CN217433507U

CN217433507U - Automatic centering equipment for piston blank

Info

Publication number: CN217433507U
Application number: CN202221278483.8U
Authority: CN
Inventors: 曹勤新; 陆建良
Original assignee: Jiaxing Haoyuan Precision Machinery Co ltd
Current assignee: Jiaxing Haoyuan Precision Machinery Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-09-16
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a piston blank automatic centering device, which comprises a fixed base, wherein the top end of the fixed base is fixedly provided with a fixed magnet, the top end of the fixed magnet is magnetically connected with an adsorption magnetic strip, the top end of the adsorption magnetic strip is fixedly provided with a centering table, and the insides of three translation grooves are rotatably connected with translation threaded columns, the piston blank automatic centering device comprises a centering piece and a centering mechanism, a piston head is placed on the centering table by a worker, three clamping plates are driven by the fixed threaded columns to perform centering fixation on the piston head from the side surfaces thereof, two silica gel clamping plates are clamped and fixed by a movable rod passing through a centering frame, the piston head and the piston rod are centered and fixed, the piston rod slippage of the piston rod in the perforation process is avoided, the welding speed of the piston blank is reduced, or the vibration phenomenon of the piercing process is aggravated due to the uneven wall thickness of the piston tube in the welding process, the qualification rate of the piston blank production is improved.

Description

Automatic centering equipment for piston blank

Technical Field

The utility model relates to a piston technical field specifically is a piston blank automatic centering equipment.

Background

The piston mainly acts on bearing combustion pressure in a cylinder and transmits the force to a crankshaft through a piston pin and a connecting rod, the basic structure of the piston can be divided into a top part, a head part and a skirt part, the piston and a cylinder cover and the cylinder wall jointly form a combustion chamber, the piston is a main part for pushing the cylinder to do telescopic motion, when the piston is manufactured, people need to drill, weld, saw and the like on a piston blank, a worker drills holes in the piston head, and then the piston rod and the piston head which is punched and rolled are welded with each other, inaccurate centering of the piston rod easily occurs in the operation, and the piston head deviates from a rolling center to cause uneven wall thickness of a piston pipe to aggravate vibration in the punching and rolling process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston blank automatic centering equipment to solve the staff who proposes among the above-mentioned background art and drill to the piston head, then weld the piston head after piston rod and the drilling each other, such operation appears the piston rod centering inaccurate easily, and the skew rolling center of piston head will cause the uneven problem of aggravating the vibration of piercing the process of piston pipe wall thickness.

In order to achieve the above purpose, the utility model provides a following technical scheme: an automatic centering device for a piston blank comprises a fixed base, wherein a fixed magnet is fixedly mounted at the top end of the fixed base, an adsorption magnetic stripe is magnetically connected at the top end of the fixed magnet, a centering table is fixedly mounted at the top end of the adsorption magnetic stripe, three translation grooves are formed in the top end of the centering table, translation threaded columns are rotatably connected inside the three translation grooves, translation blocks in sliding connection with the translation grooves are in threaded connection with the middle parts of the three translation threaded columns, centering pieces are fixedly mounted at the top ends of the three translation blocks, vertical rods are fixedly mounted at four corners at the top end of the centering table, the top ends of the four vertical rods are fixedly connected with four corners at the bottom end of a centering frame respectively, a centering mechanism is fixedly mounted at the top end of the centering frame, and the adsorption magnetic stripe and the fixed magnet attract each other, so that a worker adsorbs the centering table above the fixed base through the adsorption magnetic stripe, the staff places the piston head on centering table, and the screw thread on translation screw thread post surface matches each other with the screw thread of translation piece inner wall, and it is spacing that the translation piece receives the translation groove of matcing each other with it shape size, so the translation piece takes place to slide along translation screw thread post, and the centering piece that the translation piece drive was installed on it carries out synchronous motion, and three centering piece presss from both sides tightly fixedly from the side of piston head respectively.

Preferably, it is three the centering piece all includes centering rack, splint, two buffer spring and fixed thread post, the middle part threaded connection of centering rack has the fixed thread post, the one end of fixed thread post is rotated and is connected with splint, the equal fixed mounting in both ends between splint and the centering rack has buffer spring, and the staff rotates the fixed thread post, and the screw thread on fixed thread post surface matches each other with the centering rack inner wall, so the staff drives splint through rotating the fixed thread post and takes place to slide for the centering rack, and splint pull buffer spring from one side, and buffer spring has elasticity, and buffer spring takes place elastic deformation and cushions pulling power.

