CN111618174A

CN111618174A - Punching and bending combined machine for machining balance car operating lever

Info

Publication number: CN111618174A
Application number: CN202010508792.9A
Authority: CN
Inventors: 朱兵
Original assignee: Lu'an Yam Mdt Infotech Ltd
Current assignee: Lu'an Yam Mdt Infotech Ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2020-09-04

Abstract

The invention relates to the technical field of balance car machining, in particular to a punching and bending combined machine for machining a balance car operating lever, which comprises an inverted L-shaped punching table and a bending table in a box body structure, wherein a power mechanism is installed at the rear end of the punching table, a punching mechanism is installed in front of the power mechanism, a square box-shaped material collecting box is also installed between the punching table and the bending table, a square storage cavity is arranged at one corner in the material collecting box, a grinding material box is placed on one side of the short edge of the storage cavity, and a bending mechanism is installed on the top surface of the bending table. The punching mechanism on the punching table provided by the invention punches the operating rod under the power provided by the power mechanism, the punched operating rod is intensively placed in the material collecting box for storage, and is simultaneously ground in the grinding material box, so that the subsequent riveting is ensured to be smooth, and finally the operating rod is bent and formed through the bending mechanism.

Description

Punching and bending combined machine for machining balance car operating lever

Technical Field

The invention relates to the technical field of balance car machining, in particular to a punching and bending combined machine for machining a balance car operating lever.

Background

The operation principle of the electric balance car is mainly established on a basic principle called dynamic stability. The gyroscope and the acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, and the servo control system is used for accurately driving the motor to perform corresponding adjustment so as to keep the balance of the system. It stands through people and adjusts the focus and controls, in order to make people's quick adaptation, the control rod is all installed to general balance car, so that people's both hands are supported and are controlled, the both ends of its control rod all rivet and balance car's shell and handle riveting, in order to make people have sufficient space of standing, the control rod is also generally bent into circular-arcly, its control rod is adding man-hour, it punches a hole, grind hole limit burr and the process of bending and be separately going on, lead to the control rod material to make a round trip to move, its probability that increases the control rod wearing and tearing fish tail, show easily when subsequently spraying paint, lead to the outward appearance flaw, the progress of control rod shipment has also been prolonged from whole processing.

Disclosure of Invention

The invention aims to provide a punching and bending combined machine for machining a balance car operating lever, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a punching and bending combination machine for machining a balance car control lever, which comprises an inverted L-shaped punching table and a bending table in a box body structure, wherein supporting plates are vertically and downwards welded on two sides of the horizontal top surface of the punching table, supporting columns are vertically and downwards welded on the corners of the bottom surface of the bending table, a power mechanism is installed at the rear end of the punching table, a punching mechanism is installed in front of the power mechanism, the power mechanism comprises a servo motor installed on the inner side of the vertical surface of the punching table, one end of an output shaft of the servo motor is coaxially connected with a driving wheel, at least three annular grooves are formed in the outer circular surface of the driving wheel at equal intervals along the axial direction of the driving wheel, a belt is sleeved in each annular groove, a driving wheel is sleeved on the inner side of the top of the belt, a driving, the front end of the transmission shaft is tightly provided with an eccentric wheel, the punching mechanism comprises a punching plate arranged under the eccentric wheel, the top surface of the stamping plate is in a convex arc shape, a connecting column is vertically welded at the center of the top surface, counter bores are symmetrically arranged at two ends of the top surface of the stamping plate, a thimble is inserted in the counter bore, a bolt is connected in the counter bore by screw thread, a punching column is arranged right above the center of the punching plate, a transverse column which is connected with the eccentric wheel in a sliding way is welded at the top end of the punching column, a linkage rod which is connected with and fixed with the connecting column is vertically welded at the center of the bottom end of the punching column, a spring is sleeved on the outer side of the linkage rod, a guide sleeve in a fixed state is sleeved on the outer side of the stamping column, a rod groove is formed in the horizontal top surface of the punching table and located right below the punching plate, and waist-shaped holes inserted with the ejector pins are formed in two ends of the bottom surface of the rod groove;

