CN110614512A - Locking device and moment arm type torque balancing device - Google Patents
Locking device and moment arm type torque balancing device Download PDFInfo
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- CN110614512A CN110614512A CN201910906134.2A CN201910906134A CN110614512A CN 110614512 A CN110614512 A CN 110614512A CN 201910906134 A CN201910906134 A CN 201910906134A CN 110614512 A CN110614512 A CN 110614512A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a locking device and a moment arm type torque balancing device. The locking device comprises a force application unit, a force boosting unit and a locking unit, wherein the force application unit and the locking unit are respectively connected with the force boosting unit, the force application unit drives the locking unit to move along a first direction through the force boosting unit so as to lock the part to be locked, and the force application unit drives the locking unit to move along a direction opposite to the first direction through the force boosting unit so as to unlock the part to be locked. The force application unit provides the output of locking force, the force transmission is carried out through the force boosting unit, the locking force is increased, and the locking unit is driven to lock the locking component, so that the locking and stable connection between the mechanical equipment are realized.
Description
Technical Field
The invention relates to the field of mechanical locking equipment, in particular to a locking device and a moment arm type torque balancing device.
Background
With the rapid development of the industry, the connection and movement between the heavy mechanical parts are more and more frequent, so the locking problem of the heavy mechanical parts cannot be ignored. For example, the arm balance base of the torque device has the length of 1600mm, the width of 1000mm and the height of 450mm, the contact part of the lower part and the periphery of the base of the lathe bed has the length of 1200mm and the width of 1000mm, the balance device arranged on the upper part bears the torque of 100kNm, and the base correspondingly bears the pull force of 200 kN. Because the contact surface of the balance base and the bed base is large, the balance base and the bed base are reliably fastened by adopting a multipoint locking mode, and meanwhile, the condition that the position or the angle of the balance base needs to be adjusted is frequently met in the working process. The existing method can only adopt the traditional bolt mechanical connection or oil cylinder hydraulic connection mode generally, the bolt mechanical connection is reliable but has very low efficiency, and the automatic program control can not be realized; the hydraulic connection of the oil cylinder can realize automatic control, but in order to ensure that the oil cylinder can stably output force, a hydraulic oil source needs to supply pressure oil for a long time, and the reliability is lower.
In view of the above, it is desirable to provide a locking device which has high locking efficiency, firmness, reliability, large load, easy unloading and automatic control.
Disclosure of Invention
The invention aims to provide a locking device and a moment arm type torque balancing device, which have the advantages of high locking efficiency, firmness, reliability, large load, easiness in unloading and capability of realizing automatic control.
In order to achieve the above object, the present invention provides a locking device, which includes a force application unit, a force increasing unit and a locking unit, wherein the force application unit and the locking unit are respectively connected to the force increasing unit, the force application unit drives the locking unit to move along a first direction through the force increasing unit to lock a member to be locked, and the force application unit drives the locking unit to move along a direction opposite to the first direction through the force increasing unit to unlock the member to be locked.
Optionally, the force boosting unit includes a pair of slanting wedge assemblies, each slanting wedge assembly includes a driving slanting wedge and a driven slanting wedge, the driving slanting wedge is connected with the force applying unit, and the driven slanting wedge is connected with the locking unit.
Optionally, the driving wedge is provided with a first sliding inclined surface which forms a first angle with the movement direction of the driving wedge, the driven wedge is provided with a second sliding inclined surface which is matched with the first sliding inclined surface and forms a second angle with the first direction, and the force application unit drives the driving wedge to move along the second direction and drives the driven wedge to move along the first direction through the matching of the first sliding inclined surface and the second sliding inclined surface; wherein the first angle is smaller than the second angle, the sum of the first angle and the second angle is 90 degrees, and the first angle is 2-3 degrees.
Optionally, the force application unit comprises a hydraulic drive mechanism, the hydraulic drive mechanism comprises a double-acting hydraulic oil cylinder and a pair of push-pull rods, two ends of the double-acting hydraulic oil cylinder are respectively connected with one push-pull rod, and each push-pull rod is fixedly connected with one driving wedge.
Optionally, the locking device is disposed on a bearing base of the arm-type torque balancing device and is configured to fixedly connect the bearing base with a base of the machine tool, the base of the machine tool is provided with a connecting portion contacting with the bearing base, the locking device is disposed at the connecting portion, the force application unit drives the locking unit to move along a first direction through the force application unit to lock and fixedly connect the bearing base with the base of the machine tool, and the force application unit drives the locking unit to move along a direction opposite to the first direction through the force application unit to loosen the connecting portion and enable the bearing base and the base of the machine tool to move relatively.
