CN220074254U - Clamping mechanism for top hammer chamfering device - Google Patents
Clamping mechanism for top hammer chamfering device Download PDFInfo
- Publication number
- CN220074254U CN220074254U CN202320682164.1U CN202320682164U CN220074254U CN 220074254 U CN220074254 U CN 220074254U CN 202320682164 U CN202320682164 U CN 202320682164U CN 220074254 U CN220074254 U CN 220074254U
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- China
- Prior art keywords
- top hammer
- fixed
- plate
- pressure head
- clamping mechanism
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- 238000003825 pressing Methods 0.000 claims abstract description 35
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 9
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract description 6
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Abstract
The utility model relates to the technical field of hard alloy machining, in particular to a clamping mechanism for a top hammer chamfering machining device. The utility model provides a top hammer chamfer processingequipment is with clamping mechanism, is including being used for supporting and making the fixed station of top hammer rotation, the fixed station top is equipped with the pressure head subassembly, the pressure head subassembly collocation has the elevating system who is used for realizing the pressure head subassembly reciprocates, the pressure head subassembly includes mounting and a plurality of clamping piece, the clamping piece sets up in the mounting downside. According to the utility model, the top hammer can be clamped and fixed, the pressing piece applies uniform pressure to the upper end face of the top hammer, and the friction force between the pressing piece and the upper end face of the top hammer is smaller, so that the top hammer is more stable, the shaking or deviation of the top hammer during rotation is avoided, the top hammer is not influenced in processing chamfer angles, and the top hammer chamfer angles can be polished more uniformly.
Description
Technical Field
The utility model relates to the technical field of hard alloy machining, in particular to a clamping mechanism for a top hammer chamfering machining device.
Background
In the machining process, the machining procedure of the bottom chamfer of the hard alloy top hammer is usually carried out by using a grinding mode. The traditional chamfering process uses a hard end face grinding wheel, adopts a manual feeding and rotary top hammer mode to chamfer, requires manual operation of operators in the whole process, has low production efficiency, and is easy to cause safety accidents in the use process.
The Chinese patent with the application number of 202221064798.2 discloses a hard alloy top hammer chamfering and installing mechanism, which comprises a clamp and a grinding assembly, wherein the grinding assembly comprises a supporting seat, a supporting plate, a motor, a driving wheel, a driven wheel, a tensioning rocker arm, a pressure spring and an abrasive belt, wherein the motor is arranged on the supporting seat, an output shaft of the motor is fixedly connected with the driving wheel, one end of the supporting plate is fixedly connected with the supporting seat, the other end of the supporting plate extends towards an inclined upward direction relative to the supporting seat, one end of the tensioning rocker arm is hinged with one end of the supporting plate, which is far away from the supporting seat, the other end of the supporting plate is rotationally connected with the driven wheel, and the driving wheel is connected with the driven wheel through the abrasive belt; a pressure spring is arranged between the tensioning rocker arm and the side wall on the same side of the support plate so that the abrasive belt in work is always in a tensioning state.
The scheme is not used for clamping and fixing the hard alloy top hammer, in the process of clamp rotation, the hard alloy top hammer can shake or deviate due to the fact that the abrasive belt extrudes the top hammer, and the shaking or deviation often causes the situation that the surface of the hard alloy top hammer is uneven in polishing after the hard alloy top hammer is polished by the abrasive belt for a long time, so that the use of the hard alloy top hammer is affected.
Disclosure of Invention
The utility model aims to provide a clamping mechanism for a top hammer chamfering device, which can clamp and fix a top hammer and does not influence the processing chamfering of the top hammer.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the clamping mechanism for the top hammer chamfering device comprises a fixed table for supporting and enabling the top hammer to rotate, a pressure head assembly is arranged above the fixed table, the pressure head assembly is matched with a lifting mechanism for realizing up-and-down movement of the pressure head assembly, the pressure head assembly comprises a fixed part and a pressing part, and the pressing part is arranged on the lower side of the fixed part; the number of the compacting pieces is at least three, and the lower end surfaces of the compacting pieces are cambered surfaces; or the number of the pressing pieces is at least one, and the pressing pieces are rotationally fixed on the lower side of the fixing piece by taking a vertical axis as a center.
When chamfering is needed to be carried out on the top hammer, a worker inverts the top hammer on the fixed table, then moves down the pressure head assembly through the lifting mechanism to enable the pressure head assembly to press the top hammer, and enables the lower end face of the pressing piece to press the upper end face of the top hammer; then, the top hammer rotates automatically through the fixing table, and the chamfering device is started to chamfer the top hammer.
