CN215615330U - Auxiliary clamping device for quickly drilling center hole on pin shaft - Google Patents
Auxiliary clamping device for quickly drilling center hole on pin shaft Download PDFInfo
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- CN215615330U CN215615330U CN202122145972.8U CN202122145972U CN215615330U CN 215615330 U CN215615330 U CN 215615330U CN 202122145972 U CN202122145972 U CN 202122145972U CN 215615330 U CN215615330 U CN 215615330U
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Abstract
The utility model discloses an auxiliary clamping device for quickly drilling a central hole on a pin shaft, which comprises an installation base and clamping pressure arms which are rotatably installed, wherein the top ends of the clamping pressure arms are correspondingly provided with clamping press blocks with pressing jaws, pin shaft positioning plates are arranged between the clamping pressure arms, the end parts of the pin shaft positioning plates are respectively connected to the adjacent clamping pressure arms, a positioning plate lifting device is arranged under the pin shaft positioning plates, and the bottom ends of the positioning plate lifting devices are connected with a clamping force application pedal; the pin shaft is placed on the pin shaft positioning plate in a vertical state, the clamping force application pedal is stepped on by feet, under the action of the positioning plate lifting device, the two clamping pressure arms drive the corresponding clamping pressing blocks to move towards the direction close to the pin shaft, the pin shaft is fixed and clamped in the clamping jaws, punching is conducted, after punching is finished, the clamping force application pedal is released, the clamping pressing blocks release the pin shaft, the pin shaft punching device is accurate in positioning, simple to operate, does not need secondary or even multiple adjustment, and the punching processing efficiency of the pin shaft is greatly improved.
Description
Technical Field
The utility model relates to the technical field of parts for million kilowatt units, in particular to an auxiliary clamping device for quickly drilling a central hole on a pin shaft.
Background
With the upgrading of energy structures and the implementation of energy-saving emission-reducing target decision measures, million kilowatt-level units become the mainstream of construction, and with the continuous capacity expansion of the units, the pin shafts are used as the components of the rigid beam part sleeves of the boiler, the demand is increased continuously, for example, 660MW units are used, the pin shaft consumption of each unit is about six thousand of the rest sleeves, and a new test is generated on the processing speed of the pin shafts. The traditional process of drilling a central hole on a pin shaft needs to sequentially go through the following steps: 1, clamping a pin shaft by a chassis clamping shaft; 2, a drilling bit is arranged on the tailstock support; 3, a feeding hand wheel; 4, punching and loosening the chuck. Therefore, the traditional process of punching the center hole needs frequent operations of clamping, locking, loosening the chuck and the like, the shaft part rotates at a high speed during punching, the chuck is fully locked to prevent the part from being thrown out, and therefore the use has great potential safety hazard. In addition, when the pin shaft workpiece is punched, the drill bit rotates but does not rotate, the center of the drill bit and the center of the part are required to be consistent, the drill bit is easily broken when the pin shaft workpiece is clamped and inclined, so that the requirement on the operating skill of workers is high, the possibility of multiple adjustment exists in the machining process, the machining efficiency is extremely low, and the requirement on the using amount of the pin shaft cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an auxiliary clamping device for quickly drilling a central hole on a pin shaft, which is simple to operate, good in positioning effect and high in speed, and greatly improves the machining efficiency.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the auxiliary clamping device for quickly drilling the center hole through the pin shaft comprises an installation base, wherein the top end of the installation base is rotatably provided with at least two clamping pressure arms, the top ends of the clamping pressure arms are correspondingly provided with clamping press blocks, pressing jaws are formed on opposite surfaces of the clamping press blocks, pin shaft positioning plates are arranged below the clamping press blocks and between the clamping pressure arms, the end portions of the pin shaft positioning plates are respectively connected to the clamping pressure arms close to the pin shaft positioning plates, positioning plate lifting devices are arranged under the pin shaft positioning plates and penetrate through the installation base, and clamping force application pedals are connected to the bottom ends of the positioning plate lifting devices.
Preferably, the clamping pressing arm comprises a bent arm part with a V-shaped structure, a straight arm part is fixedly connected to the top end of the bent arm part, and the clamping pressing block is rotatably mounted on the straight arm part.
According to the preferable technical scheme, two sides of each clamping pressure arm are oppositely provided with pressure arm supporting seats, the two pressure arm supporting seats are respectively and fixedly installed on the installation base, and the clamping pressure arms are installed between the two corresponding pressure arm supporting seats through rotating shafts.
