CN209737106U - Portable hydraulic fixture for explosion-proof and explosion-proof motor end cover - Google Patents
Portable hydraulic fixture for explosion-proof and explosion-proof motor end cover Download PDFInfo
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- CN209737106U CN209737106U CN201920087767.0U CN201920087767U CN209737106U CN 209737106 U CN209737106 U CN 209737106U CN 201920087767 U CN201920087767 U CN 201920087767U CN 209737106 U CN209737106 U CN 209737106U
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- piston rod
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- positioning mandrel
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Abstract
The utility model discloses a portable hydraulic fixture for an explosion-proof and explosion-proof motor end cover, which comprises a fixture body, a positioning mandrel, 3 first hydraulic cylinders and a pressure plate; the lower end of the upper shaft head of the piston rod of the first hydraulic cylinder is provided with a ring groove; the width of a ring groove at the upper part of a piston rod of the first hydraulic cylinder is larger than the thickness of the pressure plate; the 3 first hydraulic cylinders are arranged on the same circumference taking the central axis of the positioning mandrel as the center; the pressure plate is provided with 3 through holes corresponding to the positions of the piston rods of the first hydraulic cylinders below the pressure plate in a clamping state; the through hole consists of an arc hole and an end hole which are communicated, and the radial width of the arc hole is larger than the diameter of the ring groove at the upper part of the piston rod of the first hydraulic cylinder and smaller than the diameter of the upper shaft head of the piston rod of the first hydraulic cylinder; the diameter of an end hole of the through hole in the pressure plate is larger than that of the upper shaft head of the piston rod of the first hydraulic cylinder; the further improvement lies in that: a second hydraulic cylinder is arranged below the positioning mandrel in the inner cavity of the clamp body; and a floating pressure head is arranged below the pressure plate. The utility model discloses make location, press from both sides tightly convenient, press from both sides tightly reliably.
Description
Technical Field
The utility model relates to a machinery technical field, concretely relates to motor end cover machining anchor clamps.
Background
The motor end cover is generally machined on a machine tool in batches by using a clamp, the used clamp comprises a clamp body, a positioning core shaft, 3 first hydraulic cylinders and a pressure plate, the clamp body is horizontally arranged and provided with an inner cavity with a downward opening, the central axis of the positioning core shaft is vertically arranged and installed in an inner hole in the middle of the clamp body, and the 3 first hydraulic cylinders are arranged in the inner cavity of the clamp body and around the positioning core shaft at intervals; the central axis of the first hydraulic cylinder is vertically arranged, the cylinder body of the first hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body, and the piston rod of the first hydraulic cylinder is upward, penetrates through the inner hole of the fixture body and extends out of the upper end surface of the fixture body; when the clamping mechanism is in a clamping state, the pressure plate is horizontally arranged above the upper end face of the clamp body at intervals, and the upper end of a piston rod of the first hydraulic cylinder is connected with the pressure plate. The upper end of the piston rod of the first hydraulic cylinder penetrates through a hole in the pressure plate, and the upper end of the piston rod of the first hydraulic cylinder is provided with a nut which is pressed on the pressure plate. When the end cover clamping device is used, the end cover to be machined is positioned on the positioning mandrel, the pressure plate is placed on the end cover, the first hydraulic cylinder drives the piston rod of the first hydraulic cylinder to downwards tension the pressure plate, and the pressure plate tightly presses the end cover to realize clamping; after the processing is accomplished, the nut of the upper end of first pneumatic cylinder piston rod will be lifted off earlier, just can take down the pressure disk, then just can lift the end cover off on anchor clamps, again with the location of end cover on anchor clamps, when pressing from both sides tightly, will install the pressure disk again, screw up the nut, this process is time-consuming and troublesome, production efficiency is low.
Disclosure of Invention
The utility model discloses to prior art's not enough, it is convenient to provide one kind and make location, clamping process, is showing the explosion-proof flame proof motor end cover portable hydraulically operated fixture who improves production efficiency.
The utility model discloses a technical goal is realized to following technical scheme.
