CN110802427B - But machining presss from both sides anchor clamps subassembly of tight work piece with both ends clamp - Google Patents
But machining presss from both sides anchor clamps subassembly of tight work piece with both ends clamp Download PDFInfo
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- CN110802427B CN110802427B CN201911185013.XA CN201911185013A CN110802427B CN 110802427 B CN110802427 B CN 110802427B CN 201911185013 A CN201911185013 A CN 201911185013A CN 110802427 B CN110802427 B CN 110802427B
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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Abstract
The invention discloses a clamp assembly capable of clamping workpieces at two ends for machining, which mainly comprises a central clamp block for controlling clamping, side clamp blocks symmetrically arranged at the left side and the right side of the central clamp block, and a clamp base for matching the central clamp block to move up and down; the cross section of the central clamp block is in an inverted trapezoid shape, the inclined planes at the two sides of the central clamp block are respectively provided with a convex block used for being in sliding connection with the side clamp blocks, and the center of the upper top surface of the central clamp block is provided with a through hole; the cross section of the side clamp block is in a right trapezoid shape, the inclined surface of the side clamp block and the convex block are provided with sliding grooves, and the vertical surface of the side clamp block is provided with a fixing hole for fixing a clamping plate; the clamp base is provided with a slide rail pedestal at the position corresponding to the through hole of the central clamp block, a slide rail is arranged in the slide rail pedestal, a slidable slide block is arranged in the slide rail, a control rod is arranged on the slide block, and the upper end of the control rod penetrates through the through hole. The clamping device can simultaneously clamp clamping pieces with different sizes on two sides, and effectively improves the working efficiency of the clamping operation of the clamp.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a clamp assembly capable of clamping workpieces at two ends for machining.
Background
The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. The fixture generally comprises a positioning element (for determining the correct position of a workpiece in the fixture), a clamping device, a tool setting guide element (for determining the relative position of the tool and the workpiece or guiding the direction of the tool), an indexing device (for enabling the workpiece to complete the processing of a plurality of stations in one-time installation, including a rotary indexing device and a linear movement indexing device), a connecting element, a fixture body (a fixture base), and the like.
In our production and processing, often meet and press from both sides tightly two kinds of work pieces of different width, need carry out continuous processing moreover on the production line, if carry out the one-to-one to anchor clamps and work piece and press from both sides tightly, this demand to anchor clamps is huge, and this is also comparatively huge to the processing and clamping manpower and materials that consume of work piece, consequently, design the improvement our mechanical production machining efficiency that can press from both sides the anchor clamps subassembly of tight both ends work piece simultaneously.
Disclosure of Invention
In order to solve the technical problem, the invention provides a clamp assembly capable of clamping workpieces at two ends for machining.
The invention has the technical scheme that the clamp assembly capable of clamping workpieces at two ends for machining mainly comprises a central clamp block for controlling clamping, side clamp blocks symmetrically arranged at the left side and the right side of the central clamp block, and a clamp base for matching the central clamp block to move up and down;
the section of the central clamp block is in an inverted trapezoid shape, the inclined planes at the two sides of the central clamp block are respectively provided with a convex block used for being in sliding connection with the side clamp blocks, and the center of the upper top surface of the central clamp block is provided with a through hole;
the cross section of the side clamp block is in a right trapezoid shape, the inclined surface of the side clamp block and the protruding block are provided with sliding grooves, and the vertical surface of the side clamp block is provided with a fixing hole for fixing a clamping plate;
the fixture base is provided with a slide rail pedestal corresponding to the through hole of the central fixture block, a slide rail is arranged in the slide rail pedestal, a slidable slide block is arranged in the slide rail, a control rod is arranged on the slide block, and the upper end of the control rod penetrates through the through hole and is used for controlling the central fixture block to move up and down. The clamp assembly can simultaneously clamp the clamping pieces with different sizes on two sides through the matching action of the central clamp block and the two side clamp blocks, and can effectively improve the working efficiency of the clamp in a production line.
Further, the spout is the dovetail groove, the lug is the trapezoidal block with dovetail groove complex, the contained angle of dovetail groove both sides is 60. According to the invention, through the design that the sliding groove is the trapezoidal groove and the design that the convex block is the trapezoidal block, the matching effect of the sliding groove and the convex block can be improved, and through the design that the included angle is 60 degrees, the transverse movement between the central clamp block and the side clamp block can be prevented.
Further, the clamp assembly is provided with a U-shaped clamping base, the clamp assembly is placed on the U-shaped clamping base in a sliding mode through the clamp base, a cushion block is arranged between the clamp base and the U-shaped clamping base, and the U-shaped clamping base is used for being matched with two clamping plates of the clamp assembly to clamp a workpiece. The U-shaped clamping base is arranged, so that the clamping operation of two clamping pieces with different sizes can be effectively carried out by matching the clamping assembly, the working efficiency of the clamping assembly is improved, and the operation is simplified.
