CN111098223A - Abrasive flow polishing clamp for thin-wall cylindrical pipe - Google Patents
Abrasive flow polishing clamp for thin-wall cylindrical pipe Download PDFInfo
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- CN111098223A CN111098223A CN202010040456.6A CN202010040456A CN111098223A CN 111098223 A CN111098223 A CN 111098223A CN 202010040456 A CN202010040456 A CN 202010040456A CN 111098223 A CN111098223 A CN 111098223A
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- cylindrical pipe
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- 238000005498 polishing Methods 0.000 title claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 165
- 229910052742 iron Inorganic materials 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 39
- 238000005111 flow chemistry technique Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 235000000396 iron Nutrition 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/006—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor for grinding the interior surfaces of hollow workpieces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a clamp for polishing a thin-wall cylindrical pipe by abrasive flow, which consists of a thin-wall cylindrical pipe clamp part and an abrasive flow inlet and outlet device, wherein the thin-wall cylindrical pipe clamp is a flexible clamp, the thin-wall cylindrical pipe is matched and clamped on the working surface of a clamp body through V-shaped iron and double semicircular iron which are provided with rubber pads on the surfaces, the V-shaped iron and the double semicircular iron are fixed on the vertical surface of the clamp body through matching with two stepped circular shafts which are provided with variable-diameter springs, a handle is shaken during processing, the double semicircular iron is pushed forwards through a screw rod, the double semicircular iron is provided with a centering device, so that the thin-wall cylindrical pipe is clamped by a compression spring, the direction of the abrasive flow inlet and outlet pipe is adjusted through a four-rotating shaft mechanism, the rotating shaft mechanism is meshed through tooth profiles, an inlet pipe clamping device is provided with a spring adjusting opening, the clamp is convenient to mount, simple and reliable to use and suitable for abrasive flow polishing treatment of the thin-wall cylindrical pipe.
Description
Technical Field
The invention relates to the field of clamps, in particular to a thin-wall cylindrical pipe abrasive flow polishing clamp.
Background
The thin-wall cylindrical pipe is one of parts of various precision machines and instruments, and is easy to deform and generate clamping damage during machining and clamping due to the characteristic of thin pipe wall, and the inner surface of the thin-wall cylindrical pipe is easy to damage and ablate by the traditional grinding, laser machining and other methods during polishing of the inner surface of the thin-wall cylindrical pipe, so that the clamp adopts a flexible clamping technology and a method for polishing the inner surface of the thin-wall cylindrical pipe by adopting abrasive flow, and aims to reduce the clamping damage and the machining damage of a workpiece so as to facilitate better polishing.
Abrasive Flow Machining (AFM), also called extrusion honing, is a novel process technology for performing finish Machining such as surface polishing, chamfering and deburring on a workpiece under pressure by using a flowable viscoelastic polymer loaded with abrasives. The processing technology is particularly suitable for removing and polishing the burrs of the inaccessible areas such as complex surfaces of the inner cavity of the workpiece, internal crossed holes and the like.
The flexible clamping technology is based on the technology of processing workpiece appearance transition, and measures of a flexible criterion are as follows: the length of the constant cross-section rod is increased; the cross section mutation is avoided; and installing a buffer.