The portable hydraulic fixture for the explosion-proof and explosion-proof motor end cover comprises a fixture body, a positioning mandrel, 3 first hydraulic cylinders and a pressure plate; the clamp body is horizontally arranged and is provided with an inner cavity with a downward opening; the central axis of the positioning mandrel is vertically arranged and is arranged in an inner hole in the middle of the clamp body; the 3 first hydraulic cylinders are arranged in the inner cavity of the clamp body at intervals and around the positioning mandrel; the central axis of the first hydraulic cylinder is vertically arranged, the cylinder body of the first hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body, and the piston rod of the first hydraulic cylinder is upward, penetrates through the inner hole of the fixture body and extends out of the upper end surface of the fixture body; when the clamping mechanism is in a clamping state, the pressure plate is horizontally arranged and arranged above the upper end surface of the clamp body at intervals, and the upper end of a piston rod of the first hydraulic cylinder is connected with the pressure plate; the improvement is that: the lower end of the upper shaft head of the piston rod of the first hydraulic cylinder is provided with a ring groove; the groove width of a ring groove at the upper part of the piston rod of the first hydraulic cylinder is larger than the thickness of the pressure plate; the 3 first hydraulic cylinders are arranged on the same circumference taking the central axis of the positioning mandrel as the center; the pressure plate is provided with 3 through holes corresponding to the positions of the piston rods of the first hydraulic cylinders below the pressure plate in a clamping state; the through hole consists of an arc hole and an end hole which are communicated; the center line of the arc hole and the center of the end hole are on an arc line which takes the central axis of the positioning mandrel as the center and takes the central axis of the positioning mandrel to the central axis of the piston rod of the first hydraulic cylinder as the radius, and the radial width of the arc hole is larger than the diameter of the ring groove at the upper part of the piston rod of the first hydraulic cylinder and smaller than the diameter of the shaft head at the upper part of the piston rod of the first hydraulic; the diameter of the end hole of the through hole in the pressure plate is larger than the diameter of the upper shaft head of the piston rod of the first hydraulic cylinder.
In the structure, a second hydraulic cylinder is arranged below the positioning mandrel in the inner cavity of the clamp body; the central axis of the second hydraulic cylinder is vertically arranged, and the cylinder body of the second hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body; the upper end of a piston rod of the second hydraulic cylinder is connected with the positioning mandrel; the positioning mandrel is in clearance fit with the mounting hole of the positioning mandrel on the fixture body; the positioning mandrel can move downwards under the driving of the second hydraulic cylinder and then is lower than the upper end surface of the clamp body.
In the structure, a floating pressure head is arranged below the pressure plate; the floating pressure head comprises a hanging rod, a pair of semicircular clamping plates, a pressure plate and 3 pressing blocks; the upper end of the suspender is fixedly connected to the middle part of the lower end surface of the pressure plate, the lower end of the suspender is provided with an arc pressure head, and the upper part of the arc pressure head is necked down; the pressing plate is horizontally arranged, and a counter bore is formed in the middle of the upper end face of the pressing plate; the 3 pressing blocks are fixedly connected to the lower end face of the pressing plate at intervals, and the pressing blocks are columnar; the hanger rod arc pressing head is installed in a counter bore in the middle of the upper end face of the pressing plate, the pair of semicircular clamping plates are clamped at the necking position on the upper portion of the hanger rod arc pressing head, and the pair of semicircular clamping plates are fixedly connected to the upper end face of the pressing plate.