Wherein, chamfer processingequipment can adopt current arbitrary one kind to be used for carrying out chamfer processing to the top hammer. The fixed table comprises a table body and a rotating mechanism, wherein the table body can adopt any one of the existing chamfering processing devices, is used for being identical to the inclined angle of the conical surface of the top hammer and realizing the coaxial supporting and positioning of the top hammer, the rotating mechanism can adopt any one of the existing chamfering processing devices, is used for enabling the top hammer to rotate, and can also adopt a mode of driving a motor and a worm and gear structure to be linked with the table body. The lifting mechanism can be an air pressure lifting device, a hydraulic lifting device, a motor-driven lifting device and the like.
The pressing head assembly is arranged to press the top hammer, so that the top hammer cannot shake or deviate during chamfering, and the top hammer is more stable. Through setting the face that compresses tightly the piece and prop up the hammer contact to the cambered surface for compressing tightly the piece and prop up the hammer and be the point contact, reduce the frictional force between pressure head subassembly and the top hammer, avoid compressing tightly the piece as far as possible and prop up and produce wearing and tearing between the hammer, because top hammer area is great, so compress tightly the piece number and need more than three, compress tightly the top hammer in a plurality of positions, make the top hammer atress even more stable. The compressing element is fixed on the lower side of the fixing element by taking a vertical axis as the center in a rotating way, so that the compressing element can synchronously rotate with the top hammer when the top hammer rotates, friction force between the pressure head assembly and the top hammer is reduced, abrasion between the compressing element and the top hammer is avoided as much as possible, the compressing element and the top hammer are in surface-to-surface contact, the top hammer is enabled to be stressed uniformly and more stably for better compressing the top hammer, and when the number of the compressing elements is one, the width of the compressing element can be one third of the width of the upper end face of the top hammer.
This device can carry out the clamping to the top hammer fixedly, and the compressing tightly piece is exerted even pressure to top hammer up end and the frictional force is less between compressing tightly piece and the top hammer up end for the top hammer is more stable, avoids top hammer to appear rocking or skew when the rotation, does not influence top hammer processing chamfer, has the advantage that enables top hammer chamfer to polish more even.
Preferably, the pressing member having an arc surface is spherical, and the pressing member is disposed under the fixing member in a rolling manner.
The pressing piece is spherical and is arranged under the fixing piece in a rolling way, so that each part of the spherical surface of the pressing piece can be contacted with the lower end face of the top hammer, the pressing piece is uniformly worn in use, and the service life of the pressing piece is prolonged.
Preferably, the pressing members are disposed at the lower side of the fixing member at uniform intervals in a ring shape centering on the central axis of the fixing member. Through above-mentioned setting for the atress of top hammer is more even, is compressed tightly fixed effect better.
Preferably, the lifting mechanism comprises a screw rod, the screw rod is in threaded fit with the fixing plate, and the pressure head assembly is fixed at one end of the screw rod.
The workman can rotate the screw rod to realize the lift of pressure head subassembly, and can adjust the height of pressure head subassembly so that adapt to the high top hammer of different sizes.
Preferably, the other end of the screw, which is far away from the pressure head assembly, is provided with a hand wheel.
Through setting up the hand wheel for the workman rotates the screw rod more laborsaving.
Preferably, the fixing plate is rotatably fixed on the supporting frame.
Fix on the support frame through the fixed plate rotation for the pressure head subassembly can keep away from the top hammer, makes things convenient for the workman to place the top hammer on the fixed station, perhaps takes out the top hammer from the fixed station.
Preferably, the fixing plate is hinged to the support frame, the hinge axis of the fixing plate hinged to the support frame is transversely arranged, the first support plate extends laterally at the upper end of the support frame, the fixing plate is fixed to the first support plate through a fastening bolt, and the fixing plate and the first support plate are provided with threaded holes which correspond to each other and are used for being matched with the fastening bolt.
If the hinge axis of the hinge of the fixed plate and the support frame is transversely arranged, the locking between the fixed plate and the first support plate and the locking between the hinge of the fixed plate and the support frame can be completed through the fixation of the fastening bolt and the first support plate; if the hinge axis of the hinge of the fixing plate and the support frame is vertically arranged, a new assembly is needed to be added to lock the hinge of the fixing plate and the support frame. Through the cooperation of fastening bolt and screw hole for fixed plate and first backup pad are together fixed, make the pressure head subassembly on the fixed plate when pushing down the top hammer, fixed plate itself can not rock, make the pressure head subassembly more stable when using.
Preferably, the fastening bolt head is provided with a fitting hole extending in a radial direction and into which the auxiliary rod is inserted.