Disclosure of Invention
The invention aims to solve the problem that the inner hole wall of a thin-wall cylindrical pipe workpiece is difficult to polish in finish machining, and provides an abrasive flow polishing clamp for the thin-wall cylindrical pipe, which utilizes V-shaped iron, double semi-circular iron and a rubber pad matched with the double semi-circular iron to realize flexible clamping, increases the stress area of a clamped workpiece, thereby reducing the clamping damage of the workpiece, and utilizes a four-rotating-shaft mechanism matched with an abrasive flow polishing processing technology to ensure that the polishing is softer and the residual stress after the polishing is effectively reduced;
in order to solve the technical problems, the invention provides the following technical scheme: a thin-wall cylindrical pipe abrasive flow polishing clamp is characterized by comprising a thin-wall cylindrical pipe clamp and an abrasive flow inlet and outlet device, wherein the thin-wall cylindrical pipe clamp comprises a clamp body, an abrasive flow leakage plate, a clamp body bolt, a rubber pad matched with V-shaped iron, a rubber pad matched with double semi-circular iron, two stepped circular shafts, two variable-caliber springs, two clamp gaskets, two bolts and matched nuts, a handle frame and a cylindrical table screw rod and matched handle, the thin-wall cylindrical pipe clamp flexibly clamps a thin-wall cylindrical pipe, the two irons and the rubber pad are matched to buffer vibration generated during clamping of the thin-wall cylindrical pipe and increase vibration isolation friction force, two-point and two-surface positioning is performed during clamping of the thin-wall cylindrical pipe, so that the positioning area is increased, and the positioning is more reliable, the variable-caliber spring is matched with a stepped circular shaft to realize the fast loading and unloading of the thin-wall circular pipe, the abrasive flow inlet and outlet device consists of an abrasive flow inlet consisting of a four-rotating-shaft mechanism and a variable-caliber clamping device, and an abrasive flow outlet consisting of an abrasive flow leaking trough, a bent pipe and a flow control valve, the four-rotating-shaft mechanism consists of a connecting rod frame, a tooth-shaped sleeve matched with the tooth-shaped sleeve, a spring and a bolt, a tooth head sleeve oscillating bar, a connecting shaft sleeve nut and a threaded head oscillating bar, the variable-caliber clamping device consists of two clamping pieces, a long screw rod matched with the long screw rod, two springs and nuts and a short screw rod matched with the short screw rod, the abrasive flow inlet device realizes the clamping of the abrasive flow inlet pipe and the adjustment of the processing position and angle of the thin-wall cylindrical pipe, the flow control valve consists of a valve body, a valve core oscillating plate and a switch handle, the thin-wall cylindrical pipe abrasive flow processing clamp is matched with a special workbench for use, so that the mounting precision is ensured, and the operation stability of the device is improved;
further, preferably, the clamp body is installed on the special workbench through a bolt, the clamp body is provided with a threaded hole and a through hole for installing a positioning and clamping device, the horizontal upper surface of the clamp body is provided with two T-shaped grooves and an abrasive particle flow leakage plate installation groove, the two T-shaped grooves are used for guiding the double semicircular iron during clamping and returning and for the stability during operation, the abrasive particle flow leakage plate installation groove is used for accurately installing the abrasive particle flow leakage plate and does not generate an interference effect on the clamping and positioning of the thin-wall circular tube and the operation of the double semicircular iron;
furthermore, preferably, the thin-wall cylindrical pipe workpiece is positioned in a mode of one-surface two-iron positioning, the two irons are a V-shaped iron and a double-semicircular iron which are matched with a rubber gasket, the double-semicircular iron realizes surface positioning contact of the thin-wall cylindrical pipe workpiece, so that the complete positioning of the workpiece is realized, the rubber gasket is provided with a cylindrical rubber boss, the flexible clamping of the thin-wall cylindrical pipe workpiece is realized, the vibration generated during the clamping and abrasive flow polishing is reduced, the friction force of the clamping is increased, the stability of the clamping is realized, and the clamping damage to the workpiece is reduced;