Furthermore, a limiting convex ring is arranged at the upper part in the through hole; the slide rail is T type slide rail, the slider is T type slider, the control lever is hexagon socket head cap screw, and its screw hole that is equipped with the slider is connected, threaded hole is equipped with enough space and makes the control lever rotate from top to bottom to realize central anchor clamps piece downstream and make the limit anchor clamps piece of its both sides move to the outside along the anchor clamps base, and make splint cooperation U type press from both sides tight base and press from both sides tightly the clamp. The limiting convex ring is arranged at the upper part in the through hole and can be effectively matched with the control rod to move the central clamp block downwards, the T-shaped slide rail and the T-shaped slide block are selected as the slide rail and the slide block to effectively prevent the slide block and the slide rail from longitudinally moving, the hexagon socket head cap screw is selected as the control rod and is matched with the threaded hole of the slide block, the cost is low, and the function of the control rod can be met.
According to the technical scheme, the clamp assembly enables the central clamp block to move downwards by rotating the control rod through the inner hexagonal wrench.
According to another technical scheme, the clamp assembly enables the central clamp block to move downwards by rotating the control rod through the control assembly.
Further, the control assembly comprises a transmission assembly and an oil control assembly;
the transmission assembly comprises a transmission shell, a central rod and a transmission piece; the central rod is arranged in the middle of the inner part of the transmission shell, the middle part of the central rod is provided with a ring groove, and the two transmission parts are respectively arranged in the transmission shell at the two ends of the central rod;
the transmission part comprises a bottom plate, a rack rail, a transmission rack, a driven rack, a central gear, a guide rail and a guide rod; the two rack rails are respectively positioned at two ends of the long edge of the bottom plate, the two rack rails are respectively and correspondingly provided with one driven rack which is respectively connected with the rack rails in a sliding manner through pulleys, the central gear is arranged at the center of the bottom plate and is provided with an upper layer of tooth surface and a lower layer of tooth surface, the lower layer of tooth surface of the central gear is respectively meshed with the two driven racks, the transmission rack is arranged right above the driven rack at one end and is meshed with the upper layer of tooth surface of the central gear, the outer side surface of the transmission rack is connected with the side surface of the rack rail at one corresponding side in a sliding manner through a sliding part, the guide rail is arranged on the transmission rack in a vertical direction with the transmission rack, a transmission belt wheel is arranged above the inner side of the guide rail and is rotatably connected with the upper top surface in the transmission shell, one end of the guide rod is fixedly connected with the transmission belt wheel, and the other end of the guide rail is connected with the guide rail in a sliding manner through pulleys;
the ring grooves of the central rod are respectively connected with the transmission belt wheels of the two transmission parts through a transmission belt; the transmission shell is characterized in that the positions of two side surfaces of the transmission shell, which correspond to the positions of the driven racks, are respectively provided with a transmission hole, the transmission holes are respectively provided with a transmission rod used for being connected with an oil control assembly, the positions of the upper top surface and the lower bottom surface of the transmission shell, which correspond to the positions of the central rod, are respectively provided with a knob rod and a control head, the control heads are connected with the central rod through telescopic rods sleeved with springs, and the control heads are ball head parts of a ball head inner hexagon spanner;
the two oil control assemblies are respectively positioned at two ends of the upper top surface of the central clamp block corresponding to the side clamp blocks, and each oil control assembly comprises an oil storage bin, an oil control bin and an oil pumping push plate; the oil distribution device is characterized in that an oil distribution groove is formed in the inner wall, close to the joint of the clamp block, of the oil control bin and communicated with a plurality of oil pumping pipes, an oil pumping push plate is arranged on one side, close to the transmission assembly, of the oil control bin, the oil pumping push plate is connected with a transmission rod through a connecting rod, the oil storage bin is arranged on the upper top face of the oil control bin and communicated with the middle of each oil pumping pipe through a guide pipe, a piston is arranged in each oil pumping pipe, a piston rod is arranged on each piston and penetrates through the wall of each oil pumping pipe and is connected with the oil pumping push plate, a sealing ring is arranged at the joint of each piston rod, a plurality of oil guide pipes are arranged at one end, far away from the oil distribution groove, of each oil pumping pipe and communicated with the oil distribution groove, a plurality of oil falling holes penetrating through the oil control bin and communicated to the center clamp block are formed in the bottom of the oil distribution groove, and one oil hole is arranged at the position, corresponding to each falling oil hole, of the center clamp block, and corresponds to the oil hole. According to the invention, through the arrangement of the control assembly, the purpose of quickly operating the clamp assembly can be realized without additionally finding tools such as a wrench and the like, meanwhile, the transmission rods on the two sides of the transmission assembly can reciprocate through the arrangement of the transmission assembly and are matched with the oil control assembly to carry out oil conveying operation, the structural design of the oil control assembly can be effectively matched with the characteristics of the transmission assembly, the oil pumping pipe is communicated with the oil storage bin through the middle part and is matched with the action of the oil guide pipe, so that the oil pumping pipe can realize the function of feeding oil into the oil distribution tank by the reciprocating motion of the piston, and the control assembly can reduce the friction coefficient of the central clamp block and the side clamp blocks and delay the service life of the clamp assembly.