The fastening bolt is provided with the mating holes, and the worker can insert the auxiliary rod into the mating holes to rotate the fastening bolt, so that the labor is saved when the worker rotates the fastening bolt.
Preferably, the other end of the support frame far away from the first support plate is provided with a second support plate extending laterally; when the fixed plate rotates to one side to the limit position, the fixed plate is supported on the first supporting plate, and when the fixed plate rotates to the other side to the limit position, the fastening bolt on the fixed plate leans against the second supporting plate, and the fixed plate is in an inclined state.
Because the pressure head subassembly has certain weight, if the fixed plate is put flat completely, it is comparatively laborious when then the workman turns the fixed plate, so lean on the second backup pad through fastening bolt and make the fixed plate be in the tilt state for the workman is more laborsaving when turning the fixed plate.
This device can carry out the clamping to the top hammer fixedly, and the compressing tightly piece is exerted even pressure to top hammer up end and the frictional force is less between compressing tightly piece and the top hammer up end for the top hammer is more stable, avoids top hammer to appear rocking or skew when the rotation, does not influence top hammer processing chamfer, has the advantage that enables top hammer chamfer to polish more even.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a schematic diagram of the structure of the top hammer of example 1 in chamfering.
Fig. 3 is a schematic structural view of the ram assembly of embodiment 1.
Fig. 4 is a schematic structural view of the ram assembly of embodiment 2.
Detailed Description
The utility model is further described below with reference to the drawings and specific embodiments.
Example 1
As shown in fig. 1 and 2, this embodiment discloses a clamping mechanism for top hammer chamfer processingequipment, including fixed station 1, fixed station 1 includes stage body 11 and rotary mechanism 12, and fixed station 1 side is equipped with the support frame 4 of vertical setting, and the last fixed plate 5 that articulates of support frame 4, pressure head subassembly 6 set up on fixed plate 5. The table body 11 may be any table body 11 of an existing chamfering device, which is used for realizing the same inclination angle with the conical surface of the top hammer 100 and coaxially supporting and positioning the top hammer 100, the rotating mechanism 12 may be any mechanism of an existing chamfering device, which is used for enabling the top hammer 100 to rotate, or may be linked with the table body 11 by adopting a mode of a driving motor and a worm and gear structure.
As shown in fig. 1 to 3, the pressure head assembly 6 is fixed at the lower end of a screw 63, the screw 63 is in threaded fit with the fixed plate 5, and the upper end of the screw 63 is connected with a hand wheel 64; the ram assembly 6 is provided with a fixing member 61 and pressing members 62, the three pressing members 62 are uniformly spaced in a ring shape centering on the central axis of the fixing member 61, and the pressing members 62 are disposed at the lower side of the fixing member 61. The fixing member 61 is provided with a hemispherical cavity 65 opened downward, the pressing member 62 is spherical in shape, and the diameter of the cavity opening of the hemispherical cavity 65 is smaller than that of the pressing member 62 so that the pressing member 62 is arranged in the hemispherical cavity 65 in a rolling manner.
As shown in fig. 1 to 2, a hinge axis of the fixing plate 5 hinged with the support frame 4 is transversely arranged, a first support plate 41 is laterally extended from the upper end of the support frame 4, the first support plate 41 is vertically arranged with the support frame 4, the fixing plate 5 is fixed with the first support plate 41 through a fastening bolt 51, the fixing plate 5 and the first support plate 41 are provided with threaded holes 411 which correspond to each other and are matched with the fastening bolt 51, and the head of the fastening bolt 51 is provided with a matching hole 511 which extends along the radial direction and is used for inserting an auxiliary rod (not shown in the figure); the other end of the support frame 4 remote from the first support plate 41 is provided with a laterally extending second support plate 42, and the second support plate 42 is arranged perpendicular to the support frame 4.
Example 2
As shown in fig. 4, this embodiment differs from embodiment 1 only in that: the pressing member 62 has a different structural shape, and the fixing structure between the pressing member 62 and the fixing member 61 is different.
The fixing piece 61 is provided with a bearing, the pressing piece 62 is rotationally fixed with the fixing piece 61 through the bearing, and the bearing comprises an oil bearing 66 and a thrust bearing 67; the pressing member 62 has a stepped fixing shaft 621 extending upward, a thicker portion of the fixing shaft 621 is rotatably fixed to the fixing member 61 by an oil bearing 66, a thrust bearing 68 is externally fitted to a thinner upper end of the fixing shaft 621, and both axial end faces of the thrust bearing 67 are respectively in contact with the stepped face of the fixing shaft 621 and an inner wall of the fixing member 61. The number of the pressing pieces 62 is one, and the width of the lower end face of the pressing piece 62 is one third of the width of the upper end face of the top hammer 100.
