CN113103654B - Stepless locking mechanism of press sliding block - Google Patents
Stepless locking mechanism of press sliding block Download PDFInfo
- Publication number
- CN113103654B CN113103654B CN202110230599.8A CN202110230599A CN113103654B CN 113103654 B CN113103654 B CN 113103654B CN 202110230599 A CN202110230599 A CN 202110230599A CN 113103654 B CN113103654 B CN 113103654B
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- Prior art keywords
- locking
- stepless
- shell
- block
- locking rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a stepless locking mechanism of a press slide block, which belongs to the field of press slide block locking devices, can lock any part of a locking rod to realize stepless self-locking of the press slide block, comprises a shell, wherein the shell is internally provided with the locking rod for connecting the press slide block, the periphery of the locking rod is provided with at least two clamping blocks at intervals, the shell is internally provided with wedges positioned at the outer sides of the at least two clamping blocks and an extrusion piece for controlling the wedges to move along the axial direction of the lock holding block, the wedges are controlled to clamp or unclamp the lock holding rod when sliding along the axial direction of the lock holding block, and stepless self-locking of the press sliding block is realized by controlling the lifting of the extrusion piece to control the lifting of the wedges.
Description
[ Field of technology ]
The invention relates to the field of press slide block locking devices, in particular to a stepless locking mechanism of a press slide block.
[ Background Art ]
The sliding block on the hydraulic machine is generally locked by adopting an upper limit locking mode and a side part step locking mode, the manual supporting rod at the lower part of the sliding block is locked when the sliding block is moved to the upper limit, the sliding block cannot be locked when the sliding block is separated from the upper limit, the step locking mode requires fixed locking positions, and when the locking is released, a sliding block micro return stroke is needed, so that an electric control program is more complicated, the danger that the sliding block can easily strike a locking mechanism downwards when the sliding block is in electric failure is easily generated, the sliding block is only provided with a safety function at a specific position, the operation is inconvenient, the production efficiency is influenced, the manual supporting rod is the simplest and original safety device, and the swinging or inserting of the manual supporting rod into the lower part of the sliding block is completely controlled by manpower, so that the safety is poor.
[ Invention ]
The technical problem to be solved by the invention is to provide the stepless locking mechanism of the press sliding block, which overcomes the defects of the prior art, can lock any part of the locking rod and realize stepless self-locking of the press sliding block.
In order to solve the technical problems, the invention adopts the following technical scheme:
The stepless locking mechanism of the press sliding block comprises a shell, a locking rod used for being connected with the press sliding block is arranged in the shell, at least two clamping blocks are arranged at intervals on the periphery of the locking rod, wedges positioned on the outer sides of the at least two clamping blocks and an extrusion piece used for controlling the wedges to move along the axial direction of the locking rod are arranged in the shell, the wedges are controlled to clamp or loosen the locking rod when sliding along the axial direction of the locking rod, and stepless self-locking of the press sliding block is achieved by controlling lifting of the extrusion piece to control lifting of the wedges.
The stepless locking mechanism is used for the press sliding block to realize stepless self-locking of the press sliding block, so that the press sliding block can be locked at any position, and comprises a locking rod connected with the press sliding block, wherein the locking rod is used for locking the position of the press sliding block;
in the operation process, the press sliding block slides in the axial direction of the locking rod to drive the locking rod to synchronously move, when the press sliding block needs to be locked, the control extrusion piece drives the wedge block to move along the axial direction of the locking rod to control the clamping blocks to clamp or loosen the locking rod, a gap exists between the two clamping blocks, so that the clamping of the locking rod cannot be influenced by mutual obstruction of the two clamping blocks, the displacement of the press sliding block is limited after the locking rod is clamped, and therefore, when the press sliding block needs to be locked, the press sliding block can be realized only by controlling the extrusion piece, the clamping blocks can clamp any part of the locking rod, stepless self-locking of the press sliding block is realized, and when the locking is released, the locking rod can move in the axial direction.
Further, a limiting mechanism is arranged in the shell and used for limiting the axial directions of the at least two clamping blocks. Under the action of the limiting mechanism, the axial displacement of at least two clamping blocks is limited, so that the clamping blocks are prevented from moving along with the movement of the wedge blocks or along with the movement of the locking rod, and the locking rod cannot be well clamped due to the axial position change between the clamping blocks.