Optionally, the locking unit includes a pair of locking assemblies, each locking assembly includes a pressing plate, a bolt and a nut, one end of the bolt is connected to the pressing plate, the axial direction of the bolt is perpendicular to the surface of the pressing plate, the connecting portion is disposed between the pressing plate and the second sliding inclined surface of the driven inclined wedge, the other end of the bolt is connected to the driven inclined wedge through the nut, and the axial direction of the bolt is parallel to the first direction.
Optionally, the driving wedge is provided with a rectangular yielding hole capable of accommodating the bolt, and the length direction of the rectangular yielding hole is parallel to the second direction.
Optionally, the connecting portion of the bed base is a guide rail, and a guide rail groove matched with the edge of the guide rail is formed on a contact surface of the pressing plate and the bearing base.
Optionally, the device further comprises a control unit, wherein the control unit is connected with the force application unit and is used for controlling the force application unit to apply force.
The invention also provides a moment arm type torque balancing device which comprises a bearing base and a bed base, wherein the bed base is provided with a connecting part which is in contact with the bearing base, and the moment arm type torque balancing device also comprises at least one locking device.
The invention has the beneficial effects that:
(1) the force application unit generates locking force, the force application unit and the locking unit are driven by the force increasing unit to increase the locking force, and then the locking unit locks the belt locking component, so that the locking and stable connection of the connection part between the mechanical equipment can be realized.
Furthermore, a mode of combining a slanting wedge mechanical boosting system and a hydraulic system is adopted, two locking forces are generated to ensure reliable locking with the bed body base, one is an internal pulling force generated by the slanting wedge component through a mechanical self-locking effect, the other is a hydraulic force generated by an oil cylinder and acts on the slanting wedge component, the maximum load can be borne by the device in a working state and the safety and the stability can be ensured through the resultant force of the two forces, the operation process has the characteristics of small hydraulic driving force, large locking force and convenient control, the stability of the bearing machine base in a large bearing state can be ensured, the safety of the machine base in a non-working state can also be ensured, the use requirements of the device under different working conditions can be met, the control unit is connected with the force application unit, high-efficiency locking and automatic control are realized, and the device is firm, reliable, large in load and easy to unload.
(2) The moment arm type torque balancing device adopting the locking device can greatly improve the locking and unlocking efficiency and ensure the safe, reliable and stable operation of the device.
The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
Fig. 1 shows a schematic plan view of a locking device according to an embodiment of the present invention.
Fig. 2 shows a top view of the internal structure of a locking device according to an embodiment of the invention.
Fig. 3 shows a schematic view of a locking state of a locking device according to an embodiment of the invention.
Fig. 4 shows a schematic view of a relaxed state of a locking device according to an embodiment of the invention.
Figure 5 shows a schematic view of a locking device according to an embodiment of the invention in detail.
Description of reference numerals:
1. carrying the engine base; 2. a bed base; 3. pressing a plate; 4. a bolt; 5. a guide rail; 6. a push-pull rod; 7. a flange; 8. a double-acting oil cylinder; 9. a hole of abdication; 10. a nut; 11. driving the inclined wedge; 12. a driven inclined wedge; 13. a gasket; 14. a gap; 15. a first sliding ramp; 16. a second sliding ramp; 17. a first direction; 18; a second direction.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a schematic plan view showing a locking device according to an embodiment of the present invention, and as shown in fig. 1, the locking device according to the present invention includes a force application unit, a force increasing unit, and a locking unit, the force application unit and the locking unit are respectively connected to the force increasing unit, the force application unit drives the locking unit to move along a first direction 17 through the force increasing unit to lock a member to be locked, and the force application unit drives the locking unit to move along a direction opposite to the first direction 17 through the force increasing unit to unlock the member to be locked.
Specifically, the force application unit provides locking force for outputting, force is conducted through the force boosting unit, the locking force is increased, and the locking unit is driven to lock the locking component, so that locking and stable connection between mechanical equipment are achieved.
In this embodiment, the force increasing unit includes a pair of slanting wedge assemblies, each slanting wedge assembly includes a driving slanting wedge 11 and a driven slanting wedge 12, the driving slanting wedge 11 is connected with the force applying unit, and the driven slanting wedge 12 is connected with the locking unit.