a square box-shaped material collecting box is further installed between the punching table and the bending table, a square storage cavity is arranged at one corner in the material collecting box, the storage cavity is close to one side of the punching table, a grinding material box is placed on one side of the short edge of the storage cavity, sand blocks are symmetrically fixed in the grinding material box, edge clamping blocks clamped with the material collecting box are welded on the outer sides of the long edge and the short edge adjacent to the top end of the grinding material box, a material guide plate is obliquely placed in the material collecting box and located on one side of the long edge of the storage cavity, and the top end of the material guide plate leans against the outer side of the storage cavity;

the bending mechanism is arranged on the top surface of the bending table and comprises a three-phase asynchronous motor arranged on the inner top surface of the bending table, an output shaft of the three-phase asynchronous motor penetrates above the bending table and is sleeved with a fixed bending wheel, a bending seat synchronously rotating with the fixed bending wheel is arranged on one side of the fixed bending wheel, a positioning rod is vertically arranged on the inner side of the bottom end of the bending seat, a lantern ring sleeved with the output shaft of the three-phase asynchronous motor is welded at the front end of the positioning rod, a movable pressing rod capable of vertically overturning is hinged on the inner side of the top end of the bending seat, the positioning rod is arranged below the fixed bending wheel and is arranged above the fixed bending wheel, a sliding groove is formed in the middle of the top surfaces of the movable pressing rod and the positioning rod, a limiting cap is connected in the sliding groove of the positioning rod in a sliding manner, and the two sides of the limiting, the utility model discloses a spacing cap, including spacing cap, movable depression bar, fixed curved wheel roll connection, the top center of spacing cap is seted up the shrinkage pool of in-band screw thread, movable depression bar with place between the locating lever with fixed curved wheel roll connection's dynamic bending wheel, the inside of dynamic bending wheel is provided with rotates the handle, just it passes to rotate the handle the centre bore of dynamic bending wheel with the shrinkage pool threaded connection of spacing cap, fixed curved wheel with the joint has the control rod between the dynamic bending wheel.

As a further improvement of the technical scheme, a sleeve column is arranged at the center of the front end of the transmission shaft, limit strips in a square strip shape are symmetrically arranged on two sides of the sleeve column, an eccentric hole spliced with the sleeve column and the limit strips is formed in the end face of the eccentric wheel and deviates from the center of the eccentric wheel, a support sleeve is sleeved on the outer side of the middle of the transmission shaft, a support rod is vertically welded to the bottom face of the support sleeve, and the support rod is fixedly connected with the punching table through a bolt.

As a further improvement of the technical scheme, the rear end of the punching table is fixedly connected with a protective shell through bolts, the protective shell is covered outside the driving wheel and the driving wheel, bearings are welded on the upper portion and the lower portion of the inner side surface of the protective shell, the bearings on the upper portion and the lower portion are respectively sleeved with the transmission shaft and an output shaft of the servo motor, and a connecting rod is further welded between the two bearings.

As a further improvement of this technical scheme, the bottom center of gangbar seted up with the hole that the spliced pole was pegged graft, the bottom side and the perpendicular to of gangbar the center pin orientation of eccentric wheel has run through the pin, the bottom surface of uide bushing seal and the center seted up with the through-hole that the gangbar was pegged graft, the rear side welding of uide bushing has the suspension pole, the rear end of suspension pole with the bracing piece passes through bolt fixed connection.

As a further improvement of the technical scheme, the rod groove is matched with the control rod in a clamped mode, the avoiding groove is formed in the middle of the rod groove, the length of the rod groove is larger than that of the control rod, the width of the rod groove is equal to that of the control rod, positioning blocks of different sizes are clamped at two ends of the inner portion of the rod groove, the bottom face of the horizontal section of the punching table is located under the waist-shaped hole, and the inserting strips are symmetrically welded to be L-shaped, and each pair of inserting strips are all spliced to be provided with the waste material boxes.

As a further improvement of this technical scheme, the horizontal welding in top surface the place ahead of the platform of punching a hole has the elasticity strip, the elasticity strip is the C font and the lower surface is the plane, the both ends of elasticity strip just are located the bench of punching a hole all welds there is the fixed block, the fixed block orientation one side of elasticity strip articulates there is the protruding material strip of pressing that describes of circular arc, the hinged end of pressing the material strip is equipped with the connecting block that is the cylinder structure, the concora crush face has been seted up to the bottom surface of connecting block, the concora crush face with the top surface laminating of elasticity strip, the top surface symmetrical welding of the platform of punching a hole have with the fixture block of pressure material strip front end joint.