Preferably, the bottom ends of the three centering frames are respectively fixedly connected with the three translation blocks, and the centering piece is fixed on the translation blocks through the centering frames.

Preferably, centering mechanism includes displacement frame, elastic block, high platform, two angle seats and two silica gel splint, the inside sliding connection of displacement frame has the elastic block, the top fixed mounting of elastic block has high platform, the equal fixed mounting in both ends of high platform one side has angle seat, two the inside of angle seat all rotates and is connected with silica gel splint, and the staff adjusts the clamping position of two silica gel splint to the piston rod along displacement frame slip elastic block.

Preferably, the bottom and the centering frame fixed connection of displacement frame, the expansion mouth has been seted up at the middle part of high platform, fixed mounting has the high screw thread post that runs through the expansion mouth on the centering frame, the junction threaded connection of high screw thread post and high platform has the nut, fixed mounting has rigid spring between high platform and the high screw thread post, and the staff twists the nut, and the inner wall of nut matches each other with the screw thread on high screw thread post surface, and high screw thread post is fixed motionless, so the nut descends along high screw thread post rotation, and the nut promotes downwards from the top of high platform, and high platform extrudees rigid spring and elastic block from one side, and the elastic block adopts rubber materials to make, and elastic block and rigid spring all have elasticity, and rigid spring takes place elastic deformation and cushions the extrusion force.

Preferably, two fixed mounting has a connecting spring between the silica gel splint, and the piston rod extrudes the silica gel splint from both sides, and the connecting spring is dragged from both sides to the silica gel splint, and connecting spring has elasticity, and connecting spring takes place elastic deformation and cushions pulling the power.

Preferably, three the one end of translation screw thread post all passes centering table fixed mounting and has the handle, and the staff rotates the handle, and the handle drives translation screw thread post and rotates.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up centering piece and centering mechanism, the staff places the piston head at centering bench, three splint carry out the centering fixedly from the side of piston head under the drive of fixed thread post to it, two silica gel splint press from both sides from the movable rod that passes centering frame and press from both sides tightly fixedly, piston head and piston rod are all fixed by the centering, avoid the piston rod of piston rod at the perforation in-process to slide, make the welding speed of piston blank reduce, perhaps in the welding process piston pipe wall thickness is uneven and aggravate the emergence of the vibration phenomenon of piercing and rolling process, improve the qualification rate of piston blank production.

Drawings

Fig. 1 is a side view of the present invention;

FIG. 2 is a schematic view of the interior of the centering table of the present invention;

fig. 3 is a side view of the centering mechanism of the present invention;

fig. 4 is a top view of the height table of the present invention.

In the figure: 1. a fixed base; 2. fixing a magnet; 3. a centering table; 4. a centering member; 41. a centering frame; 42. a splint; 43. a buffer spring; 44. fixing the threaded column; 5. erecting a rod; 6. a centering frame; 7. a centering mechanism; 71. a silica gel splint; 72. an angle seat; 73. a movable opening; 74. a height threaded post; 75. a nut; 76. a rigid spring; 77. a displacement frame; 78. an elastic block; 79. a height stage; 8. a handle; 9. adsorbing the magnetic strip; 10. a translation groove; 11. translating the threaded column; 12. a translation block; 13. a spring is connected.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the utility model provides a piston blank automatic centering device, which comprises a fixed base 1, a fixed magnet 2 is fixedly arranged on the top end of the fixed base 1, an adsorption magnetic stripe 9 is magnetically connected on the top end of the fixed magnet 2, a centering table 3 is fixedly arranged on the top end of the adsorption magnetic stripe 9, three translation grooves 10 are arranged on the top end of the centering table 3, translation threaded columns 11 are rotatably connected in the three translation grooves 10, translation blocks 12 slidably connected with the translation grooves 10 are in threaded connection with the middle parts of the three translation threaded columns 11, centering pieces 4 are fixedly arranged on the top ends of the three translation blocks 12, vertical rods 5 are fixedly arranged on four corners of the top end of the centering table 3, the top ends of the four vertical rods 5 are fixedly connected with four corners of the bottom end of a centering frame 6 respectively, a centering mechanism 7 is fixedly arranged on the top end of the centering frame 6, the adsorption magnetic stripe 9 and the fixed magnet 2 attract each other, so the staff adsorbs centering table 3 in unable adjustment base 1 top through adsorbing magnetic stripe 9, the staff places the piston head on centering table 3, the screw thread on 11 surfaces of translation screw thread post matches each other with the screw thread of translation piece 12 inner wall, translation piece 12 receives with it the translation groove 10 that the shape size matches each other spacing, so translation piece 12 slides along the emergence of translation screw thread post 11, translation piece 12 drives the centering piece 4 of installing above that and carries out synchronous motion, three centering piece 4 presss from both sides tightly fixedly from the side of piston head respectively.