Specifically, the force application unit generates a locking force to drive the driving wedges 11 to move so as to drive the driven wedges 12 to move, and meanwhile, the direction of the locking force can be changed and amplified through the wedge assembly, so that the locking unit is driven to move and a locking effect is generated on the component to be locked.
Referring to fig. 5, in this embodiment, the driving wedge 11 is provided with a first sliding inclined surface 15 forming a first angle with the moving direction of the driving wedge 11, the driven wedge 12 is provided with a second sliding inclined surface 16 cooperating with the first sliding inclined surface 15 and forming a second angle with the first direction 17, and the force application unit drives the driving wedge 11 to move along a second direction 18 and drives the driven wedge 12 to move along the first direction 17 through cooperation of the first sliding inclined surface 15 and the second sliding inclined surface 16; wherein the first angle is smaller than the second angle, the sum of the first angle and the second angle is 90 degrees, and the first angle is 2-3 degrees.
Specifically, the driving wedges 11 and the driven wedges 12 are respectively provided with a sliding inclined surface which forms a certain angle with the moving direction of the locking process, a first sliding inclined surface 15 of the driving wedges 11 is contacted with a second sliding inclined surface 16 of the driven wedges 12, when the force is conducted, the first sliding inclined surface 15 and the second sliding inclined surface 16 are relatively displaced, so that the force is conducted and the direction of the force is changed, in the embodiment, the sum of the first angle of the first sliding inclined surface 15 in the driving inclined wedge 11 and the second angle of the second sliding inclined surface 16 in the driven inclined wedge 12 is 90 degrees, that is, during the locking process, the direction of the locking force is changed by 90 degrees through the wedge assembly, and the first angle of the first sliding inclined plane 15 in the driving wedge 11 should be set to be smaller than the second angle of the second sliding inclined plane 16 in the driven wedge 12, so that the locking force provided by the force applying unit can be increased, therefore, the effect that the locking unit can output larger locking force only by outputting smaller force by the force application unit is achieved. In this embodiment, in order to achieve the amplification of the good locking force and the best locking effect, the first angle of the first sliding inclined surface 15 is set to be 2 to 3 °, and correspondingly, the second angle of the second sliding inclined surface 16 is "90-first angle". The principle of the benefit-increasing effect of the wedge assembly is common knowledge in the art, and those skilled in the art can set the angles of the first sliding inclined surface 15 and the second sliding inclined surface 16 of the driving wedge 11 and the driven wedge 12 according to specific requirements, and will not be described herein again.
As shown in fig. 2, in this embodiment, the force application unit includes a hydraulic drive mechanism, the hydraulic drive mechanism includes a double-acting hydraulic cylinder and a pair of push-pull rods 6, two ends of the double-acting hydraulic cylinder are respectively connected to one of the push-pull rods 6, and each of the push-pull rods 6 is fixedly connected to one of the driving wedges 11.
Specifically, the force application unit in this embodiment adopts an existing double-acting hydraulic cylinder, and the double-acting hydraulic cylinder can synchronously provide the same hydraulic pressure at two ends, so as to drive the two push-pull rods 6 arranged at two ends of the cylinder to synchronously push and pull the driving wedges 11 with the same stroke, thereby realizing the synchronous locking operation of the two locking units. In other embodiments of the present invention, the force application unit may also adopt a hydraulic cylinder with a push-pull rod 6 at one end, and the same technical effect can be achieved, and those skilled in the art can select the type of the hydraulic cylinder according to actual requirements. It should be noted that, the existing hydraulic cylinders are all provided with hydraulic locks, which can ensure the stability of the output pressure of the hydraulic cylinder when the locking device is in a locking state.
Referring to fig. 3 to 5, in this embodiment, the locking device is disposed on the supporting base 1 of the arm-type torque balancing device, and is used to fixedly connect the supporting base 1 with the bed base 2, the bed base 2 is provided with a connecting portion contacting with the supporting base 1, the locking device is disposed at the connecting portion, the force applying unit drives the locking unit to move along a first direction 17 through the force increasing unit to lock and fixedly connect the supporting base 1 with the bed base 2, and the force applying unit drives the locking unit to move along a direction opposite to the first direction 17 through the force increasing unit to release the connecting portion and enable the supporting base 1 and the bed base 2 to move relatively.