According to the preferable technical scheme, the pin shaft positioning plate comprises a positioning plate body, a positioning ring groove is formed in the top surface of the positioning plate body, an installation shaft which is arranged corresponding to each clamping pressure arm is arranged in a penetrating mode through the positioning plate body in a rotating mode, connecting rods are correspondingly arranged at two ends of the installation shaft, one end of each connecting rod is sleeved at the end of the corresponding installation shaft in a sleeved mode, and the other end of each connecting rod is rotatably installed on the corresponding clamping pressure arm.
As the preferred technical scheme, locating plate elevating gear is including running through the lift axle that the installation base set up, lift axle top end fixed connection to the bottom of round pin axle locating plate, the lower extreme of lift axle rotate install in centre gripping application of force footboard, fixed mounting has lift guider on the installation base, lift guider locates the periphery of lift axle.
According to the preferable technical scheme, the lifting guide device comprises a guide sleeve fixedly installed and a return spring sleeved on the periphery of the lifting shaft, and the return spring is installed between the pin shaft positioning plate and the guide sleeve in a limiting mode.
As an improvement to the technical scheme, the clamping force application pedal is relatively provided with two shaft seats, and the lifting shaft is rotatably arranged between the two shaft seats through a pin shaft.
By adopting the technical scheme, the auxiliary clamping device for quickly drilling the central hole by the pin shaft comprises an installation base, wherein at least two clamping press arms are rotatably installed at the top end of the installation base, clamping press blocks are correspondingly installed at the top ends of the clamping press arms, pressing jaws are formed on opposite surfaces of the clamping press blocks, a pin shaft positioning plate is arranged between the clamping press arms and below the clamping press blocks, the end parts of the pin shaft positioning plate are respectively connected to the adjacent clamping press arms, a positioning plate lifting device is arranged right below the pin shaft positioning plate, the positioning plate lifting device penetrates through the installation base, and the bottom end of the positioning plate lifting device is connected with a clamping force application pedal; the utility model has the following beneficial effects: during the use, be the state of erectting the round pin axle and place on round pin axle locating plate, step on centre gripping application of force footboard with the foot, under locating plate elevating gear's effect, two press from both sides tight pressure arm and drive corresponding tight briquetting and move towards the direction that is close to, will sell the fixed centre gripping of axle in compressing tightly the jaw, begin to carry out this moment and punch can, after punching, release centre gripping application of force footboard, under locating plate elevating gear's effect, press from both sides tight briquetting release round pin axle, take out it can, this device location is accurate, and is easy to operate, need not secondary or even adjustment many times, make the machining efficiency that punches of round pin axle promote by a wide margin.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a clamping press arm according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a clamping compact according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a lift shaft according to an embodiment of the present invention;
FIG. 5 is a schematic view of a clamping force pedal according to an embodiment of the present invention;
in the figure: 1-quickly drilling a central hole on a pin shaft; 2-installing a base; 3-clamping the press arm; 31-a bent arm portion; 32-straight arm portion; 4-clamping the pressing block; 5-pressing the jaw; 6-pressing arm supporting seat; 7-a positioning plate body; 8-positioning ring grooves; 9-mounting the shaft; 10-a connecting rod; 11-a lifting shaft; 12-a guide sleeve; 13-a return spring; 14-clamping the force application pedal; 15-shaft seat; 16-support bar.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in figure 1, round pin axle is beaten center hole fast and is used supplementary clamping device, and fixed mounting is on the workstation that round pin axle beaten center hole 1 fast, including installation base 2, installation base 2 is equipped with base supporting leg and base supporting bench, base supporting bench fixed mounting in each the top of base supporting leg, the base supporting leg makes base supporting bench with round pin axle is beaten center hole 1 fast between the workstation and is formed with the space to the pedal operation of convenience.
As shown in fig. 1, 2 and 3, at least two clamping pressure arms 3 are rotatably mounted at the top end of the mounting base 2, clamping press blocks 4 are correspondingly mounted at the top ends of the clamping pressure arms 3, and pressing jaws 5 are formed on opposite surfaces of the clamping press blocks 4. When pin shaft punching is carried out, each clamping pressing block 4 is in a close state, the pressing jaw 5 surrounds to form a space for accommodating and clamping a pin shaft, and the pin shaft penetrates through the space and is placed in a vertical state.