preferably, the clamping and pushing device for the thin-wall cylindrical pipe clamp comprises two stepped circular shafts, two variable-caliber springs, two clamp gaskets, a handle frame and a matched handle of the cylindrical table screw rod, wherein one end of each stepped shaft is arranged on the clamp body, the other parts are sequentially provided with a V-shaped iron, a rubber gasket matched with the V-shaped iron, a variable-caliber spring, a double semicircular iron and a rubber gasket matched with the double semicircular iron, the large-caliber part of the variable-caliber spring faces towards the V-shaped iron so as to reduce the spring compression occupied area when the clamp clamps clamp, thereby realizing the clamping of the thin-wall cylindrical pipe workpiece with smaller caliber, one end of each clamp gasket and one end of each stepped circular shaft fix the back of the double semicircular iron by using bolts and nuts, the other end of each clamp gasket is matched with the cylindrical table screw rod, and the matched handle of the cylindrical table screw rod are arranged on the horizontal upper surface of the clamp, the back of the double semicircular iron is provided with a positioning hole, a handle is shaken during clamping, a cylindrical table screw rod penetrates through a handle frame and two clamp gaskets to feed forwards, the double semicircular iron is pushed to move to compress a variable-caliber spring, and the variable-caliber spring is matched with the V-shaped iron to clamp a workpiece;
further, preferably, the four-rotating-shaft mechanism comprises a connecting rod frame, a tooth-shaped sleeve, a spring and a bolt matched with the tooth-shaped sleeve, a tooth-head sleeve swing rod, a connecting shaft sleeve and a thread head swing rod, wherein an outer tooth-shaped table is arranged on the connecting rod frame, the tooth-shaped sleeve comprises a shaft sleeve and a shaft, the shaft sleeve is provided with an inner tooth-shaped table, the shaft end is provided with the outer tooth-shaped table close to the shaft sleeve, the other end is provided with a bolt hole, the inner tooth-shaped table in the tooth-shaped sleeve is meshed with the outer tooth-shaped table of the connecting rod frame to rotate around the outer tooth-shaped table, the tooth-head sleeve swing rod is arranged at the shaft end of the tooth-shaped sleeve and is meshed with the outer tooth-shaped table of the tooth-shaped sleeve to rotate around the outer tooth-shaped table, the spring and the bolt are arranged at the end of the tooth-shaped sleeve, the spring and, one end of the threaded head swing rod is provided with a threaded column, the other end of the threaded head swing rod is provided with a square groove and a screw through hole, and the end of the threaded column is arranged on the connecting shaft sleeve and rotates around the connecting shaft sleeve, so that the function of adjusting the polishing angle of the abrasive flow is realized;
further, preferably, the variable caliber clamping device consists of two clamping gaskets, a long screw rod matched with the clamping gasket, two springs and nuts, and a short screw rod matched with the nuts, the device is arranged at one end of a threaded head swing rod, the long screw is matched with a nut thereof and is arranged at a screw hole of the threaded head swing rod, a spring, two clamping pieces and a spring are sequentially arranged on a long screw rod, a cylindrical table is arranged at one end of each clamping piece, a through hole is arranged at the other end of each clamping piece, the cylindrical table is inserted into the square groove of the threaded head swing rod to realize the opening and closing of the two clamping gaskets for clamping the abrasive particle flow inlet pipe and the horizontal positioning of the two clamping gaskets, the spring realizes the free opening and closing angle and the fixing function of clamping and dismounting when the two clamping gaskets are clamped tightly, the through hole ends of the two clamping gaskets are fixed with the short screw and the matching nut, so that the abrasive flow inlet pipe is clamped;
preferably, the abrasive flow outlet device comprises an abrasive flow leaking trough, a bent pipe and a flow control valve, the abrasive flow leaking trough is arranged on the horizontal lower surface of the clamp body, accumulating the abrasive flow fluid leaked from the abrasive flow leakage plate, arranging a cylindrical external thread overflow port at the lower end of the abrasive flow leakage plate, arranging internal threads at two ends of the bent pipe, which is arranged on an overflow port of the cylindrical external thread of the material leaking groove, the flow control valve consists of a valve body, a valve core swinging plate and a switch handle, the two ends of the valve body are provided with cylindrical external threads, the top of the valve body is provided with a through hole, the valve core swinging plate consists of a large cylindrical table and a thin cylindrical column, one end of the thin cylindrical column is provided with the external threads, the cylindrical threaded end of the valve body penetrates through a through hole in the top of the valve body to be matched with the switch handle, when the handle is rotated, the valve core swinging plate rotates, the gap between the valve core swinging plate and the inner cavity of the valve body is adjusted, and the effects of adjusting the flow of the abrasive particle flow outlet and storing small-volume abrasive particle flow fluid are achieved.
