically arranged by taking the central line of the screw rod (150) as an axis.

6. A lead screw central hole positioning frame according to claim 1, wherein: bearing (171) are installed to mount pad (120) inboard, the quantity of bearing (171) sets up to a plurality of, the tip of lead screw (150) all is connected with and inserts axle (172), insert axle (172) and establish respectively in bearing (171), insert axle (172) with the inner ring laminating of bearing (171), mount pad (120) with the outer ring laminating of bearing (171), the output shaft of motor (160) inserts one of them insert in axle (172).

7. A lead screw central hole positioning frame according to claim 1, wherein: the sliding plates (173) are arranged on the outer sides of the wire sleeves (170), sliding grooves (174) are formed in the inner sides of the mounting seats (120), and the sliding plates (173) are inserted into the sliding grooves (174) in a sliding mode.

8. A lead screw central bore spacer as claimed in claim 4, wherein: the side parts of the clamping sleeves (190) are respectively provided with a second protection layer (191), an organ cover (192) is fixed on the outer side of the mounting seat (120) through bolts, and the organ covers (192) are arranged on the outer side of the mounting groove (151).