When chamfering is required to be performed on the jack hammer, the worker inverts the jack hammer 100 on the fixing table 1, then the worker turns over the fixing plate 5 so that the fixing plate 5 is supported on the first support plate 41, then the worker fixes the fixing plate 5 and the first support plate 41 together by tightening the fastening bolts 51 on the fixing plate 5, and the worker rotates the hand wheel 64 again so that the ram assembly 6 moves downward so that the lower end face of the pressing piece 62 tightly presses the upper end face of the jack hammer 100, thereby completing the clamping fixation of the jack hammer. After the clamping and fixing of the top hammer are completed, a worker approaches the top hammer 100 through the hand-operated screw rod sliding table 300 so as to enable the chamfering mechanism 200 of the top hammer chamfering device to be close to the top hammer 100, finally, the top hammer 100 rotates, and the polishing abrasive belt 201 of the chamfering mechanism 200 moves so as to chamfer the top hammer 100.
This device can carry out the clamping to the top hammer fixedly, and the compressing tightly piece is exerted even pressure to top hammer up end and the frictional force is less between compressing tightly piece and the top hammer up end for the top hammer is more stable, avoids top hammer to appear rocking or skew when the rotation, does not influence top hammer processing chamfer, has the advantage that enables top hammer chamfer to polish more even.
Claims (9)
1. The clamping mechanism for the top hammer chamfering device comprises a fixed table for supporting and enabling the top hammer to rotate, and is characterized in that a pressure head assembly is arranged above the fixed table, the pressure head assembly is matched with a lifting mechanism for realizing up-and-down movement of the pressure head assembly, the pressure head assembly comprises a fixed piece and a pressing piece, and the pressing piece is arranged on the lower side of the fixed piece; the number of the compacting pieces is at least three, and the lower end surfaces of the compacting pieces are cambered surfaces; or the number of the pressing pieces is at least one, and the pressing pieces are rotationally fixed on the lower side of the fixing piece by taking a vertical axis as a center.
2. The clamping mechanism for a top hammer chamfering device according to claim 1, wherein the pressing member having an arc surface is spherical, and the pressing member is disposed under the fixing member in a rolling manner.
3. The clamping mechanism for a top hammer chamfering machine according to claim 2, wherein the pressing members are provided at a lower side of the fixing member in a ring shape at uniform intervals centering on a central axis of the fixing member.
4. A chuck for use with a top hammer chamfering machine according to claim 1, 2 or 3, wherein the lifting mechanism includes a screw which is threadedly engaged with the fixing plate, and the ram assembly is fixed to one end of the screw.
5. The clamping mechanism for a top hammer chamfering device according to claim 4, wherein a hand wheel is arranged at the other end of the screw rod far away from the pressure head assembly.
6. The fixture for a top hammer chamfering device according to claim 5, wherein the fixing plate is rotatably fixed to the supporting frame.
7. The clamping mechanism for a top hammer chamfering device according to claim 6, wherein the fixing plate is hinged to the supporting frame, a hinge axis of the fixing plate hinged to the supporting frame is arranged transversely, a first supporting plate extends laterally from the upper end of the supporting frame, the fixing plate is fixed to the first supporting plate through a fastening bolt, and threaded holes corresponding to each other and used for being matched with the fastening bolt are formed in the fixing plate and the first supporting plate.
8. The clamping mechanism for a top hammer chamfering machine according to claim 7, wherein the fastening bolt head portion is provided with a fitting hole extending in a radial direction for insertion of an auxiliary rod.
9. The clamping mechanism for the top hammer chamfering device according to claim 8, wherein a second support plate extending laterally is provided at the other end of the support frame away from the first support plate; when the fixed plate rotates to one side to the limit position, the fixed plate is supported on the first supporting plate, and when the fixed plate rotates to the other side to the limit position, the bolts on the fixed plate lean against the second supporting plate, and the fixed plate is in an inclined state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682164.1U CN220074254U (en) | 2023-03-31 | 2023-03-31 | Clamping mechanism for top hammer chamfering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682164.1U CN220074254U (en) | 2023-03-31 | 2023-03-31 | Clamping mechanism for top hammer chamfering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220074254U true CN220074254U (en) | 2023-11-24 |
Family
ID=88820413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320682164.1U Active CN220074254U (en) | 2023-03-31 | 2023-03-31 | Clamping mechanism for top hammer chamfering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220074254U (en) |
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2023
- 2023-03-31 CN CN202320682164.1U patent/CN220074254U/en active Active
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