Three centring member 4 all includes centring bracket 41, splint 42, two buffer spring 43 and fixed thread post 44, the middle part threaded connection of centring bracket 41 has fixed thread post 44, the one end of fixed thread post 44 is rotated and is connected with splint 42, the equal fixed mounting in both ends between splint 42 and the centring bracket 41 has buffer spring 43, the staff rotates fixed thread post 44, the screw thread on fixed thread post 44 surface matches each other with the 41 inner wall of centring bracket, so the staff drives splint 42 through rotating fixed thread post 44 and takes place to slide for centring bracket 41, buffer spring 43 is dragged from one side to splint 42, buffer spring 43 has elasticity, buffer spring 43 takes place elastic deformation and buffers the power of dragging.

The bottom ends of the three centering racks 41 are respectively fixedly connected with the three translation blocks 12, and the centering piece 4 is fixed on the translation blocks 12 through the centering racks 41.

Centering mechanism 7 includes displacement frame 77, elastic block 78, high platform 79, two angle seats 72 and two silica gel splint 71, the inside sliding connection of displacement frame 77 has elastic block 78, the top fixed mounting of elastic block 78 has high platform 79, the equal fixed mounting in both ends of high platform 79 one side has angle seat 72, the inside of two angle seats 72 all rotates and is connected with silica gel splint 71, the staff is along displacement frame 77 slip elastic block 78, adjust the clamping position of two silica gel splint 71 to the piston rod.

The bottom end of displacement frame 77 and centering frame 6 fixed connection, activity mouth 73 has been seted up at the middle part of height platform 79, fixed mounting has the high screw thread post 74 that runs through activity mouth 73 on the centering frame 6, high screw thread post 74 and the junction threaded connection of height platform 79 have nut 75, fixed mounting has rigid spring 76 between height platform 79 and the high screw thread post 74, the staff twists nut 75, the inner wall of nut 75 matches each other with the screw thread on height screw thread post 74 surface, high screw thread post 74 is fixed, so nut 75 rotates along high screw thread post 74 and goes up and down, nut 75 pushes down from the top of height platform 79, height platform 79 extrudes rigid spring 76 and elastic block 78 from one side, elastic block 78 adopts rubber materials to make, elastic block 78 and rigid spring 76 all have elasticity, rigid spring 76 takes place elastic deformation and cushions the extrusion force.

Connecting spring 13 is fixedly installed between two silica gel clamping plates 71, the piston rod extrudes the silica gel clamping plates 71 from two sides, the silica gel clamping plates 71 pull the connecting spring 13 from two sides, the connecting spring 13 has elasticity, and the connecting spring 13 generates elastic deformation to buffer the pulling force.

3 fixed mounting that have handle 8 of centering table are all passed to the one end of three translation screw thread post 11, and the staff rotates handle 8, and handle 8 drives translation screw thread post 11 and rotates.