Compared with the prior art, the utility model, following positive effect has:
1. The lower end of the upper shaft head of the piston rod of the first hydraulic cylinder is provided with a ring groove; the width of a ring groove at the upper part of a piston rod of the first hydraulic cylinder is larger than the thickness of the pressure plate; the 3 first hydraulic cylinders are arranged on the same circumference taking the central axis of the positioning mandrel as the center; the pressure plate is provided with 3 through holes corresponding to the positions of the piston rods of the first hydraulic cylinders below the pressure plate in a clamping state; the through hole consists of an arc hole and an end hole which are communicated; the center line of the arc hole and the center of the end hole are on an arc line which takes the central axis of the positioning mandrel as the center and takes the central axis of the positioning mandrel to the central axis of the piston rod of the first hydraulic cylinder as the radius, and the radial width of the arc hole is larger than the diameter of the ring groove at the upper part of the piston rod of the first hydraulic cylinder and smaller than the diameter of the shaft head at the upper part of the piston rod of the first; the diameter of the end hole of the through hole on the pressure plate is larger than the diameter of the upper shaft head of the piston rod of the first hydraulic cylinder. When the end cover clamping device is used, an end cover to be machined is positioned on the positioning mandrel, an end hole of a through hole in the pressure plate is aligned to a piston rod of the first hydraulic cylinder, the pressure plate is sleeved on the upper end of the piston rod of the first hydraulic cylinder from top to bottom, an annular groove in the upper part of the piston rod of the first hydraulic cylinder is sleeved to the position of the annular groove in the upper part of the piston rod of the first hydraulic cylinder, the pressure plate is rotated, the annular groove in the upper part of the piston rod of the first hydraulic cylinder enters the arc hole of the pressure plate, the pressure plate is clamped into the annular groove in; when the machining is finished, the first hydraulic cylinder drives the piston rod of the first hydraulic cylinder to upwards loosen the pressure plate, the pressure plate is rotated in the opposite direction when the first hydraulic cylinder is clamped and installed, the pressure plate can be directly taken down when the annular groove in the upper part of the piston rod of the first hydraulic cylinder is positioned at the end hole position of the through hole in the pressure plate, and the machined end cover is detached. The whole clamping process is quick and convenient, and the production efficiency is obviously improved.
2. A second hydraulic cylinder is arranged below the positioning mandrel in the inner cavity of the clamp body; the central axis of the second hydraulic cylinder is vertically arranged, and the cylinder body of the second hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body; the upper end of a piston rod of the second hydraulic cylinder is connected with the positioning mandrel; the positioning mandrel is in clearance fit with the mounting hole of the positioning mandrel on the fixture body; the positioning mandrel can move downwards under the driving of the second hydraulic cylinder and then is lower than the upper end surface of the clamp body. Like this, when the installation is waited to process the end cover, need not the suit and to fix a position the dabber, only need put on the anchor clamps body up end, the location dabber upwards rises the location under the drive of second pneumatic cylinder, makes the clamping more convenient, further improves production efficiency.
3. The below of pressure disk is equipped with the pressure head that floats, and the jib lower extreme is equipped with the circular arc pressure head for the clamp plate can rotate, and like this, during the use, even by the tight position unevenness of clamp, the clamp plate can rotate the back, makes to compress tightly some whole with by the contact of tight position of clamp, thereby guarantee to press from both sides tightly reliably.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 2.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 3.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 1.
Fig. 6 is a schematic view of the structure of the middle pressure plate of the present invention.
Fig. 7 is an enlarged view of part i of fig. 3.
Detailed Description
The invention will be further explained with reference to the following embodiments according to the attached drawings.
The portable hydraulic clamp for the end cover of the explosion-proof and explosion-proof motor shown in the attached drawing comprises a clamp body 1, a positioning mandrel 3, 3 first hydraulic cylinders 2 and a pressure plate 5; the fixture body 1 is horizontally arranged and is provided with an inner cavity with a downward opening; the central axis of the positioning mandrel 3 is vertically arranged and is arranged in the inner hole in the middle of the clamp body 1; the 3 first hydraulic cylinders 2 are arranged in the inner cavity of the fixture body 1 at intervals and around the positioning mandrel 3; the central axis of the first hydraulic cylinder 2 is vertically arranged, the cylinder body of the first hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body 1, and the piston rod 2.1 of the first hydraulic cylinder is upward, penetrates through the inner hole of the fixture body 1 and extends out of the upper end surface of the fixture body 1; when the clamp is in a clamping state, the pressure plate 5 is horizontally arranged and is arranged above the upper end surface of the clamp body 1 at intervals.