Drawings
FIG. 1 is a general schematic view of a polishing jig for abrasive flow of thin-walled cylindrical tubes
FIG. 2 is a schematic view of a variable-caliber clamping device
FIG. 3 is a schematic view of a threaded head swing link
FIG. 4 is a schematic view of a tooth head cover swing link
FIG. 5 is a schematic view of a tooth form sleeve
FIG. 6 is a schematic view of a connecting rod rest
FIG. 7 is a schematic cross-sectional view of a connecting rod rest
FIG. 8 is a schematic view of the clamp
FIG. 9 is a bottom view of the clamp body
FIG. 10 is a schematic view of a V-iron
FIG. 11 is a front view of a V-shaped iron fitted with a rubber gasket
FIG. 12 is a schematic view of the back of a V-shaped iron fitted with a rubber gasket
FIG. 13 is a schematic view of an abrasive flow-leaking plate
FIG. 14 is a front view of a double semicircular iron-fitted rubber gasket
FIG. 15 is a front view of a rubber gasket with a double semicircular iron fit
FIG. 16 is a schematic front view of a double semicircular iron
FIG. 17 is a schematic view of the back of a double semicircular iron
FIG. 18 is a schematic view of a flow control valve assembly
FIG. 19 is a schematic view of a flow control valve spool
FIG. 20 is a schematic view of a flow control valve handle
FIG. 21 is a schematic view of a clamp shim
In the figure: 1. an abrasive particle flow inlet pipe, 2, a variable-caliber clamping device, 2-1, two clamping jaws, 2-2, two springs, 2-3, a long screw, 2-4, a long screw nut, 2-5, a short screw nut, 2-6, a short screw, 3, a threaded head swing rod, 3-1, a thread table, 3-2, a threaded head swing rod hole, 3-3, a square groove, 4, a connecting shaft sleeve, 5, a tooth head sleeve swing rod, 5-1, a cylindrical tooth table, 5-2, a threaded through hole, 6, a tooth-shaped sleeve, 6-1, a shaft sleeve, 6-2, a tooth-shaped sleeve shaft end, 6-3, a shaft, 6-4, a shaft end internal threaded hole, 7, a connecting rod frame, 7-1, an external tooth table, 7-2, two symmetrical stepped threaded holes, 8, a clamp body, 8-1, Two threaded holes of a fixture body, 8-2 threaded through holes of four fixture bodies, 8-3T-shaped slotted holes, 8-4T-shaped grooves, 8-5 threaded holes of the fixture body, 8-6 threaded through holes of four fixture bodies, 8-7 threaded through holes of four fixture bodies, 9V-shaped iron, 9-1 threaded holes of V-shaped iron, 9-2 stepped through holes of V-shaped iron, 10 variable-caliber springs, 11 and V-shaped iron matched rubber gaskets, 11-1 threaded holes of the V-shaped iron matched rubber gaskets, 11-2 threaded holes of the V-shaped iron matched rubber gaskets, 12 cylindrical platforms of the V-shaped iron matched rubber gaskets, abrasive particle flow leakage plates, 13, double semicircular iron rubber gaskets, 13-1 threaded holes of double semicircular iron rubber gaskets, 13-2 threaded holes of the double semicircular iron rubber gaskets, 14, double semicircular iron, 14-1 threaded holes of the double semicircular iron rubber gaskets, 14-2 threaded holes of the double semicircular iron, The grinding wheel comprises a double-semicircular iron shaft hole, 14-2 parts, eight cylindrical holes, 14-3 parts, a double-semicircular iron positioning hole, 15 parts, a bent pipe, 16 parts, a flow control valve, 16-1 parts, a valve body, 16-2 parts, a valve core swinging plate, 16-3 parts, a switch handle, 17 parts, an abrasive particle flow leakage groove, 18 parts, two stepped circular shafts, 19 parts, four clamp body bolts, 20 parts, a handle frame, 21 parts, a cylindrical table screw rod, 22 parts, two clamp gaskets, 23 parts and a thin-wall cylindrical pipe workpiece
Detailed Description