As a further improvement of this technical scheme, the top bilateral symmetry welding of case that gathers materials has the suspension piece that is the type of falling L, the platform of punching a hole with the top one side welding of the platform of bending have with suspension piece joint complex card strip, the bottom surface symmetry welding of abrasive material box has the bar pole, and the bar pole with the cooperation of closely pegging graft of sand piece, two the sand piece all with the control rod is pegged graft, two the interval of sand piece does the twice of control rod wall thickness, a plurality of square troughs have been seted up to the equidistant of top surface of stock guide, the inside of square trough is provided with rotatable roller, the side of stock guide runs through there is the pin and the pin passes the center pin of roller.

As a further improvement of this technical scheme, the top surface of the lantern ring be provided with the planar bearing that three-phase asynchronous machine output shaft cup jointed, three-phase asynchronous machine's output shaft top welding has the square, the front end of activity depression bar seted up with the square hole of square joint, install positive and negative change-over switch on the front end lateral surface of the platform of bending, positive and negative change-over switch with three-phase asynchronous machine has two positive and negative return circuits through wire electric connection.

As a further improvement of the technical scheme, the front end of the top surface of the bending table is provided with an arc-shaped guide groove concentric with the output shaft of the three-phase asynchronous motor, and the bottom surface of the bending seat is welded with a sliding block in sliding connection with the guide groove.

As a further improvement of this technical scheme, the top surface of the platform of bending be provided with control rod one end fixed connection's fixed cover, the one end of fixed cover seted up with the slot of control rod grafting, the top threaded connection of fixed cover has the compressing tightly the pole that compresses tightly the control rod, the top surface of the platform of bending is the straight line and has seted up a plurality of jacks, the bottom welding of fixed cover have with the post of inserting that the jack was pegged graft.

Compared with the prior art, the invention has the beneficial effects that:

1. in the punching and bending combined machine for machining the balance car control lever, the control lever is arranged in the lever groove on the punching table through the punching table and the power mechanism and the punching mechanism which are arranged above the punching table, and the power mechanism is started again to drive the punching mechanism to punch the control lever, so that the control lever can be quickly and accurately punched.

2. In the punching and bending combined machine for processing the balance car control lever, the material collecting box is arranged on one side of the punching platform and used for placing the control lever which is punched, the two ends of the control lever are inserted into the sand block in the abrasive material box, the hole flanging is quickly polished, and the follow-up riveting is guaranteed to be smooth.

3. In the punching and bending combined machine for processing the balance car operating rod, the polished operating rod is taken out of the material collecting box through the bending platform arranged on one side of the material collecting box and is placed between the fixed bending wheel and the movable bending wheel of the bending mechanism, and the movable bending wheel and the fixed bending wheel are driven to perform tangential movement through the starting servo motor, so that the operating rod can be conveniently bent.

4. In this processing balance car control rod's combined machine of bending that punches a hole, through the material strip of pressing that sets up on the top surface of punching a hole platform front end, can push down the control rod that the heap was placed, this material strip of pressing can upwards rotate and can the reconversion, and the staff of being convenient for easily takes out the control rod of its below for the staff takes fast, effectively saves the time of punching a hole, improves work efficiency.

Drawings

FIG. 1 is one of the overall structural views of embodiment 1;

FIG. 2 is a second schematic view of the overall structure of the embodiment 1;

FIG. 3 is an overall front view of embodiment 1;

FIG. 4 is a schematic view of an overall assembly structure of the punching table of embodiment 1;

FIG. 5 is an assembled side view of the punching table of example 1;

FIG. 6 is a schematic view of the structure of a punching stage according to embodiment 1;

fig. 7 is a schematic view of the power mechanism assembly structure of embodiment 1;

fig. 8 is an exploded assembly view of the power mechanism of embodiment 1;

FIG. 9 is a schematic view of an assembly structure of a punching mechanism of embodiment 1;