Furthermore, the connecting ends of the connecting rods and the transmission rod are respectively provided with threads and are clamped through long nuts, one side of the short side of the transmission assembly is provided with a rotating shaft which is rotatably connected with the central clamp block, the other corresponding end of the transmission assembly is provided with a bolt fixing piece, and the bolt fixing piece is in threaded connection with a threaded hole which is arranged at the position corresponding to the central clamp block through a bolt. Through this structural design, can make the control assembly carry out the operation that one end opened and shut, can be convenient for the maintenance of anchor clamps subassembly.
Furthermore, the oil holes arranged on the central clamp block are all inclined by 30 degrees, the other end of the oil holes is communicated with the upper end of the inclined surface of the central clamp block, and the inclined surface of the central clamp block is provided with a honeycomb net-shaped oil groove. Through the netted oil groove design of honeycomb, the angle design of cooperation oilhole perpendicular to limit anchor clamps piece can make evenly distributed such as machine oil in the contact surface of central anchor clamps piece and limit anchor clamps piece, reduces coefficient of friction between, prolongs anchor clamps subassembly's life simultaneously.
The use method of the clamp assembly comprises the following steps:
the working method of the clamp assembly comprises the steps that the clamp assembly is arranged on the inner bottom surface of a U-shaped clamping base through a cushion block, then two clamping plates are respectively connected and fixed with two fixing holes of two side clamp blocks through two groups of two bolts, then two clamping pieces with different sizes are respectively placed on the two clamping plates of the clamp assembly and the U-shaped clamping base, then a rotating control rod is operated to enable a central clamp block to move downwards, the side clamp blocks move towards two sides through the matching of a convex block and a sliding groove and the action of an inclined plane, and the two clamping pieces are clamped;
a control method of a control lever, which controls a rotation control lever by using an allen key;
another control method of the control lever is that the control lever is controlled to rotate by using a control assembly, and the working method of the control assembly is as follows:
arranging a control assembly on a central clamp block of an original clamp assembly, welding a transmission assembly of the control assembly with the central clamp block through a rotating shaft, connecting the other side of the control assembly with a threaded hole of the central clamp block through a bolt fixing piece through a bolt, enabling a control head to be connected with a control rod, and then enabling each transmission rod to be in butt joint with a connecting rod and fixed through a long nut;
the transmission assembly controls the central rod to rotate through the knob rod, so that the control head drives the control rod to rotate, the distance between the control head and the control rod is automatically compensated through the telescopic rod sleeved with the spring during movement, the transmission belt wheel rotates under the action of the annular groove, the transmission belt and the transmission belt wheel during rotation of the central rod, the guide rod rotates and is matched with the pulley to move along the guide rail, the transmission rack reciprocates, driven racks on two sides of the central gear reciprocate towards one side direction respectively under the action of the transmission rack and the central gear, and then the oil pumping push plate reciprocates through the matching of the transmission rod and the connecting rod;
pump oil subassembly, reciprocating motion through the pump oil push pedal, make each piston rod, the piston carries out reciprocating motion along the pump oil pipe, the normal state position of piston is the middle part, when carrying out reciprocating motion, when the piston promotes forward, through the pipe to the internal oil fall of pump oil pipe rear side pipe, when the piston promotes backward, through the pipe to the internal oil fall of pump oil pipe front side pipe, so that the oil distribution groove guarantees the transport of machine oil constantly at well core rod rotation in-process, fall to the oilhole with machine oil through the oilhole, the effect through each oilhole makes machine oil pass through the contact surface of the even direction center anchor clamps piece of oil groove and limit anchor clamps piece.
The invention has the beneficial effects that:
(1) the clamp assembly can simultaneously clamp the clamping pieces with different sizes on two sides through the matching action of the central clamp block, the two side clamp blocks, the clamp base and the U-shaped clamping base, and can effectively improve the working efficiency of clamp clamping operation in machining.
(2) The control assembly of the invention can realize the purpose of quickly operating the clamp assembly without additionally finding tools such as a spanner.
(3) The control assembly is arranged by matching the transmission assembly and the oil control assembly, and the oil pumping pipe can realize the function that the oil can be delivered into the oil distribution groove by the reciprocating motion of the piston through the rotation of the central rod, so that the friction coefficient of the central clamp block and the side clamp blocks can be reduced by the control assembly, and the service life of the clamp assembly is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the clamp assembly of the present invention.
FIG. 2 is a schematic view of the overall structure of the clamp assembly and the U-shaped clamping base of the present invention.
FIG. 3 is a side view of the clamp assembly of the present invention.
FIG. 4 is an overall external view of the edge clamp block of the present invention.
FIG. 5 is an overall external view of the center clamp block of the present invention.
FIG. 6 is a schematic top view of the center clamp block of the present invention.