The invention provides a polishing clamp for abrasive flow of a thin-wall cylindrical pipe, and the technical scheme in the embodiment of the invention is clearly and completely described below by combining with the attached drawings in the embodiment of the invention, and obviously, the described embodiment is only a part of the embodiment of the invention, but not all the embodiment. Other embodiments, which can be derived by one of ordinary skill in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
The invention mainly comprises two parts, namely a thin-wall cylindrical pipe clamp part and an abrasive particle flow inlet and outlet device part. The thin-wall cylindrical pipe clamp part consists of a clamp body (8), an abrasive particle flow leakage plate (12), clamp body bolts (19), a rubber pad (11) matched with a V-shaped iron (9), a rubber pad (13) matched with a double semicircular iron (14), two stepped circular shafts (18), two variable-caliber springs (10), two clamp gaskets (22), two nuts matched with the bolts, a handle frame (20) and a cylindrical table screw rod (21) matched with a handle, the thin-wall cylindrical pipe clamp part passes through four threaded holes (8-6) through the four clamp body bolts (19) and is installed on a special workbench, the clamp body (8) is provided with two threaded holes (8-1) for installing an abrasive particle flow inlet device and four threaded through holes (8-2) for fixing the V-shaped iron (9) and installing the two stepped circular shafts (18), a T-shaped slotted hole (8-3) for installing an abrasive particle flow leakage groove (17), two T-shaped grooves (8-4) for guiding and sliding a double semicircular iron (14), two threaded holes (8-5) for installing a handle frame (20), four threaded through holes (8-6), a clamp body (8) arranged on a special workbench, the V-shaped iron (9) provided with two threaded holes (9-1) and two stepped through holes (9-2) and arranged at the position of the vertical surface hole (8-2) of the clamp body (8) through two screws, two cylindrical platforms (11-2) on a rubber pad (11) matched with the V-shaped iron are arranged at the positions of the two threaded holes (9-1) on the V-shaped iron (9), two stepped circular shafts (18) provided with steps, one end of each of the two stepped circular shafts is arranged in the stepped through hole (9-2) of the V-shaped iron (9), the other end is provided with a through hole, the large-caliber ends of the two variable-caliber springs (10) face towards the V-shaped iron (9) and are respectively arranged on the two stepped circular shafts (18), then eight cylindrical platforms (13-2) on the rubber pads (13) are arranged at eight cylindrical holes (14-2) on the double semicircular iron (14), then the rubber pads (13) matched with the double semicircular iron (14) are arranged at the other shaft ends of the two stepped circular shafts (18), two clamp gaskets (22) are arranged at the back parts of the double semicircular iron (14) and at the other shaft ends of the two stepped circular shafts (18), the two clamp gaskets (22) are provided with holes (22-1) and (22-2), the holes (22-1) are aligned to the through hole ends of the two stepped circular shafts (18) and are matched with bolts and nuts for fixation, then a handle frame (20) and a cylindrical platform screw rod (21) are arranged to be matched with a handle, the handle frame (20) is provided with two threaded holes and is matched with screws to be arranged at two threaded holes (8-5) on the clamp body (8), finally, the cylindrical table screw rod (21) and the matched handle sequentially penetrate through the handle frame (20) and holes (22-2) on two clamp gaskets (22) to be aligned with a positioning hole (14-3) on the double semicircular iron (14), and the positioning hole (14-3) is arranged for positioning the cylindrical table screw rod (21) when the handle is shaken, so that the integral installation work of the thin-wall cylindrical pipe clamp part is realized.