Further, the limiting mechanism comprises a shaft sleeve sleeved on the locking rod, one end of the shaft sleeve is propped against the shell, the other end of the shaft sleeve is propped against the end parts of the clamping blocks, and the other ends of the at least two clamping blocks are propped against the shell. The axial limit of the clamping block is realized through the abutting of the shaft sleeve and the shell and the clamping block, the shaft sleeve can not influence the axial movement of the locking rod, the axial limit is not required to be carried out on the clamping block through the two ends of the shell by arranging the shaft sleeve, the length of the clamping block can be reduced, and correspondingly, the length of the wedge can be reduced accordingly, so that the overall cost is reduced.
Further, the stepless locking mechanism further comprises a driving mechanism for driving the extrusion to move in the axial direction of the locking rod, and the driving mechanism is controlled by an electric element. The driving mechanism can control the movement of the extrusion piece so as to control the movement of the wedge block, and aims to control the clamping or unlocking of the clamping block to the locking rod.
Further, the driving mechanism comprises an oil cavity arranged in the shell, the pressing piece is arranged in the oil cavity, and the shell is provided with an oil inlet and an oil outlet communicated with the oil cavity. The oil is injected into or taken away from the oil cavity through the oil inlet and outlet, and the movement of the extrusion piece is controlled, so that stable and large force can be provided by the mode, the wedge block and the clamping block can be better matched, the locking rod can be firmly clamped, and the problem that the normal processing is influenced due to the fact that the press sliding block descends is avoided.
Further, the driving mechanism includes a driver and a telescopic rod connected by the driver, the telescopic rod being connected with the pressing member. The telescopic rod is provided with telescopic power through the driver, so that the movement of the extrusion piece is controlled, the driving mode is simple, and stable force can be provided to realize the movement of the wedge block.
Further, an elastic member is further disposed in the housing, and the elastic member generates an elastic force acting on the wedge. The elastic piece can generate elastic force, and the elastic force acts on the wedge block to assist the movement of the wedge block.
Further, the elastic member is a spring axially arranged along the lock rod, and the spring is kept in a compressed state or an extended state. The spring in the compressed state or the extended state has elastic force, so that the elastic force can be ensured to act on the wedge block all the time.
Further, each clamping block comprises a bearing bush, and a friction material is arranged on one side of the bearing bush, which is opposite to the locking rod. The surface of the bearing bush is arc-shaped, the locking rod can be matched, the contact area between the bearing bush and the locking rod is large, the friction coefficient of the friction material is low, and therefore when the clamping block clamps the locking rod, huge friction force can be generated between the friction material and the locking rod to ensure that the locking rod cannot move.
Furthermore, the wedge block and the clamping block are in inclined plane fit transmission. Through inclined plane matched mode for in the locking in-process of holding the locking pole, wedge can bulldoze the grip block to the locking pole gradually in axial movement, make the grip block can closely laminate with the locking pole and increase the force that the grip block acts on the locking pole.
These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.
[ Description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of a stepless locking mechanism when a locking rod is clamped in an embodiment of the invention;
FIG. 2 is a schematic structural view of a stepless locking mechanism when a locking rod is not clamped in the embodiment of the invention;
fig. 3 is a schematic diagram of the operation of the driving mechanism according to the embodiment of the present invention.
Reference numerals:
the device comprises a shell 100, a locking rod 200, a clamping block 300, a bearing bush 310, friction materials 320, a wedge block 400, an extrusion 500, an oil cavity 510, an oil inlet and outlet 520, an elastic piece 600, a shaft sleeve 700 and an energy accumulator 800.
[ Detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 and 2, the embodiment of the invention discloses a stepless locking mechanism of a press slide, which comprises a housing 100, wherein a locking rod 200 for connecting the press slide is arranged in the housing 100, at least two clamping blocks 300 are arranged at intervals on the periphery of the locking rod 200, a wedge 400 positioned at the outer sides of the at least two clamping blocks 300 and an extrusion 500 for controlling the wedge 400 to move along the axial direction of the locking rod are arranged in the housing 100, the wedge 400 controls the at least two clamping blocks 300 to clamp or unclamp the locking rod 200 when sliding along the axial direction of the locking rod 200, stepless self-locking of the press slide is realized by controlling the lifting of the extrusion 500, and a driving mechanism is also arranged for driving the extrusion 500 to move along the axial direction of the locking rod 200, and is controlled by an electric element.