Specifically, referring to fig. 1 and 2, the locking device in this embodiment is applied to locking and fixing connection between a load-bearing base 1 and a bed base 2 of a force-arm type torque balancing device, the locking device is disposed in the load-bearing base 1 and is fixedly connected with the load-bearing base through a flange 7, when the load-bearing base 1 and the bed base 2 need to be locked and fixed, a push-pull rod 6 of a double-acting cylinder 8 pulls a driving wedge 11 to move towards the inside of the load-bearing base 1 along a horizontal direction, so as to drive a driven wedge 12 to move upwards along a vertical direction, further drive a locking unit to move upwards to lock a connecting part of the bed base 2 and the load-bearing base 1 to realize the fixed connection between the load-bearing base 1 and the bed base 2, when the load-bearing base 1 needs to be moved on a bed to adjust a position, the driving wedge 11 is pushed to move towards the outside of the load-bearing base 1 along, the driven inclined wedges 12 move downwards along the vertical direction under the action of the gravity of the locking unit, then the locking unit moves downwards to be far away from the connecting part of the bed base 2, the locking device is switched to a loosening state, and the bearing machine base 1 and the bed base 2 can move relatively.
In this embodiment, the locking unit includes a pair of locking assemblies, each locking assembly includes a pressing plate 3, a bolt 4 and a nut 10, one end of the bolt 4 is connected to the pressing plate 3, and the axial direction of the bolt 4 is perpendicular to the surface of the pressing plate 3, the connecting portion is disposed between the pressing plate 3 and the second sliding inclined surface 16 of the driven wedge 12, and the other end of the bolt 4 is connected to the driven wedge 12 through the nut 10, and the axial direction of the bolt 4 is parallel to the first direction 17.
Specifically, referring to fig. 3, the pressing plate 3 is provided with a through hole which is matched with the screw rod of the bolt 4 and can be internally provided with threads or not, the screw head can be clamped on the lower surface of the pressing plate 3 after the bolt 4 passes through the through hole, the driven wedge 12 is provided with a through hole which is matched with the screw rod of the bolt 4, the through hole penetrates through the driven wedge 12 from the second sliding inclined surface 16, the other end of the screw rod of the bolt 4 penetrates through the through holes of the driving wedge 11 and the driven wedge 12 and is connected with the top surface of the driven wedge 12 through the nut 10, when the pressure plate 3 is assembled, the distance between the top surface of the pressure plate 3 and the part to be locked can be adjusted through the nut 10 and the screw rod, the distance between the upper surface of the pressure plate 3 and the surface of the guide rail 5 is adjusted by the nut 10, for example, so that the clearance distance between the upper surface of the pressure plate 3 and the surface of the guide rail 5 is smaller than the maximum displacement of the driven wedges 12 moving upward during the locking process, thereby realizing the locking between the pressure plate 3 and the guide rail 5. In this embodiment, the pressing plate 3 is a flat cylinder with a diameter larger than the head of the bolt 4, and the thickness of the pressing plate 3 needs to be larger, so as to ensure that the locking effect is not affected by obvious deformation under the condition of larger stress. In other embodiments of the present invention, the pressing plate 3 may also be a square, an equilateral hexagon, etc., and the corresponding screw head of the bolt 4 may also be other suitable shapes, which can be selected and designed by those skilled in the art according to actual requirements, and will not be described herein again.
In this embodiment, the driving wedge 11 is provided with a rectangular yielding hole 9 capable of accommodating the bolt 4, and the length direction of the rectangular yielding hole 9 is parallel to the second direction 18.
Specifically, referring to fig. 2, since the driving wedge 11 in this embodiment is disposed between the driven wedge 12 and the pressing plate 3, and the bolt 4 needs to pass through the driving wedge 11 and be connected to the driven wedge 12, a rectangular abdicating hole 9 that does not affect the vertical movement of the bolt 4 when the driving wedge 11 moves horizontally needs to be disposed on the driving wedge 11, the length direction of the rectangular abdicating hole 9 of the driving wedge 11 is consistent with the movement direction (second direction 18) of the push-pull rod 6 pushing and pulling the driving wedge 11, and the length of the rectangular abdicating hole 9 should be greater than or equal to the displacement distance of the horizontal stroke of the driving wedge 11.
In this embodiment, the connecting portion of the bed base 2 is a guide rail 5, and a guide rail 5 groove matched with the edge of the guide rail 5 is formed on the contact surface of the pressing plate 3 and the bearing base 1.