When the embodiment of the application is used: the magnetic attraction between the adsorption magnetic strip 9 and the fixed magnet 2 is realized, so that a worker adsorbs the centering table 3 above the fixed base 1 through the adsorption magnetic strip 9, the worker places a piston head on the centering table 3, the worker rotates the handle 8, the handle 8 drives the translation threaded column 11 to rotate, threads on the surface of the translation threaded column 11 are matched with threads on the inner wall of the translation block 12, the translation block 12 is limited by the translation groove 10 matched with the translation block in shape and size, so that the translation block 12 slides along the translation threaded column 11, the translation block 12 drives the centering piece 4 mounted on the translation block to synchronously move, the worker rotates the fixed threaded column 44, threads on the surface of the fixed threaded column 44 are matched with the inner wall of the centering frame 41, so that the worker drives the clamping plate 42 to slide relative to the centering frame 41 through rotating the fixed threaded column 44, the clamping plate 42 pulls the buffer spring 43 from one side, the buffer spring 43 has elasticity, the buffer spring 43 elastically deforms to buffer the pulling force, the three centering members 4 are clamped and fixed from the side face of the piston head respectively, a worker penetrates the piston rod through the centering frame 6, the worker slides the elastic block 78 along the displacement frame 77 to adjust the clamping position of the piston rod by the two silica gel clamping plates 71, the worker screws the nut 75, the inner wall of the nut 75 is matched with the thread on the surface of the height threaded column 74, the height threaded column 74 is fixed, so the nut 75 rotates and ascends along the height threaded column 74, the nut 75 is pushed downwards from the top end of the height platform 79, the height platform 79 extrudes the rigid spring 76 and the elastic block 78 from one side, the elastic block 78 is made of rubber materials, the elastic block 78 and the rigid spring 76 both have elasticity, the rigid spring 76 elastically deforms to buffer the extrusion force, the two silica gel clamping plates 71 center and fix the piston rod, the piston head and the piston rod are fixed in a centering mode, so that one-time perforation welding is completed, and after one pair of piston head and the piston rod are fixed, one piston blank is assembled through the centering perforation welding.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a piston blank automatic centering equipment, includes unable adjustment base (1), its characterized in that: a fixed magnet (2) is fixedly arranged at the top end of the fixed base (1), the top end of the fixed magnet (2) is magnetically connected with an adsorption magnetic strip (9), the top end of the adsorption magnetic stripe (9) is fixedly provided with a centering table (3), the top end of the centering table (3) is provided with three translation grooves (10), the insides of the three translation grooves (10) are rotatably connected with translation threaded columns (11), the middle parts of the three translation threaded columns (11) are in threaded connection with translation blocks (12) in sliding connection with the translation grooves (10), the top ends of the three translation blocks (12) are fixedly provided with centering pieces (4), upright posts (5) are fixedly arranged on four corners at the top end of the centering table (3), the top ends of the four upright posts (5) are respectively fixedly connected with four corners at the bottom end of the centering frame (6), and a centering mechanism (7) is fixedly mounted at the top end of the centering frame (6).

2. A piston blank self-centering apparatus as claimed in claim 1, wherein: it is three centering piece (4) all include centering frame (41), splint (42), two buffer spring (43) and fixed thread post (44), the middle part threaded connection of centering frame (41) has fixed thread post (44), the one end of fixed thread post (44) is rotated and is connected with splint (42), the equal fixed mounting in both ends between splint (42) and centering frame (41) has buffer spring (43).

3. A piston blank self-centering apparatus as claimed in claim 2, wherein: the bottom ends of the three centering frames (41) are respectively and fixedly connected with the three translation blocks (12).

4. A piston blank self-centering apparatus as claimed in claim 1, wherein: centering mechanism (7) are including displacement frame (77), elastic block (78), high platform (79), two angle seats (72) and two silica gel splint (71), the inside sliding connection of displacement frame (77) has elastic block (78), the top fixed mounting of elastic block (78) has high platform (79), the equal fixed mounting in both ends of high platform (79) one side has angle seat (72), two the inside of angle seat (72) all rotates and is connected with silica gel splint (71).

5. A piston blank self-centring device according to claim 4, characterized in that: the bottom and the centering frame (6) fixed connection of displacement frame (77), activity mouth (73) have been seted up at the middle part of high platform (79), fixed mounting has high screw thread post (74) that runs through activity mouth (73) on centering frame (6), the junction threaded connection of high screw thread post (74) and high platform (79) has nut (75), fixed mounting has rigid spring (76) between high platform (79) and high screw thread post (74).

6. A piston blank self-centring device according to claim 4, characterized in that: and a connecting spring (13) is fixedly arranged between the two silica gel clamping plates (71).

7. A piston blank self-centering apparatus as claimed in claim 1, wherein: one end of each of the three translation threaded columns (11) penetrates through the centering table (3) and is fixedly provided with a handle (8).