The stepless locking mechanism is used on a press sliding block to realize stepless self-locking of the press sliding block, so that the press sliding block can be locked at any position, comprises a locking rod 200 connected with the press sliding block, and can lock the position of the press sliding block by locking the locking rod 200, and particularly, at least two clamping blocks 300 and wedge blocks 400 matched with the clamping blocks 300 are arranged on the outer side of the locking rod 200, and an extrusion piece 500 capable of controlling the wedge blocks 400 to move in the axial direction of the locking rod 200 is also arranged, wherein the driving mechanism is controlled by an electric element to ensure that the locking and unlocking of the locking rod 200 can be realized in time, and the processing efficiency is ensured;
In the operation process, the press slide block slides in the axial direction of the locking rod 200 to drive the locking rod 200 to synchronously move, when the press slide block needs to be locked, the control extrusion piece 500 drives the wedge block 400 to axially move along the locking rod 200 to control the clamping blocks 300 to clamp or unclamp the locking rod 200, a gap exists between the two clamping blocks 300, so that the two clamping blocks 300 cannot mutually block to influence the clamping of the locking rod 200, when the locking rod 200 is clamped, the displacement of the press slide block is limited, therefore, when the press slide block needs to be locked, the press slide block can be realized only through the control of the extrusion piece 500, the clamping blocks 300 can clamp any part of the locking rod 200, stepless self-locking of the press slide block is realized, and when the locking is released, the locking rod 200 can move in the axial direction.
Preferably, the clamping blocks 300 and the wedges 400 are in bevel matching transmission, and the outer side surfaces of the clamping blocks 300 and the inner side surfaces of the wedges 400 are both bevel, so that along with the axial movement of the wedges 400, the wedges 400 can generate thrust in the radial direction on the clamping blocks 300 through the bevel matching between the clamping blocks 300, so that at least two clamping blocks 300 can clamp the locking rod 200, the wedges 400 slide during unlocking, and the clamping blocks 300 cannot continuously block the axial movement of the locking rod 200 after losing the acting force in the radial direction.
Preferably, the casing 100 is further provided with an elastic member 600, the elastic member 600 abuts against the upper end of the wedge 400, the extrusion member 500 abuts against the lower end of the wedge 400, the elastic member 600 is kept in a compressed state, an axial force can be applied to the wedge 400, the axial displacement of the wedge 400 is controlled by cooperation with the extrusion member 500, when the extrusion member 500 moves downwards, the elastic force of the elastic member 600 can push the wedge 400 downwards, and when the extrusion member 500 moves upwards, the wedge 400 can be pushed upwards and compress the elastic member 600; in this embodiment, the wedge 400 can move downward to enable the clamping block 300 to clamp the locking lever 200, and move upward to enable the clamping block 300 to release the locking lever 200, i.e. the elastic member 600 provides the force for clamping the clamping block 300 to clamp the locking lever 200, the pressing member 500 provides the force required by the clamping block 300 to release the locking lever 200, if the elastic member 600 controls unlocking, the elastic member 600 may not control the movement of the wedge 400 due to too tight fit between the clamping block 300 and the wedge 400 under the action of the pressing member 500, and the driving mechanism can provide a larger force for the pressing member 500 to enable the wedge 400 to move relative to the clamping block 300. Of course, the relationship between the wedges 400 and the clamping blocks 300 is set such that the wedges 400 move upward to lock the clamping blocks 300 to the locking bar 200, the wedges 400 move downward to release the locking bar 200, and the arrangement is also possible, only by exchanging the positions of the elastic members 600 and the pressing blocks.
In this way, when the pressing member 500 moves upward, the wedge 400 can be pushed to move upward, and when the pressing member 500 moves downward, the elastic member 600 can push the wedge 400 to move downward, i.e., the axial movement of the wedge 400 is controlled by the pressing member 500.
By the cooperation of the elastic member 600 and the pressing member 500, the instant locking and unlocking speed is ensured to be high, and the influence on the working beat is reduced.
In the above description, the elastic member 600 is a spring axially disposed along the locking lever 200, and the type of spring is a disc spring, which can provide a large force and generate a large force, so that the wedge 400 can provide a sufficient locking force for the clamping block 300.
In a further technical solution, in order to avoid axial displacement of the clamping blocks 300 caused by close fit with the clamping blocks 300 when the wedge blocks 400 move, so that positional deviation can occur in the axial direction between the clamping blocks 300, and the locking rod 200 cannot be well clamped, in order to solve the problem, a limiting mechanism is further arranged in the housing 100 and used for axially limiting at least two clamping blocks 300, thereby avoiding the occurrence of the above situation.