Specifically, referring to fig. 3 to 5, in this embodiment, the connecting portion of the bed base 2 is a guide rail 5, a cross section of a top of the guide rail 5 is a pi-shaped shape, the top of the guide rail 5 contacts with a bottom surface of the bearing base 1, edges of the top of the guide rail 5 protrude toward two sides of the guide rail 5, a groove of the guide rail 5 is formed on a contact surface of the pressing plate 3 and the bottom of the bearing base 1, the groove is matched with edges of the two sides of the guide rail 5, and in a specific implementation process, a gasket 13 needs to be disposed between a lower portion of the driving wedge 11 and a.
Further, when the locking device is locked, hydraulic oil enables a piston rod of the double-acting hydraulic oil cylinder to contract to drive the driving inclined wedges 11 to move inwards in a translation mode, a force boosting effect is generated through contact with the driven inclined wedges 12, the force direction is deflected by 90 degrees, the bolts 4 and the horizontal pressing plate 3 are driven to vertically move upwards until the bottom surface of the guide rail 5 of the bed body base 2 is attached, the top surface of the pressing plate 3 is contacted and locked with the lower surface of the edge of the guide rail 5, the bearing base 1 and the bed body base 2 are fixedly connected into a whole, when the base is in a static bearing state, the locking device generates two locking forces to ensure reliable locking with the bed body base 2, one locking force is an internal pulling force generated by the inclined wedge assembly through a mechanical self-locking effect, and the other locking force is a hydraulic force generated by the double-acting on the. When the bearing machine base 1 is ready to move, hydraulic oil enables a piston rod of the double-acting oil cylinder 8 to move outwards, and drives the push-pull rod 6 and the horizontally arranged driving inclined wedge 11 to move outwards until the piston rod is separated from the vertically arranged driven inclined wedge 12, and then the bolt 4 and the lower pressing plate 3 generate a gap 14 with the surface of the machine body guide rail 5 under the action of gravity. The top surface of the pressure plate 3 is separated from the lower surface of the edge of the guide rail 5 and is far away from the guide rail 5 and forms a gap 14 with the lower surface of the edge of the guide rail 5, and the bearing machine base 1 can slide on the guide rail 5 of the machine base 2. And when the bearing base 1 is in an unloaded state and is static, the hydraulic pressure generated by the oil cylinder disappears, at the moment, the friction force generated by the bottom surface of the driving inclined wedge 11 and the contact surface of the bearing base 1 (through the gasket 13) is always greater than the horizontal component force generated by the downward pressure received by the driven inclined wedge 12, so that the mechanical self-locking effect is generated, and the locking device enables the vertical bolt 4 and the horizontal pressing plate 3 to be attached to the surface of the guide rail 5 by means of the internal tension force generated by the inclined wedge component through the mechanical self-locking effect, so that the locking purpose is achieved.
In this embodiment, the device further comprises a control unit, wherein the control unit is connected with the force application unit and is used for controlling the force application unit to apply force.
Specifically, the force application unit is connected with the control unit to realize automatic control of the locking device, in the specific implementation process, the double-acting oil cylinders 8 can be electrically connected with the control unit, and the control unit controls the double-acting oil cylinders 8 to simultaneously or sequentially push and pull the driving wedges 11 to perform locking or releasing actions through the push-pull rod 6, so that automatic electrical control is realized. The control unit may be an existing automatic control system, such as a PLC control system, etc., which is easily implemented by those skilled in the art and is not described herein again.
The moment arm type torque balancing device comprises a bearing base 1 and a bed base 2, wherein the bed base 2 is provided with a connecting part which is in contact with the bearing base 1, and the moment arm type torque balancing device further comprises at least one locking device.
Specifically, be applied to among the arm of force type moment of torsion balancing unit with above-mentioned locking device, locking device sets up on bearing frame 1, bear the arm of force that frame 1 is used for assembling the output torque, when locking device locks, bearing frame 1 passes through bolt 4, clamp plate 3 links as an organic wholely with lathe bed base 2, export hydraulic pressure through hydraulic drive mechanism, and carve the subassembly to one side and combine, it is little to have drive power, locking force is big, convenient control's characteristics, both can ensure to bear the stability of frame 1 when bearing greatly, also ensure to demonstrate the safety of bearing frame 1 when unoperated state, can satisfy the operation requirement under different operating modes at the device. The use efficiency is greatly improved, and the safe, reliable and stable operation of the torque device is ensured.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The locking device is characterized by comprising a force application unit, a force increasing unit and a locking unit, wherein the force application unit and the locking unit are respectively connected with the force increasing unit, the force application unit drives the locking unit to move along a first direction through the force increasing unit so as to lock a part to be locked, and the force application unit drives the locking unit to move along a direction opposite to the first direction through the force increasing unit so as to loosen the part to be locked.