The lower end of the upper shaft head 2.1.1 of the first hydraulic cylinder piston rod 2.1 is provided with a ring groove 2.1.2; the groove width of a ring groove 2.1.2 at the upper part of a piston rod 2.1 of the first hydraulic cylinder is larger than the thickness of the pressure plate 5; 3 first hydraulic cylinders 2 are arranged on the same circumference taking the central axis of the positioning mandrel 3 as the center; the pressure plate 5 is provided with 3 through holes 5.1 corresponding to the positions of the piston rods 2.1 of the first hydraulic cylinders below in a clamping state; the through hole 5.1 consists of an arc hole 5.1.1 and an end hole 5.1.2 which are communicated; the center line of the circular arc hole 5.1.1 and the center of the end hole 5.1.2 are on a circular arc line which takes the central axis of the positioning mandrel 3 as the center and takes the central axis of the positioning mandrel 3 to the central axis of the first hydraulic cylinder piston rod 2.1 as the radius, and the radial width of the circular arc hole 5.1.1 is larger than the diameter of the circular groove 2.1.2 at the upper part of the first hydraulic cylinder piston rod 2.1 and smaller than the diameter of the shaft head 2.1.1 at the upper part of the first hydraulic cylinder piston rod 2.1; the diameter of an end hole 5.1.2 of a through hole 5.1 on the pressure plate 5 is larger than the diameter of an upper shaft head 2.1.1 of a piston rod 2.1 of the first hydraulic cylinder.
A second hydraulic cylinder 6 is arranged below the positioning mandrel 3 in the inner cavity of the fixture body 1; the central axis of the second hydraulic cylinder 6 is vertically arranged, and the cylinder body of the second hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body 1; the upper end of a piston rod of the second hydraulic cylinder 6 is connected with the positioning mandrel 3; the positioning mandrel 3 is in clearance fit with the mounting hole of the positioning mandrel 3 on the clamp body 1; the positioning mandrel 3 can move downwards under the drive of the second hydraulic cylinder 6 and then is lower than the upper end surface of the clamp body 1.
A floating pressure head 7 is arranged below the pressure plate 5; the floating pressure head 7 comprises a suspender 7.4, a pair of semicircular clamping plates 7.3, a pressure plate 7.2 and 3 pressing blocks 7.1; the upper end of the suspender 7.4 is fixedly connected to the middle part of the lower end surface of the pressure plate 5, the lower end is provided with an arc pressure head 7.4.1, and the upper part of the arc pressure head 7.4.1 is necked down; the pressing plate 7.2 is horizontally arranged, and a counter bore is formed in the middle of the upper end face of the pressing plate 7.2; 3 pressing blocks 7.1 are fixedly connected to the lower end face of the pressing plate 7.2 at intervals, and the pressing blocks 7.1 are columnar; the jib 7.4 circular arc pressure head 7.4.1 is installed in the counter bore in the middle part of the up end of clamp plate 7.2, and a pair of semicircle cardboard 7.3 card is at 7.4 circular arc pressure head 7.4.1 upper portion necking down position of jib, and a pair of semicircle cardboard 7.3 fixed connection is on clamp plate 7.2 up end.