Specifically, the limiting mechanism comprises a shaft sleeve 700 sleeved on the locking rod 200, one end of the shaft sleeve 700 is propped against the shell 100, the other end of the shaft sleeve 700 is propped against the end parts of the clamping blocks 300, the other ends of at least two clamping blocks 300 are propped against the shell 100, the axial displacement of two sides of the clamping blocks 300 is limited under the action of the shaft sleeve 700 and the shell 100, and the shaft sleeve 700 does not influence the axial movement of the locking rod 200; if limiting is performed on the two ends of the housing 100 and the two ends of the clamping block 300, axial limiting on the clamping block 300 can be also achieved, but since the elastic piece 600 is arranged in the housing 100, the clamping block 300 has a longer length if being capable of propping against the two ends of the housing 100, correspondingly, the length of the wedge 400 can be correspondingly increased, and by arranging the shaft sleeve 700, the length of the clamping block 300 is reduced, and the length of the wedge 400 can be reduced accordingly, so that the overall cost is reduced.
Referring to fig. 1 to 3, based on the above-described embodiment, in another embodiment of the present invention, the structure of the driving mechanism is specifically described.
Preferably, the driving mechanism comprises an oil cavity 510 arranged in the shell 100, the pressing member 500 is arranged in the oil cavity 510, the shell 100 is provided with an oil inlet and outlet 520 communicated with the oil cavity 510, oil is injected into or taken out of the oil cavity 510 through the oil inlet and outlet 520, and the movement of the pressing member 500 is controlled, so that stable and large force can be provided, the wedge block 400 and the clamping block 300 can be better matched, and the locking rod 200 can be firmly clamped, so that the influence on normal processing caused by the descending of a press sliding block is avoided.
The control principle of the oil is disclosed in fig. 3, which comprises an electromagnetic valve YA and an accumulator 800, when the hydraulic press is stopped and locked, the electromagnetic valve YA is powered off, the pressure is released through the electromagnetic valve YA, the elastic piece 600 releases the pressure, the wedge 400 is driven downwards, the wedge 400 is tightly pressed against the clamping block 300 to clamp the locking rod 200, when the hydraulic press is started, the electromagnetic valve YA is electrified, the accumulator 800 rapidly supplies oil to the oil cavity 510, the extrusion piece 500 is pressurized upwards, the wedge 400 is driven to compress the elastic piece 600, the clamping block 300 releases the locking rod 200, the press sliding block normally descends, the pressure in the oil cavity 510 is maintained and supplemented by the accumulator 800, when the pressure of the accumulator 800 is lower than a set pressure value, an alarm is given, the oil pump is started to supplement the pressure to the accumulator 800 through a one-way valve, when the pressure of the accumulator 800 is required to be locked, the electromagnetic valve YA is powered off, the pressure in the oil cavity 510 is rapidly discharged, the elastic piece 600 instantaneously releases the pressure, the wedge 400 is driven downwards, the wedge 400 is tightly pressed against the clamping block 300, and the locking rod 200 is instantaneously locked.
In addition, the driving mechanism can also be a driving device and a power device which is formed by a driving device and a telescopic rod connected with the driving device, the driving device can be a motor, an air cylinder, an electric cylinder or an oil cylinder, and the like, the telescopic rod is connected with the extrusion piece, and telescopic power is provided for the telescopic rod through the driving device, so that the movement of the extrusion piece is controlled, the driving mode is simpler, and stable force can be provided to realize the movement of the wedge block. However, the mounting portion of the driver needs to be left on the housing, which is crowded or affects normal operation.
Referring to fig. 1 and 2, in another embodiment of the present invention, the structure of the clamping blocks 300 is specifically described, each clamping block 300 includes a bearing bush 310, a friction material 320 is disposed on one side of the bearing bush 310 opposite to the locking rod 200, the surface of the bearing bush 310 is arc-shaped, and can be adapted to the locking rod 200, the contact area between the bearing bush and the locking rod 200 is large, and the friction coefficient of the friction material 320 is low, so that when the clamping block 300 clamps the locking rod 200, a huge friction force can be generated between the friction material 320 and the locking rod 200 to ensure that the locking rod 200 cannot move.