2. The locking device of claim 1, wherein the force increasing unit comprises a pair of cam assemblies, each cam assembly comprising a driving cam connected to the force applying unit and a driven cam connected to the locking unit.
3. The locking device according to claim 2, wherein the driving wedge has a first sliding slope forming a first angle with the moving direction of the driving wedge, the driven wedge has a second sliding slope cooperating with the first sliding slope and forming a second angle with the first direction, and the force applying unit drives the driving wedge to move in the second direction and drives the driven wedge to move in the first direction through cooperation between the first sliding slope and the second sliding slope;
wherein the first angle is smaller than the second angle, the sum of the first angle and the second angle is 90 degrees, and the first angle is 2-3 degrees.
4. The locking device according to claim 2, wherein the force application unit comprises a hydraulic drive mechanism, the hydraulic drive mechanism comprises a double-acting hydraulic cylinder and a pair of push-pull rods, two ends of the double-acting hydraulic cylinder are respectively connected with one of the push-pull rods, and each push-pull rod is fixedly connected with one of the driving wedges.
5. The locking device of claim 1, wherein the locking device is disposed on a support base of the arm-type torque balancer for fixedly connecting the support base to a bed base, the bed base is provided with a connecting portion contacting the support base, the locking device is disposed at the connecting portion, the force applying unit drives the locking unit to move in a first direction through the force increasing unit to lock and fixedly connect the support base to the bed base, and the force applying unit drives the locking unit to move in a direction opposite to the first direction through the force increasing unit to unlock the connecting portion and enable the support base and the bed base to move relatively.
6. The locking device according to claim 5, wherein the locking unit comprises a pair of locking assemblies, each locking assembly comprises a pressing plate, a bolt and a nut, one end of the bolt is connected with the pressing plate, the axial direction of the bolt is perpendicular to the surface of the pressing plate, the connecting part is arranged between the pressing plate and the second sliding inclined surface of the driven inclined wedge, the other end of the bolt is connected with the driven inclined wedge through the nut, and the axial direction of the bolt is parallel to the first direction.
7. The locking device according to claim 6, wherein the driving wedge is provided with a rectangular abdicating hole for the bolt to pass through, and the length direction of the rectangular abdicating hole is parallel to the second direction.
8. The locking device according to claim 7, wherein the connecting part of the bed base is a guide rail, and a guide rail groove matched with the edge of the guide rail is formed on the contact surface of the pressure plate and the bearing base.
9. The locking device of claim 1, further comprising a control unit connected to the force application unit for controlling the force application unit to apply force.
10. A moment arm type torque balancing device comprising a carrier block and a bed base provided with a connection portion for contacting the carrier block, characterized in that the moment arm type torque balancing device further comprises at least one locking device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906134.2A CN110614512A (en) | 2019-09-24 | 2019-09-24 | Locking device and moment arm type torque balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906134.2A CN110614512A (en) | 2019-09-24 | 2019-09-24 | Locking device and moment arm type torque balancing device |
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| CN110614512A true CN110614512A (en) | 2019-12-27 |
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| CN201910906134.2A Pending CN110614512A (en) | 2019-09-24 | 2019-09-24 | Locking device and moment arm type torque balancing device |
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| GB497378A (en) * | 1937-05-24 | 1938-12-19 | G S P Guillemin Sergot & Pegar | Improved triple locking device particularly for use on drilling machines or the like |
| US3157091A (en) * | 1961-12-18 | 1964-11-17 | Michigan Tool Co | Feed mechanism |
| CN2920474Y (en) * | 2006-07-24 | 2007-07-11 | 天津市亚西拉伸机械有限公司 | Digital controlled hydraulic stretching machine |
| CN102990095A (en) * | 2012-11-30 | 2013-03-27 | 宁夏新瑞长城机床有限公司 | Hydraulic automatic locking device of horizontal numerically controlled lathe tailstock |
| CN206509746U (en) * | 2017-01-22 | 2017-09-22 | 东莞市巨清机床有限公司 | Numerical control bed-type milling machine base |
| CN108032091A (en) * | 2017-11-25 | 2018-05-15 | 湖南巨人机床集团有限公司 | Numerical control bed-type milling machine hard rail base |
| CN107866581A (en) * | 2017-12-12 | 2018-04-03 | 上海机床厂有限公司 | CNC heavy-duty horizontal lathe tailstock clamp system |
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Application publication date: 20191227 |