In this embodiment, the clamping press arm 3 includes a bent arm portion 31 having a V-shaped structure, a straight arm portion 32 is fixedly connected to a top end of the bent arm portion 31, and the clamping press block 4 is rotatably mounted on the straight arm portion 32. The bent arm portions 31 of the clamping press arms 3 together form a relatively wide space around the clamping press arms, so that sufficient installation space is provided for other supporting facilities. And two sides of each clamping pressure arm 3 are oppositely provided with pressure arm supporting seats 6, the two pressure arm supporting seats 6 are respectively and fixedly arranged on the mounting base 2, and the clamping pressure arm 3 is arranged between the two corresponding pressure arm supporting seats 6 through a rotating shaft. The clamping pressure arm 3 is rotatably installed, so that the power is conveniently and movably clamped, and the clamping and releasing actions of the pin shaft are realized.
In the embodiment, a pin shaft positioning plate is arranged below the clamping pressing block 4 and between the clamping pressing arms 3, the end parts of the pin shaft positioning plate are respectively connected to the adjacent clamping pressing arms 3, when pin shaft punching is performed, the pin shaft is placed on the pin shaft positioning plate in a vertical state, and the pin shaft positioning plate plays a supporting role in the pin shaft punching. Specifically, the round pin locating plate includes locating plate body 7, be equipped with positioning ring groove 8 on the top surface of locating plate body 7, run through locating plate body 7 rotates and is equipped with each the installation axle 9 that presss from both sides tight pressure arm 3 and correspond the setting, installation axle 9 both ends correspond and are equipped with connecting rod 10, two connecting rod 10 one end suit respectively in the tip of installation axle 9, two the connecting rod 10 other end rotates respectively to be installed in corresponding press from both sides tight pressure arm 3. The bottom end of the pin shaft is arranged in the positioning ring groove 8, so that the bottom of the pin shaft slides to influence the punching quality when punching force is applied. The rotary installation of each part in this embodiment is convenient for adapting to the relative rotation of each part when the clamping pressing block 4 performs clamping or releasing action.
As shown in fig. 1, 4 and 5, a positioning plate lifting device is arranged right below the pin shaft positioning plate, and the positioning plate lifting device penetrates through the mounting base 2. Specifically, locating plate elevating gear is including running through the lift axle 11 that installation base 2 set up, 11 top fixed connection of lift axle to the bottom of round pin axle locating plate, the lower extreme of lift axle 11 rotate install in centre gripping application of force footboard 14, fixed mounting has lift guider on the installation base 2, lift guider locates the periphery of lift axle 11. The lifting shaft 11 can be lifted up and down, so that the pin shaft positioning plate is driven to ascend or descend. When the lifting shaft 11 is stressed, the pin shaft positioning plate is driven to descend, and under the action of each connecting rod 10, the corresponding clamping press arms 3 are pulled to rotate towards the mutually approaching direction, so that the two clamping press blocks 4 are closed, the pin shaft is clamped, and punching is performed; when the lifting shaft 11 loses force, the pin shaft positioning plate can ascend and reset, and under the action of each connecting rod 10, the corresponding clamping pressing arms 3 are pulled to rotate and reset towards the direction away from each other, so that the two clamping pressing blocks 4 are separated, the release of the pin shaft is realized, and the pin shaft can be taken out.
In this embodiment, the lifting guide device includes a guide sleeve 12 fixedly installed, and a return spring 13 sleeved on the periphery of the lifting shaft 11, the return spring 13 is installed between the pin shaft positioning plate and the guide sleeve 12 in a limiting manner, and the lifting shaft 11 can return to an initial state by itself under the action of the return spring 13, so as to release the pin shaft.
The bottom end of the positioning plate lifting device is connected with a clamping force application pedal 14, two shaft seats 15 are oppositely arranged on the clamping force application pedal 14, and the lifting shaft 11 is rotatably arranged between the two shaft seats 15 through a pin shaft. The clamping force application pedal 14 is stepped down to realize the descending of the lifting shaft 11; and releasing the clamping force application pedal 14, and automatically returning the pin shaft positioning plate under the action of the return spring 13 to release the pin shaft. A support bar 16 may be welded between the two base support legs of the mounting base 2 for supporting the clamping force application pedal 14.
The utility model has the following advantages:
1. simple structure, reasonable in design, whole size is less, convenient to use, easy operation is laborsaving.