In another embodiment of the present invention, unlike the above embodiment, the pressing member is kept connected to the wedges in this embodiment, so that the force of the wedges moving in the axial direction is provided by the pressing member, i.e., the wedges are pulled downward by the pressing member or pushed upward by the pressing member, thus eliminating the need for an elastic member.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (9)
1. The stepless locking mechanism of the press sliding block is characterized by comprising a shell, wherein a locking rod used for being connected with the press sliding block is arranged in the shell, at least two clamping blocks are arranged at intervals on the periphery of the locking rod, a wedge block positioned on the outer side of the at least two clamping blocks and an extrusion piece used for controlling the wedge block to move along the axial direction of the locking rod are arranged in the shell, an elastic piece is further arranged in the shell, the elastic piece is propped against the upper end of the wedge block, the extrusion piece is propped against the lower end of the wedge block, the elastic piece is kept in a compressed state to generate elastic force acting on the wedge block, the wedge block slides along the axial direction of the locking rod to control the at least two clamping blocks to clamp or loosen the locking rod, and stepless self-locking of the press sliding block is realized by controlling lifting of the wedge block.
2. The stepless lock mechanism of claim 1, wherein a limiting mechanism is disposed in the housing for axially limiting the at least two clamping blocks.
3. The stepless lock mechanism of claim 2, wherein the limit mechanism comprises a shaft sleeve sleeved on the lock rod, one end of the shaft sleeve is propped against the shell, the other end of the shaft sleeve is propped against the end parts of the clamping blocks, and the other ends of the at least two clamping blocks are propped against the shell.
4. The stepless lock mechanism of claim 1, further comprising a drive mechanism for driving the pressing member to move in the axial direction of the lock rod, the drive mechanism being controlled by an electrical element.
5. The stepless lock mechanism of claim 4, wherein the driving mechanism comprises an oil cavity arranged in the shell, the pressing piece is arranged in the oil cavity, and the shell is provided with an oil inlet and an oil outlet communicated with the oil cavity.
6. The stepless lock mechanism of claim 4, wherein said drive mechanism comprises a driver and a telescoping rod connected by said driver, said telescoping rod being connected with said extrusion.
7. The stepless lock mechanism of claim 1, wherein the elastic member is a spring disposed along the lock rod axis, and the spring is kept in a compressed state or an extended state.
8. The stepless lock mechanism of a press slide according to any one of claims 1 to 7, wherein each clamping block comprises a bushing provided with friction material on a side opposite to the lock rod.
9. The stepless lock mechanism of any one of claims 1 to 7, wherein the wedge and the clamping block are driven by a bevel fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230599.8A CN113103654B (en) | 2021-03-02 | 2021-03-02 | Stepless locking mechanism of press sliding block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230599.8A CN113103654B (en) | 2021-03-02 | 2021-03-02 | Stepless locking mechanism of press sliding block |
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| Publication Number | Publication Date |
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| CN113103654A CN113103654A (en) | 2021-07-13 |
| CN113103654B true CN113103654B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110230599.8A Active CN113103654B (en) | 2021-03-02 | 2021-03-02 | Stepless locking mechanism of press sliding block |
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| CN (1) | CN113103654B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057157A (en) * | 2013-01-16 | 2013-04-24 | 合肥合锻机床股份有限公司 | Hydraulic machine and slider locking device thereof |
| CN105115819A (en) * | 2015-09-18 | 2015-12-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Fatigue test clamp |
| CN214927408U (en) * | 2021-03-02 | 2021-11-30 | 湖州机床厂有限公司 | Stepless locking mechanism for press slide block |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10163365B4 (en) * | 2001-12-21 | 2007-02-01 | Griwe Innovative Umformtechnik Gmbh | Chuck for clamping thin, disk-shaped workpieces |
| CN201198088Y (en) * | 2008-05-19 | 2009-02-25 | 宁波中策动力机电集团有限公司 | Automatic locking type automatic regulating support |
| CN203543175U (en) * | 2013-10-23 | 2014-04-16 | 宁波大学 | Adjusting device for connection rod length of press |
| CN103836068B (en) * | 2014-01-21 | 2016-03-02 | 燕山大学 | The stepless accurate positioning locking device of large-scale heavy duty mobile platform guide rail class |
-
2021
- 2021-03-02 CN CN202110230599.8A patent/CN113103654B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057157A (en) * | 2013-01-16 | 2013-04-24 | 合肥合锻机床股份有限公司 | Hydraulic machine and slider locking device thereof |
| CN105115819A (en) * | 2015-09-18 | 2015-12-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Fatigue test clamp |
| CN214927408U (en) * | 2021-03-02 | 2021-11-30 | 湖州机床厂有限公司 | Stepless locking mechanism for press slide block |
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| CN113103654A (en) | 2021-07-13 |
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