FIG. 10 is an exploded assembly view of the punching mechanism of embodiment 1;

FIG. 11 is a schematic view showing an assembled structure of a punching table and a blank holder in example 1;

fig. 12 is an exploded view of the assembly of the swage strip of example 1;

FIG. 13 is a front view of the punching stage of embodiment 1;

FIG. 14 is a schematic view showing the construction of the waste box of example 1;

FIG. 15 is a schematic view of the mounting structure of the head box of embodiment 1;

FIG. 16 is a schematic view of the structure of a material collecting box according to embodiment 1;

FIG. 17 is a partial sectional view of the abrasive case of example 1

Fig. 18 is a schematic view showing the structure of a material guide plate according to embodiment 1;

FIG. 19 is one of the schematic views of the entire assembly structure of the bending station in embodiment 1;

FIG. 20 is a second schematic view of the overall assembly structure of the bending station in accordance with embodiment 1;

FIG. 21 is an overall plan view of a bending table according to example 1;

FIG. 22 is a schematic view of the structure of a bending station in accordance with embodiment 1;

FIG. 23 is an exploded assembly view of the bending mechanism of embodiment 1;

FIG. 24 is a partial assembly view of the bending mechanism of embodiment 1;

fig. 25 is a schematic view of the structure of the fixing cover of embodiment 1.

The various reference numbers in the figures mean:

100. a punching table; 101. a support plate; 1010. cutting; 1011. a waste material box; 102. a rod groove; 1020. an avoidance groove; 103. a kidney-shaped hole; 104. positioning blocks; 105. an elastic strip; 106. a fixed block; 107. pressing the material strips; 1070. connecting blocks; 1071. flattening the surface; 108. a clamping block; 109. clamping the strip;

110. a power mechanism; 111. a servo motor; 1110. a control switch; 112. a driving wheel; 113. a belt; 114. a driving wheel; 115. a drive shaft; 1150. sleeving a column; 1151. a limiting strip; 1152. an eccentric wheel; 1153. an eccentric hole; 116. a protective shell; 117. a bearing; 118. a connecting rod; 119. a support sleeve; 1190. a support bar;

120. a stamping mechanism; 121. stamping the plate; 1210. connecting columns; 1211. a counter bore; 1212. a thimble; 122. punching the column; 1220. a linkage rod; 123. a spring; 124. a cross post; 125. a guide sleeve; 1250. a suspension rod;

200. a material collecting box; 201. a storage chamber; 202. a suspension block;

210. an abrasive box; 211. a sand block; 212. a clamping edge block;

220. a material guide plate; 221. a square groove; 222. a roller;

300. a bending table; 301. a guide groove; 302. a flat bearing; 303. fixing a sleeve; 3030. a slot; 3031. inserting a column; 3032. a hold down bar; 304. a jack; 305. a storage port;

310. a bending mechanism; 311. a fixed bending wheel; 312. a three-phase asynchronous motor; 3120. a square block; 3121. a forward and reverse rotation switch; 313. a bending seat; 3130. positioning a rod; 3131. a collar; 3132. a slider; 314. a movable pressure lever; 3140. a square hole; 315. a chute; 316. a limiting cap; 317. a moving bending wheel; 318. rotating the handle;

400. a joystick.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central axis", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1 to 14, the present invention provides a punching and bending assembly machine for processing a balance car lever, which includes an inverted L-shaped punching stage 100 and a bending stage 300 having a box structure. The supporting plates 101 are vertically welded downwards on two sides of the horizontal top surface of the punching table 100 and fixedly connected with ground bolts through the supporting plates 101, so that the punching table 100 is stably placed, the lower portion of the front end of each supporting plate 101 is an arc surface, and legs and feet of workers can be conveniently placed below the punching table 100. The equal vertical downward welding in bottom surface corner of platform 300 of bending has the support column, through support column and ground bolt fixed connection, makes platform 300 of bending firmly place.