2. The device is suitable for processing the center hole of the pin shaft with different lengths and diameters, and the whole process is controllable, controllable and controllable, so that high-efficiency production within a safety range is completely realized.
3. The operation threshold is reduced, and the use operator can quickly master the use method. After the device is additionally arranged, an operator can quickly clamp and release the pin shaft, the operation is simpler, the processing efficiency is improved, and the quality-guaranteeing and efficient use can be realized.
4. The device adopts the drill bit to rotate, and the fixed mode of round pin axle feeds and punches, has reduced the potential safety hazard that the high-speed rotation of work piece brought, and this device can realize that round pin axle and drill bit center keep unanimous, avoids phenomenons such as punching off-centre and drill bit interrupt.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. Round pin axle is beaten center hole fast and is used supplementary clamping device, including the installation base, its characterized in that: the top of installation base rotates installs two at least tight pressure arms of clamp, the top of pressing from both sides tight pressure arm corresponds installs and presss from both sides tight briquetting, be formed with on the opposite face of pressing from both sides tight briquetting and compress tightly keep silent, it is located to press from both sides between the tight pressure arm the below of pressing from both sides tight briquetting is equipped with round pin axle locating plate, the tip of round pin axle locating plate is connected respectively in being close to press from both sides tight pressure arm on, be equipped with locating plate elevating gear under the round pin axle locating plate, locating plate elevating gear runs through the installation base sets up, locating plate elevating gear's bottom is connected with centre gripping application of force footboard.
2. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 1, is characterized in that: the clamping pressing arm comprises a bent arm part with a V-shaped structure, the top end of the bent arm part is fixedly connected with a straight arm part, and the clamping pressing block is rotatably installed on the straight arm part.
3. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 2, is characterized in that: and two sides of each clamping pressure arm are oppositely provided with pressure arm supporting seats, the two pressure arm supporting seats are respectively and fixedly arranged on the mounting base, and the clamping pressure arms are arranged between the two corresponding pressure arm supporting seats through rotating shafts.
4. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 1, is characterized in that: the pin shaft positioning plate comprises a positioning plate body, a positioning ring groove is formed in the top surface of the positioning plate body, an installation shaft which corresponds to each clamping pressure arm is arranged in a penetrating mode through the positioning plate body in a rotating mode, connecting rods are correspondingly arranged at two ends of the installation shaft, one end of each connecting rod is sleeved at the end of the corresponding installation shaft in a sleeved mode, and the other end of each connecting rod is rotatably installed on the corresponding clamping pressure arm.
5. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 1, is characterized in that: the locating plate lifting device comprises a lifting shaft penetrating through the installation base, the top end of the lifting shaft is fixedly connected to the bottom end of the pin shaft locating plate, the lower end of the lifting shaft is rotatably installed on the clamping force application pedal, a lifting guide device is fixedly installed on the installation base, and the lifting guide device is arranged on the periphery of the lifting shaft.
6. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 5, is characterized in that: the lifting guide device comprises a guide sleeve fixedly installed and a return spring sleeved on the periphery of the lifting shaft, and the return spring is installed between the pin shaft positioning plate and the guide sleeve in a limiting mode.
7. The auxiliary clamping device for rapidly drilling the central hole on the pin shaft according to claim 5, is characterized in that: the clamping force application pedal is provided with two shaft seats oppositely, and the lifting shaft is rotatably arranged between the two shaft seats through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122145972.8U CN215615330U (en) | 2021-09-07 | 2021-09-07 | Auxiliary clamping device for quickly drilling center hole on pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122145972.8U CN215615330U (en) | 2021-09-07 | 2021-09-07 | Auxiliary clamping device for quickly drilling center hole on pin shaft |
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| Publication Number | Publication Date |
|---|---|
| CN215615330U true CN215615330U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122145972.8U Active CN215615330U (en) | 2021-09-07 | 2021-09-07 | Auxiliary clamping device for quickly drilling center hole on pin shaft |
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| CN (1) | CN215615330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056120A (en) * | 2022-07-14 | 2022-09-16 | 苏州立婷锁业有限公司 | Be used for downthehole accurate burnishing device of lock core |
-
2021
- 2021-09-07 CN CN202122145972.8U patent/CN215615330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056120A (en) * | 2022-07-14 | 2022-09-16 | 苏州立婷锁业有限公司 | Be used for downthehole accurate burnishing device of lock core |
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