Fig. 7 is a cross-sectional view at a-a of fig. 6.
Fig. 8 is an overall top view of the control assembly of the present invention.
Fig. 9 is a schematic view of the overall structure of the control assembly of the present invention.
Fig. 10 is an enlarged view of fig. 9 at B.
FIG. 11 is a schematic view of the overall structure of the transmission member of the present invention.
FIG. 12 is a schematic view showing the connection relationship between the sun gear and the driving and driven racks according to the present invention.
FIG. 13 is a schematic view of the overall structure of the core rod of the present invention.
Fig. 14 is an overall external view of a center jig block in embodiment 2 of the present invention.
Wherein, 1-a central clamp block, 11-a convex block, 12-a through hole, 13-a limit convex ring, 14-an oil hole, 15-an oil groove, 2-an edge clamp block, 21-a sliding groove, 22-a fixed hole, 3-a clamp base, 31-a sliding rail pedestal, 32-a sliding rail, 33-a sliding block, 34-a control rod, 4-a clamping plate, 5-a U-shaped clamping base, 51-a cushion block, 6-a transmission component, 61-a transmission shell, 62-a central rod, 63-a ring groove, 64-a transmission belt, 65-a transmission hole, 66-a transmission rod, 67-a knob rod, 68-a control head, 69-a rotating shaft, 7-a transmission piece, 71-a bottom plate, 72-a rack rail, 73-a transmission rack, 74-a driven rack, 75-central gear, 76-guide rail, 77-guide rod, 78-pulley, 79-driving belt wheel, 8-oil control component, 81-oil storage bin, 82-oil control bin, 83-oil pumping push plate, 84-oil distribution tank, 841-oil dropping hole, 85-oil pumping pipe, 86-connecting rod, 87-guide pipe, 88-piston, 881-piston rod, 89-oil guiding pipe and 9-bolt fixing piece.
Detailed Description
Example 1
As shown in fig. 1, a clamp assembly capable of clamping workpieces at two ends for machining mainly comprises a central clamp block 1 for controlling clamping, side clamp blocks 2 symmetrically arranged at the left side and the right side of the central clamp block 1, and a clamp base 3 for matching the central clamp block 1 to move up and down;
as shown in fig. 5, 6 and 7, the cross section of the central clamp block 1 is in an inverted trapezoid shape, the inclined surfaces at two sides of the central clamp block are respectively provided with a convex block 11 for being slidably connected with the side clamp blocks 2, and the center of the top surface of the central clamp block 1 is provided with a through hole 12;
as shown in fig. 3 and 4, the cross section of the side clamp block 2 is in a right trapezoid shape, a sliding groove 21 is arranged between the inclined surface of the side clamp block and the projection 11, and a fixing hole 22 for fixing the clamping plate 4 is arranged on the vertical surface of the side clamp block 2; the sliding groove 21 is a trapezoidal groove, the projection 11 is a trapezoidal block matched with the trapezoidal groove, and the included angle of two sides of the trapezoidal groove is 60 degrees. According to the invention, through the design that the sliding groove 21 is a trapezoidal groove and the design that the convex block 11 is a trapezoidal block, the matching effect of the sliding groove 21 and the convex block 11 can be improved, and through the design that the included angle is 60 degrees, the transverse movement between the central clamp block 1 and the side clamp block 2 can be prevented.
As shown in fig. 1 and 3, a slide rail seat 31 is disposed at a position of the clamp base 3 corresponding to the through hole of the center clamp block 1, a slide rail 32 is disposed in the slide rail seat 31, a slidable slide block 33 is disposed in the slide rail 32, a control rod 34 is disposed on the slide block 33, and an upper end of the control rod 34 passes through the through hole 12 to control the center clamp block 1 to move up and down. The clamp assembly can simultaneously clamp the clamping pieces with different sizes on two sides through the matching action of the central clamp block 1 and the two side clamp blocks 2, and can effectively improve the working efficiency of the clamp in a production line.
As shown in fig. 2, the clamp assembly is provided with a U-shaped clamping base 5, the clamp assembly is placed on the U-shaped clamping base 5 through the clamp base 3 in a sliding manner, a cushion block 51 is arranged between the clamp base 3 and the U-shaped clamping base 5, and the U-shaped clamping base 5 is used for clamping a workpiece by matching with two clamping plates 4 of the clamp assembly. The U-shaped clamping base 5 is arranged, so that the clamping operation of two clamping pieces with different sizes can be effectively carried out by matching with the clamp assembly, the working efficiency of the clamp assembly is improved, and the operation is simplified.