The abrasive particle flow inlet and outlet device comprises an abrasive particle flow inlet, an abrasive particle flow leaking groove (17), a bent pipe (15) and a flow control valve (16), wherein the abrasive particle flow inlet and the abrasive particle flow leaking groove are formed by a four-rotating-shaft mechanism and a variable-caliber clamping device (2), the abrasive particle flow outlet is formed by a connecting rod frame (7), a tooth-shaped sleeve (6) and a matched spring and bolt, a tooth head sleeve swing rod (5), a connecting shaft sleeve (4), a connecting shaft sleeve nut and a threaded head swing rod (3), two symmetrical stepped threaded holes (7-2) are formed in the connecting rod frame (7), the two symmetrical stepped threaded holes (7-2) are aligned to two threaded holes (8-1) in a clamp body (8) during installation and are fixed by the matched bolt, the shaft sleeve (6) 6-1) of the tooth-shaped sleeve (6) is installed at the outer tooth-shaped platform (7-1) of the connecting rod frame (7), and the cylindrical tooth head sleeve swing rod (5-1) is installed at -2), a spring is arranged at the shaft end part of the tooth-shaped sleeve (6), a screw is arranged at an inner threaded hole (6-4) at the shaft end of the tooth-shaped sleeve (6) for fixation, the coupling sleeve (4) is arranged at the threaded through hole (5-2) of the tooth-head sleeve swing rod (5), the thread-head swing rod (3) is arranged at the coupling sleeve (4), the other end of the thread-head swing rod (3) is provided with a variable-caliber clamping device (2) which consists of two clamping clips (2-1), a long screw rod (2-3) matched with the two springs (2-2) and nuts (2-4), and a short screw rod (2-6) matched with the nuts (2-5), one end of the two clamping clips (2-1) is provided with a cylindrical table, the other end of the two clamping clips is provided with a threaded through hole, the long screw rod (2-3) is arranged at the hole (3-2) of the thread-head, then a spring (2-2), two gaskets (2-1), a spring (2-2) and a nut (2-4) are sequentially installed, the cylindrical table end of the two clamping pieces (2-1) is inserted into the square groove (3-3) of the thread head swing rod (3), the thread through hole ends of the two clamping pieces are fixed by a short screw rod (2-6) and the nut (2-5) in a matched mode, the abrasive particle flow leakage groove (17) is provided with four threaded holes and an abrasive particle flow fluid outlet, the four threaded holes (8-7) corresponding to the horizontal lower surface of the clamp body (8) are fixed by screws in a matched mode, one end of the bent pipe (15) is installed at the abrasive particle flow fluid outlet of the abrasive particle flow leakage groove (17), the other end of the bent pipe (15) is provided with a flow control valve (16), and the flow control valve (16) is composed of a valve body (, A switch handle (16-3) which is the installation process of the part of the clamp abrasive particles flowing into the outlet device.
When the clamp is operated, firstly, the clamp part of the thin-wall cylindrical pipe is operated, firstly, a thin-wall cylindrical pipe workpiece is vertically placed, then the handle is rotated, the cylindrical table screw rod (21) is fed forwards, the double semicircular iron (14) is pushed to move forwards along the two T-shaped grooves (8-4), the two variable caliber springs (10) are compressed, the double semicircular iron (14) and the V-shaped iron (9) are matched to clamp the thin-wall cylindrical pipe workpiece, and then the handle is loosened.
Next, operating the part of the abrasive flow inlet and outlet device, loosening the screw (2-5) and the nut (2-6) of the variable-caliber clamping device (2), clamping the abrasive flow inlet pipe (1), then the screw (2-5) and the nut (2-6) are screwed down, each joint of the four-rotating-shaft mechanism is rotated, the proper abrasive flow inlet pipe station is adjusted, when the relative position of the tooth-shaped sleeve (6) and the tooth head sleeve swing rod (5) is adjusted, the tooth head sleeve swing rod (5) is pulled backwards when the rotation direction is needed, the spring is compressed, the tooth head sleeve swing rod (5) rotates by a proper angle, the hand is loosened, the spring is reset, the cylindrical tooth table (5-1) of the tooth head sleeve swing rod (5) is meshed with the outer tooth table (6-2) of the tooth-shaped sleeve (6) to achieve the purpose of rotation direction, and adjusting the flow control valve according to actual production requirements, and finally opening the abrasive flow fluid inlet to perform abrasive flow polishing treatment on the thin-wall cylindrical pipe workpiece.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A thin-wall cylindrical pipe abrasive flow machining clamp is characterized by comprising a thin-wall cylindrical pipe clamp and an abrasive flow inlet and outlet device, wherein the thin-wall cylindrical pipe clamp comprises a clamp body, an abrasive flow leakage plate, a clamp body bolt, a rubber pad matched with V-shaped iron, a rubber pad matched with double semi-circular iron, two stepped circular shafts, two variable-caliber springs, two clamp gaskets, two bolts and matched nuts, a handle frame and a cylindrical table screw rod and matched handle, the thin-wall cylindrical pipe clamp flexibly clamps a thin-wall cylindrical pipe, the two irons and the rubber pad are matched to buffer and increase vibration isolation and friction force generated during clamping of the thin-wall cylindrical pipe, two-point and two-surface positioning is performed during clamping of the thin-wall cylindrical pipe, so that the positioning area is increased, and the positioning is more reliable, the variable-caliber spring is matched with a stepped circular shaft to realize the fast loading and unloading of the thin-wall circular pipe, the abrasive flow inlet and outlet device consists of an abrasive flow inlet consisting of a four-rotating-shaft mechanism and a variable-caliber clamping device, and an abrasive flow outlet consisting of an abrasive flow leaking trough, a bent pipe and a flow control valve, the four-rotating-shaft mechanism consists of a connecting rod frame, a tooth-shaped sleeve matched with the tooth-shaped sleeve, a spring and a bolt, a tooth head sleeve oscillating bar, a connecting shaft sleeve nut and a threaded head oscillating bar, the variable-caliber clamping device consists of two clamping pieces, a long screw rod matched with the long screw rod, two springs and nuts and a short screw rod matched with the short screw rod, the abrasive flow inlet device realizes the clamping of the abrasive flow inlet pipe and the adjustment of the processing position and angle of the thin-wall cylindrical pipe, the flow control valve consists of a valve body, a valve core oscillating plate and a switch handle, the thin-wall cylindrical pipe abrasive flow processing clamp is matched with a special workbench for use, so that the mounting precision is ensured, and the operation stability of the device is improved.
2. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the clamp is characterized in that the clamp body is installed on a special workbench through a bolt, a threaded hole and a through hole are formed in the clamp body and used for installing a positioning device and a clamping device, two T-shaped grooves and abrasive particle flow leakage plate installation grooves are formed in the horizontal upper surface of the clamp body, the two T-shaped grooves are used for guiding and running stability of the double-semicircular iron during clamping and returning, and the abrasive particle flow leakage plate installation grooves are used for accurately installing the abrasive particle flow leakage plate and do not generate an interference effect on clamping and positioning of the thin-wall cylindrical pipe and running of the double-semicircular iron.
3. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the positioning mode of the thin-wall cylindrical pipe workpiece is two-iron positioning mode, the two pieces of iron are a V-shaped iron and a double semi-circular iron, and a rubber gasket is matched with the two pieces of iron, the double semi-circular iron realizes surface positioning contact of the thin-wall cylindrical pipe workpiece, so that the workpiece is completely positioned, a cylindrical rubber boss is arranged on the rubber gasket, flexible clamping of the thin-wall cylindrical pipe workpiece is realized, vibration generated during clamping and abrasive flow polishing is reduced, the friction force of the clamping is increased, and stability of the clamping and damage to the workpiece are realized.
4. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the clamping and pushing device for the thin-wall cylindrical pipe clamp comprises two stepped circular shafts, two variable-caliber springs, two clamp gaskets, a handle frame and a cylindrical table screw matched with the two stepped circular shafts, wherein one end of each of the two stepped shafts is arranged on the clamp body, the other parts of each of the two stepped shafts are sequentially provided with a V-shaped iron, a rubber gasket matched with the V-shaped iron, a variable-caliber spring, a double semicircular iron and a rubber gasket matched with the double semicircular iron, the large-caliber part of the variable-caliber spring faces towards the V-shaped iron, so that the occupied area of the spring is reduced when the clamp is clamped, and the thin-wall cylindrical pipe workpiece with a smaller caliber is clamped, one end of each of the double clamp gaskets and one end of each of the two stepped circular shafts are used for fixing the back parts of the double semicircular irons through bolts and nuts, the other ends of the double clamp gaskets are matched with the cylindrical table screw, the cylindrical table screw, when the workpiece is clamped, the handle is shaken, the cylindrical table screw rod penetrates through the handle frame and the double gaskets to feed forwards, the double semicircular iron is pushed to move and compress the variable-diameter springs, the workpiece is matched with the V-shaped iron to clamp the workpiece, the clamping reliability is guaranteed due to the self-locking performance of the cylindrical table screw rod, the handle is shaken in the opposite direction during the disassembly, the cylindrical table screw rod moves backwards, the extension assisting effect of the two variable-diameter springs is achieved, and the workpiece is quickly disassembled.
5. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the four-rotating-shaft mechanism comprises a connecting rod frame, a tooth-shaped sleeve, a spring and a bolt matched with the tooth-shaped sleeve, a tooth head sleeve swing rod, a connecting shaft sleeve and a thread head swing rod, wherein an outer tooth-shaped table is arranged on the connecting rod frame, the tooth-shaped sleeve comprises a shaft sleeve and a shaft, the shaft sleeve is provided with an inner tooth-shaped table, the shaft end is provided with the outer tooth-shaped table close to the shaft sleeve, the other end is provided with a bolt hole, the inner tooth-shaped table in the tooth-shaped sleeve is meshed with the outer tooth-shaped table of the connecting rod frame and rotates around the outer tooth-shaped table, the tooth head sleeve swing rod is arranged at the shaft end of the tooth-shaped sleeve and is meshed with the outer tooth-shaped table of the tooth-shaped sleeve and rotates around the outer tooth-shaped table, the spring and the bolt are arranged at the end of the tooth head sleeve, the spring and the bolt, one end of the threaded head swing rod is provided with a threaded column, the other end of the threaded head swing rod is provided with a square groove and a screw through hole, and the end of the threaded column is installed on the connecting shaft sleeve and rotates around the connecting shaft sleeve, so that the function of adjusting the polishing angle of the abrasive flow is realized.
6. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the variable caliber clamping device consists of two clamping gaskets, a long screw rod matched with the clamping gaskets, two springs and nuts, and a short screw rod matched with the nuts, the device is arranged at one end of a threaded head swing rod, the long screw is matched with a nut thereof and is arranged at a screw hole of the threaded head swing rod, a spring, two clamping pieces and a spring are sequentially arranged on a long screw rod, a cylindrical table is arranged at one end of each clamping piece, a through hole is arranged at the other end of each clamping piece, the cylindrical table is inserted into the square groove of the threaded head swing rod to realize the opening and closing of the two clamping gaskets for clamping the abrasive particle flow inlet pipe and the horizontal positioning of the two clamping gaskets, the spring realizes the free opening and closing angle and the fixing function of clamping and dismounting when the two clamping gaskets are clamped tightly, and the through hole ends of the two clamping gaskets are fixed with the short screw and the matching nut, so that the clamping of the abrasive flow inlet pipe is realized.
7. The abrasive particle flow processing clamp for the thin-walled cylindrical pipe as claimed in claim 1, wherein: the abrasive particle flow outlet device consists of an abrasive particle flow leaking trough, a bent pipe and a flow control valve, the abrasive particle flow leaking trough is arranged on the horizontal lower surface of the clamp body, accumulating the abrasive flow fluid leaked from the abrasive flow leakage plate, arranging a cylindrical external thread overflow port at the lower end of the abrasive flow leakage plate, arranging internal threads at two ends of the bent pipe, which is arranged on an overflow port of the cylindrical external thread of the material leaking groove, the flow control valve consists of a valve body, a valve core swinging plate and a switch handle, the two ends of the valve body are provided with cylindrical external threads, the top of the valve body is provided with a through hole, the valve core swinging plate consists of a large cylindrical table and a thin cylindrical column, one end of the thin cylindrical column is provided with the external threads, the cylindrical threaded end of the valve body penetrates through a through hole in the top of the valve body to be matched with the switch handle, when the handle is rotated, the valve core swinging plate rotates, the gap between the valve core swinging plate and the inner cavity of the valve body is adjusted, and the effects of adjusting the flow of the abrasive particle flow outlet and storing small-volume abrasive particle flow fluid are achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010040456.6A CN111098223A (en) | 2020-01-15 | 2020-01-15 | Abrasive flow polishing clamp for thin-wall cylindrical pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010040456.6A CN111098223A (en) | 2020-01-15 | 2020-01-15 | Abrasive flow polishing clamp for thin-wall cylindrical pipe |
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| Publication Number | Publication Date |
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| CN111098223A true CN111098223A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010040456.6A Pending CN111098223A (en) | 2020-01-15 | 2020-01-15 | Abrasive flow polishing clamp for thin-wall cylindrical pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115946057A (en) * | 2023-03-15 | 2023-04-11 | 成都航利航空科技有限责任公司 | Machining tool and machining method for balance weight of aero-engine |
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