Claims (3)
1. A portable hydraulic clamp for an explosion-proof and explosion-proof motor end cover comprises a clamp body (1), a positioning mandrel (3), 3 first hydraulic cylinders (2) and a pressure plate (5); the clamp body (1) is horizontally arranged and is provided with an inner cavity with a downward opening; the central axis of the positioning mandrel (3) is vertically arranged and is arranged in an inner hole in the middle of the clamp body (1); the 3 first hydraulic cylinders (2) are arranged in the inner cavity of the fixture body (1) at intervals and around the positioning mandrel (3); the central axis of the first hydraulic cylinder (2) is vertically arranged, the cylinder body of the first hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body (1), and a piston rod (2.1) of the first hydraulic cylinder is upward, penetrates through the inner hole of the fixture body (1) and extends out of the upper end surface of the fixture body (1) upward; when the clamping device is in a clamping state, the pressure plate (5) is horizontally arranged and arranged above the upper end surface of the clamp body (1) at intervals, and the upper end of a piston rod (2.1) of the first hydraulic cylinder is connected with the pressure plate (5); the method is characterized in that: the lower end of the upper shaft head (2.1.1) of the first hydraulic cylinder piston rod (2.1) is provided with a ring groove (2.1.2); the groove width of a ring groove (2.1.2) at the upper part of the piston rod (2.1) of the first hydraulic cylinder is larger than the thickness of the pressure plate (5); the 3 first hydraulic cylinders (2) are arranged on the same circumference taking the central axis of the positioning mandrel (3) as the center; the pressure plate (5) is provided with 3 through holes (5.1) corresponding to the positions of the piston rods (2.1) of the first hydraulic cylinders below in a clamping state; the through hole (5.1) consists of an arc hole (5.1.1) and an end hole (5.1.2) which are communicated; the center line of the arc hole (5.1.1) and the center of the end hole (5.1.2) are on an arc line which takes the central axis of the positioning mandrel (3) as the center and the central axis of the positioning mandrel (3) to the central axis of the first hydraulic cylinder piston rod (2.1) as the radius, and the radial width of the arc hole (5.1.1) is greater than the diameter of an annular groove (2.1.2) at the upper part of the first hydraulic cylinder piston rod (2.1) and less than the diameter of an upper shaft head (2.1.1) of the first hydraulic cylinder piston rod (2.1); the diameter of an end hole (5.1.2) of a through hole (5.1) in the pressure plate (5) is larger than that of an upper shaft head (2.1.1) of a first hydraulic cylinder piston rod (2.1).
2. The convenient hydraulic fixture for the end cover of the explosion-proof and explosion-proof motor according to claim 1, is characterized in that: a second hydraulic cylinder (6) is arranged below the positioning mandrel (3) in the inner cavity of the clamp body (1); the central axis of the second hydraulic cylinder (6) is vertically arranged, and the cylinder body of the second hydraulic cylinder is fixedly connected to the upper end surface of the inner cavity of the fixture body (1); the upper end of a piston rod of the second hydraulic cylinder (6) is connected with the positioning mandrel (3); the positioning mandrel (3) is in clearance fit with a mounting hole of the positioning mandrel (3) on the clamp body (1); the positioning mandrel (3) can move downwards under the driving of the second hydraulic cylinder (6) and then is lower than the upper end surface of the fixture body (1).
3. The explosion-proof and explosion-proof motor end cover portable hydraulic fixture of claim 2, characterized in that: a floating pressure head (7) is arranged below the pressure plate (5); the floating pressure head (7) comprises a hanging rod (7.4), a pair of semicircular clamping plates (7.3), a pressure plate (7.2) and 3 pressing blocks (7.1); the upper end of the suspender (7.4) is fixedly connected to the middle part of the lower end surface of the pressure plate (5), the lower end is provided with an arc pressure head (7.4.1), and the upper part of the arc pressure head (7.4.1) is necked down; the pressing plate (7.2) is horizontally arranged, and a counter bore is formed in the middle of the upper end face of the pressing plate (7.2); the 3 pressing blocks (7.1) are fixedly connected to the lower end face of the pressing plate (7.2) at intervals, and the pressing blocks (7.1) are columnar; the arc pressing head (7.4.1) of the suspender (7.4) is arranged in a counter bore in the middle of the upper end face of the pressing plate (7.2), the pair of semicircular clamping plates (7.3) are clamped at the necking position at the upper part of the arc pressing head (7.4.1) of the suspender (7.4), and the pair of semicircular clamping plates (7.3) are fixedly connected to the upper end face of the pressing plate (7.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920087767.0U CN209737106U (en) | 2019-01-20 | 2019-01-20 | Portable hydraulic fixture for explosion-proof and explosion-proof motor end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920087767.0U CN209737106U (en) | 2019-01-20 | 2019-01-20 | Portable hydraulic fixture for explosion-proof and explosion-proof motor end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209737106U true CN209737106U (en) | 2019-12-06 |
Family
ID=68706546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920087767.0U Active CN209737106U (en) | 2019-01-20 | 2019-01-20 | Portable hydraulic fixture for explosion-proof and explosion-proof motor end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209737106U (en) |
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2019
- 2019-01-20 CN CN201920087767.0U patent/CN209737106U/en active Active
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