As shown in fig. 7, a limit convex ring 13 is arranged at the upper part in the through hole 12; as shown in fig. 3, the slide rail 32 is a T-shaped slide rail, the slide block 33 is a T-shaped slide block, the control rod 34 is a hexagon socket head cap screw, and is connected to a threaded hole provided in the slide block 33, and a sufficient space is provided in the threaded hole to allow the control rod 34 to rotate up and down, so that the center clamp block 1 moves down and the side clamp blocks 2 at both sides move outward along the clamp base 3, and the clamp plate 4 is matched with the U-shaped clamping base 5 to clamp the clamp. The gripper assembly moves the central gripper block 1 downwards by turning the control rod 34 with a socket head wrench. The limiting convex ring 13 is arranged at the upper part in the through hole 12 and can be effectively matched with the control rod 34 to move the central clamp block 1 downwards, meanwhile, a T-shaped slide rail and a T-shaped slide block are selected as the slide rail 32 and the slide block 33 to effectively prevent the slide block 33 and the slide rail 32 from generating longitudinal displacement, an inner hexagonal bolt is selected as the control rod 34 and is matched with a threaded hole of the slide block 33, the cost is low, and the function of the control rod 34 can be met.
The use method of the clamp assembly comprises the following steps:
the working method of the clamp assembly comprises the steps that the clamp assembly is arranged on the inner bottom surface of a U-shaped clamping base 5 through a cushion block 51, then two clamping plates 4 are respectively connected and fixed with two fixing holes 22 of two side clamp blocks 2 through two groups of two bolts, then two clamping pieces with different sizes are respectively placed on the two clamping plates 4 of the clamp assembly and the U-shaped clamping base 5, then a rotating control rod 34 is operated to enable a central clamp block 1 to move downwards, the side clamp blocks 2 move towards two sides through the matching of a convex block 11 and a sliding groove 21 and the action of an inclined plane, and the two clamping pieces are clamped; the control lever 34 controls the rotation by using an allen wrench.
Example 2
This embodiment 2 is substantially the same as embodiment 1 except that, as shown in fig. 8, the clamp assembly rotates the control lever 34 by the control assembly to move the center clamp block 1 downward. The control assembly comprises a transmission assembly 6 and an oil control assembly 8;
as shown in fig. 9, the transmission assembly 6 includes a transmission housing 61, a center rod 62, a transmission member 7; the central rod 62 is arranged in the middle of the inner part of the transmission shell body 61, the middle part of the central rod 62 is provided with a ring groove 63, and the two transmission pieces 7 are respectively arranged in the transmission shell bodies 61 at the two ends of the central rod 62;
as shown in fig. 11 and 12, the transmission member 7 includes a base plate 71, a rack rail 72, a transmission rack 73, a driven rack 74, a sun gear 75, a guide rail 76, and a guide rod 77; two rack rails 72 are provided, which are respectively located at both ends of the long side of the base plate 71, one driven rack 74 is provided for each of the two rack rails 72, which are slidably connected to the rack rails 72 through pulleys 78, respectively, a sun gear 75 is provided at the center of the base plate 71, the central gear 75 is provided with an upper layer of tooth surfaces and a lower layer of tooth surfaces, the lower layer of tooth surfaces of the central gear 75 are respectively meshed with the two driven racks 74, the transmission rack 73 is arranged right above the driven rack 74 at one end and meshed with the upper layer of tooth surfaces of the central gear 75, the outer side surface of the transmission rack 73 is in sliding connection with the side surface of the rack rail 72 at one corresponding side through a sliding part 78, a guide rail 76 is arranged on the transmission rack 73 in a vertical direction with the transmission rack 73, a transmission belt pulley 79 is arranged above the inner side of the guide rail 76, the transmission belt pulley 79 is rotatably connected with the upper top surface in the transmission shell 61, one end of a guide rod 77 is fixedly connected with the transmission belt pulley 79, and the other end of the guide rod is in sliding connection with the guide rail 76 through a pulley 78;
as shown in fig. 9 and 13, the ring grooves 63 of the central rod 62 are each connected to a respective drive pulley 79 of the two transmission elements 7 by means of a drive belt 64; the two side surfaces of the transmission shell 61 and the corresponding positions of the driven racks 74 are respectively provided with a transmission hole 65, the transmission holes 65 are respectively provided with a transmission rod 66 used for being connected with the oil control assembly 8, the positions of the upper top surface and the lower bottom surface of the transmission shell 61, which correspond to the positions of the central rod 62, are respectively provided with a knob rod 67 and a control head 68, the control head 68 is connected with the central rod 62 through a telescopic rod sleeved with a spring, and the control head 68 is a ball head part of a ball head inner hexagon wrench;
as shown in fig. 9 and 10, two oil control assemblies 8 are provided and are respectively located at two ends of the upper top surface of the central clamp block 1 corresponding to the side clamp blocks 2, and each oil control assembly 8 comprises an oil storage bin 81, an oil control bin 82 and an oil pumping push plate 83; an oil distribution groove 84 is arranged on the inner wall of the oil control bin 82 close to the joint of the clamp blocks, the oil distribution groove 84 is communicated with a plurality of pump oil pipes 85, an oil pumping push plate 83 is arranged on one side of the oil control bin 82 close to the transmission assembly 6, the oil pumping push plate 83 is connected with the transmission rod 66 through a connecting rod 86, the oil storage bin 81 is arranged on the upper top surface of the oil control bin 82, and is communicated with the middle part of each pump oil pipe 85 through a conduit 87, a piston 88 is arranged in each pump oil pipe 85, a piston rod 881 is arranged on the piston 88, the piston rod 881 penetrates through the wall of the pump oil pipe 85 and is connected with the pump oil push plate 83, and the joint is provided with a sealing ring, one end of the pump oil pipe 85 far away from the oil distribution groove 84 is provided with a plurality of oil guide pipes 89 communicated with the oil distribution groove 84, the bottom of the oil distribution groove 84 is provided with a plurality of oil falling holes 841 penetrating through the oil control bin 82 and communicated to the central clamp block 1, and the positions of the central clamp block 1 corresponding to the oil falling holes 841 are respectively provided with an oil hole 14 corresponding to the oil falling hole. According to the invention, through the arrangement of the control assembly, the purpose of quickly operating the clamp assembly can be realized without additionally finding tools such as a wrench and the like, meanwhile, the transmission rods 66 on the two sides of the transmission assembly 6 can reciprocate through the arrangement of the transmission assembly 6, and oil conveying operation can be carried out by matching with the oil control assembly 8, the structural design of the oil control assembly 8 can effectively match with the characteristics of the transmission assembly 6, the oil pumping pipe 85 is communicated with the oil storage bin 81 through the middle part and is matched with the action of the oil guide pipe 89, so that the oil pumping pipe 85 can realize the function of conveying oil into the oil distribution tank 84 by the reciprocating motion of the piston 88, and the control assembly can reduce the friction coefficient of the central clamp block 1 and the side clamp block 2 and delay the service life of the clamp assembly.
As shown in fig. 14, the oil holes 14 provided in the center jig block 1 are each inclined at 30 °, and the other end thereof communicates with the upper end of the inclined surface thereof, and the inclined surface of the center jig block 1 is provided with a honeycomb-mesh-shaped oil groove 15. Through the netted oil groove 15 design of honeycomb, the angle design of 14 perpendicular to limit anchor clamps pieces 2 of cooperation oilhole can make evenly distributed such as machine oil in the contact surface of central anchor clamps piece 1 and limit anchor clamps piece 2, reduces coefficient of friction between, prolongs the life of anchor clamps subassembly simultaneously.
As shown in fig. 8 and 9, the connecting ends of the connecting rod 86 and the transmission rod 66 are respectively provided with threads and clamped by long nuts, one side of the short side of the transmission assembly 6 is provided with a rotating shaft 69 rotatably connected with the central clamp block 1, the other corresponding end of the transmission assembly is provided with a bolt fixing piece 9, and the bolt fixing piece 9 is in threaded connection with a threaded hole arranged at the position corresponding to the central clamp block 1 through a bolt. Through this structural design, can make the control assembly carry out the operation that one end opened and shut, can be convenient for the maintenance of anchor clamps subassembly.
The use method of the clamp assembly comprises the following steps:
the working method of the clamp assembly comprises the steps that the clamp assembly is arranged on the inner bottom surface of a U-shaped clamping base 5 through a cushion block 51, then two clamping plates 4 are respectively connected and fixed with two fixing holes 22 of two side clamp blocks 2 through two groups of two bolts, then two clamping pieces with different sizes are respectively placed on the two clamping plates 4 of the clamp assembly and the U-shaped clamping base 5, then a rotating control rod 34 is operated to enable a central clamp block 1 to move downwards, the side clamp blocks 2 move towards two sides through the matching of a convex block 11 and a sliding groove 21 and the action of an inclined plane, and the two clamping pieces are clamped;
the control lever 34 controls the rotation of the control lever 34 by using a control assembly that operates as follows:
arranging a control assembly on a central clamp block 1 of an original clamp assembly, welding a transmission assembly 6 of the control assembly with the central clamp block 1 through a rotating shaft, connecting the other side of the control assembly with a threaded hole of the central clamp block 1 through a bolt fixing piece 9 through a bolt, enabling a control head 68 to be connected with a control rod 34, and then enabling each transmission rod 66 to be in butt joint with a connecting rod 86 and fixed through a long nut;
the transmission assembly 6 controls the rotation of the central rod 62 through the knob rod 67, so that the control head 68 drives the control rod 34 to rotate, the distance between the control head 68 and the control rod 34 is automatically compensated through a telescopic rod sleeved with a spring during the movement, the central rod 62 rotates through the action of the annular groove 63, the transmission belt 64 and the transmission belt pulley 79 during the rotation, so that the transmission belt pulley 79 rotates, the guide rod 77 rotates and is matched with the pulley 78 to move along the guide rail 76, the transmission rack 73 reciprocates, the driven racks 74 on two sides of the central gear 75 respectively reciprocate towards one side direction through the action of the transmission rack 73 and the central gear 75, and then the pump oil push plate 83 reciprocates through the matching of the transmission rod 66 and the connecting rod 86;
pump oil assembly 8, reciprocating motion through pump oil push pedal 83, make each piston rod 881, piston 88 carry out reciprocating motion along pump oil pipe 85, piston 88's normal position is the middle part, when carrying out reciprocating motion, when piston 88 promotes forward, through pipe 87 to the internal oil fall of pump oil pipe 85 rear side pipe, when piston 88 promotes backward, through pipe 87 to the internal oil fall of pump oil pipe 85 front side pipe, so that cloth 84 guarantees the transport of engine oil at the time of the rotatory in-process of central pole 62, through oil hole 841 with engine oil fall to oilhole 14, through the contact surface of each oilhole 14 effect messenger's engine oil through oil groove 15 evenly direction center anchor clamps piece 1 and limit anchor clamps piece 2.
Claims (6)
1. A clamp assembly capable of clamping workpieces at two ends for machining is characterized by mainly comprising a central clamp block (1) for controlling clamping, side clamp blocks (2) symmetrically arranged at the left side and the right side of the central clamp block (1), and a clamp base (3) for matching the central clamp block (1) to move up and down;
the cross section of the central clamp block (1) is in an inverted trapezoid shape, the inclined planes at the two sides of the central clamp block are respectively provided with a convex block (11) which is used for being in sliding connection with the side clamp blocks (2), the center of the upper top surface of the central clamp block (1) is provided with a through hole (12), and the upper part in the through hole (12) is provided with a limiting convex ring (13);
the section of the side clamp block (2) is in a right trapezoid shape, a sliding groove (21) is formed in the inclined surface of the side clamp block and the protruding block (11) in a matched mode, and a fixing hole (22) for fixing the clamping plate (4) is formed in the vertical surface of the side clamp block (2);
a slide rail pedestal (31) is arranged at the position, corresponding to the through hole of the central clamp block (1), of the clamp base (3), a slide rail (32) is arranged in the slide rail pedestal (31), a slidable slide block (33) is arranged in the slide rail (32), a control rod (34) is arranged on the slide block (33), and the upper end of the control rod (34) penetrates through the through hole (12) and is used for controlling the central clamp block (1) to move up and down;
the control rod (34) is a hexagon socket head cap screw and is connected with a threaded hole formed in the sliding block (33), and enough space is arranged in the threaded hole to enable the control rod (34) to rotate up and down, so that the center clamp block (1) moves downwards, the side clamp blocks (2) on two sides of the center clamp block move outwards along the clamp base (3), and the clamping plate (4) is matched with the U-shaped clamping base (5) to clamp a clamping piece;
the clamp assembly rotates the control rod (34) through the control assembly to enable the central clamp block (1) to move downwards; the control assembly comprises a transmission assembly (6) and an oil control assembly (8); the transmission assembly (6) comprises a transmission shell (61), a central rod (62) and a transmission piece (7); the central rod (62) is arranged in the middle of the inner part of the transmission shell (61), the middle of the central rod (62) is provided with a ring groove (63), and the two transmission pieces (7) are respectively arranged in the transmission shells (61) at the two ends of the central rod (62);
the transmission piece (7) comprises a bottom plate (71), a rack rail (72), a transmission rack (73), a driven rack (74), a central gear (75), a guide rail (76) and a guide rod (77); the rack rails (72) are arranged two and are respectively positioned at two ends of the long edge of the bottom plate (71), two rack rails (72) are respectively and correspondingly provided with one driven rack (74), the driven rack (74) is in sliding connection with the rack rails (72) through a pulley (78), the central gear (75) is provided with an upper layer of tooth surface and a lower layer of tooth surface, the lower layer of tooth surface of the central gear (75) is meshed with the driven rack (74), the transmission rack (73) is arranged right above one end of the driven rack (74) and is meshed with the upper layer of tooth surface of the central gear (75), the outer side surface of the transmission rack (73) is in sliding connection with the side surface of the rack rail (72) on one side corresponding to the transmission rack (73) through the pulley (78), the transmission rack (73) is vertically provided with the guide rail (76), the inner side of the guide rail (76) is provided with a transmission belt wheel (79), and the transmission belt wheel (79) is in rotating connection with the inner upper top surface of the transmission shell (61), one end of the guide rod (77) is fixedly connected with the transmission belt wheel (79), and the other end of the guide rod is in sliding connection with the guide rail (76) through a pulley (78);
the ring groove (63) of the central rod (62) is respectively connected with the transmission belt wheels (79) of the two transmission pieces (7) through a transmission belt (64); the oil control device is characterized in that the positions of two side faces of the transmission shell (61) corresponding to the positions of the driven racks (74) are respectively provided with a transmission hole (65), the transmission holes (65) are respectively provided with a transmission rod (66) used for being connected with the oil control assembly (8), the positions of the upper top face, the lower bottom face and the central rod (62) of the transmission shell (61) corresponding to the positions are respectively provided with a knob rod (67) and a control head (68), the control head (68) is connected with the central rod (62) through a telescopic rod sleeved with a spring, and the control head (68) is a ball head part of a ball head inner hexagon wrench;
the two oil control assemblies (8) are respectively positioned at two ends of the upper top surface of the central clamp block (1) corresponding to the side clamp blocks (2), and each oil control assembly (8) comprises an oil storage bin (81), an oil control bin (82) and an oil pumping push plate (83); the inner wall that accuse oil storehouse (82) is close to central anchor clamps piece junction is equipped with oil distribution groove (84), oil distribution groove (84) and a plurality of pump oil pipe (85) intercommunication, pump oil push pedal (83) set up the one side that is close to drive assembly (6) in accuse oil storehouse (82), pump oil push pedal (83) are connected with transfer line (66) through connecting pole (86), the last top surface of accuse oil storehouse (82) is located in oil storage storehouse (81), and communicate through pipe (87) with each pump oil pipe (85) middle part, be equipped with piston (88) in pump oil pipe (85), be equipped with piston rod (881) on piston (88), piston rod (881) run through in pump oil pipe (85) wall and be connected with pump oil push pedal (83) to be equipped with the sealing washer in its junction, the one end that pump oil pipe (85) kept away from oil distribution groove (84) is equipped with a plurality of oil guide pipe (89) and oil distribution groove (84) intercommunication, the oil distribution tank (84) is provided with a plurality of oil falling holes (841) which penetrate through the oil control bin (82) and are communicated to the central clamp block (1), and the positions of the central clamp block (1) corresponding to the oil falling holes (841) are respectively provided with an oil hole (14) corresponding to the oil falling holes.
2. The clamp assembly capable of clamping a workpiece at two ends for machining according to claim 1, wherein the sliding groove (21) is a trapezoidal groove, the projection (11) is a trapezoidal block matched with the trapezoidal groove, and the included angle of two sides of the trapezoidal groove is 60 degrees.
3. The clamp assembly capable of clamping workpieces at two ends for machining according to claim 1, wherein the clamp assembly is provided with a U-shaped clamping base (5), the clamp assembly is placed on the U-shaped clamping base (5) in a sliding mode through the clamp base (3), a cushion block (51) is arranged between the clamp base (3) and the U-shaped clamping base (5), and the U-shaped clamping base (5) is used for matching with two clamping plates (4) of the clamp assembly to clamp the workpieces.
4. A clamping assembly for clamping a workpiece at both ends for machining according to claim 1, characterized in that the clamping assembly also allows the central clamping block (1) to be moved downwards by turning the control rod (34) with a allen wrench.
5. The clamp assembly capable of clamping workpieces at two ends for machining according to claim 1, wherein the connecting ends of the connecting rods (86) and the transmission rods (66) are respectively provided with threads and clamped through long nuts, one side of the short side of the transmission assembly (6) is provided with a rotating shaft (69) which is rotatably connected with the central clamp block (1), the other corresponding end of the transmission assembly is provided with a bolt fixing piece (9), and the bolt fixing piece (9) is in threaded connection with a threaded hole which is arranged at a position corresponding to the central clamp block (1) through a bolt.
6. The clamping assembly capable of clamping workpieces at two ends for machining according to claim 1, wherein each of the central clamping block (1) and the oil dropping holes (841) are respectively provided with one oil hole (14) corresponding to the central clamping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185013.XA CN110802427B (en) | 2019-11-27 | 2019-11-27 | But machining presss from both sides anchor clamps subassembly of tight work piece with both ends clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185013.XA CN110802427B (en) | 2019-11-27 | 2019-11-27 | But machining presss from both sides anchor clamps subassembly of tight work piece with both ends clamp |
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| CN110802427A CN110802427A (en) | 2020-02-18 |
| CN110802427B true CN110802427B (en) | 2021-08-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111251044A (en) * | 2020-02-24 | 2020-06-09 | 东莞长盈精密技术有限公司 | Automatic feeding device |
| CN112936183B (en) * | 2021-04-07 | 2022-11-04 | 中建中新建设工程有限公司 | Rapid short pipe dismounting tool |
| CN113199420A (en) * | 2021-05-10 | 2021-08-03 | 苏州必思实精密机械有限公司 | Part machining accurate positioning clamp holder capable of being used in batches |
| CN113525713A (en) * | 2021-06-28 | 2021-10-22 | 中国飞机强度研究所 | Tight device in top |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7900897B2 (en) * | 2005-12-22 | 2011-03-08 | Ritchie Bonkowski | Workpiece clamping device and method |
| DE202007012219U1 (en) * | 2007-08-31 | 2007-12-13 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh | Hydraulic clamping jaw system |
| CN101590608A (en) * | 2009-04-21 | 2009-12-02 | 寿震森 | Lateral compressing block |
| CN205733971U (en) * | 2016-07-06 | 2016-11-30 | 苏州创捷自动化仪表实业有限公司 | A kind of practical two-way Set and Positioning boring grab |
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