The rear end of the punching table 100 is provided with a power mechanism 110 for providing power to the punching mechanism 120, and the front of the power mechanism 110 is provided with the punching mechanism 120 for punching the operating lever 400. The power mechanism 110 includes a servo motor 111 installed inside the vertical surface of the punching table 100, an iron rod is welded between the inner sides of the bottom of the supporting plate 101, a control switch 1110 is fixed on one side of the iron rod, which is inclined upward, through a bolt, and the control switch 1110 is electrically connected with the servo motor 111 through a wire. The servo motor 111 has a pulse receiving and sending function, a pulse is sent out by the control switch 1110 and received by the servo motor 111, and the output shaft of the servo motor 111 rotates by a certain angle after receiving one pulse every time and stops, so that the structure connected with the output shaft can realize movement. One end of an output shaft of the servo motor 111 is coaxially connected with a driving wheel 112, at least three annular grooves are formed in the outer circular surface of the driving wheel 112 at equal intervals along the axial direction of the driving wheel, a belt 113 is sleeved inside each annular groove, a driving wheel 114 is sleeved on the inner side of the top of each belt 113, and the belts 113 need to be in a tightened state and can drive the driving wheels 114 to rotate through friction force. A transmission shaft 115 is inserted into the central shaft hole of the transmission wheel 114, the transmission shaft 115 is disposed above the punching table 100, and an eccentric 1152 is tightly mounted at the front end of the transmission shaft 115, that is, the transmission shaft 115 is used to drive the eccentric 1152 to rotate eccentrically. The punching mechanism 120 comprises a punching plate 121 arranged under the eccentric wheel 1152, the top surface of the punching plate 121 is in a convex arc shape, the center of the top surface is vertically welded with a connecting column 1210, the arc shape is similar to an arch shape, the stress deformation resistance of the punching plate 121 can be improved, and the use strength of the punching plate 121 is ensured. Counterbores 1211 are symmetrically formed in two ends of the top surface of the stamping plate 121, ejector pins 1212 are inserted into the counterbores 1211, threads are formed in the counterbores 1211 and are connected with bolts in a threaded mode, the counterbores 1211 are holes with the top aperture larger than the bottom aperture, a limiting structure can be formed, the outer diameter of the top ends of the ejector pins 1212 is equal to the top aperture of the counterbores 1211, and the ejector pins are tightly pressed through screwing the bolts, so that the ejector pins synchronously move along with the stamping plate 121 and cannot slip under stress. The punching column 122 is arranged right above the center of the punching plate 121, a cross column 124 connected with an eccentric wheel 1152 in a sliding mode is welded at the top end of the punching column 122, a linkage rod 1220 connected with a connecting column 1210 and fixed is vertically welded at the center of the bottom end of the punching column 122, the punching column 122 and the punching plate 121 can move synchronously, a spring 123 is sleeved on the outer side of the linkage rod 1220, a guide sleeve 125 in a fixed state is sleeved on the outer side of the punching column 122, the top end of the spring 123 supports against the bottom end of the punching column 122, the bottom end of the spring 123 supports against the bottom surface of the guide sleeve 125, when the punching column 122 presses downwards, the spring 123 can be extruded to store energy, and after the punching column 122 is not pressed, the elastic force of the spring 123 can push the punching column 122 upwards and reset. Due to the eccentric rotation of the eccentric 1152 on the vertical plane, the punching column 122 can be pushed to reciprocate up and down under the elastic force of the spring 123, so as to drive the punching plate 121 and the thimbles 1212 at the two ends thereof to punch the operating rod 400 placed in the rod groove 102. The horizontal top surface of the punching table 100 is provided with a rod groove 102 under the punching plate 121 for quickly placing the operating rod 400, the two ends of the bottom surface of the rod groove 102 are provided with waist-shaped holes 103 inserted with the ejector pins 1212, the waist-shaped holes 103 are arranged to avoid collision and interference with the ejector pins 1212, and waste materials punched by the ejector pins 1212 fall from the waist-shaped holes 103.

In this embodiment, the punching table 100 and the supporting plate 101 are made of at least 2cm steel plate, so that the whole punching table is firm and can bear punching force.

In order to ensure the stable installation and the stable movement of the actuating mechanism 110, the transmission shaft 115 is turned into an integral structure by a lathe, so that the whole mechanism is firm. A sleeve column 1150 is arranged in the center of the front end of the transmission shaft 115, square limiting strips 1151 are symmetrically arranged on two sides of the sleeve column 1150 to form a limiting structure, an eccentric hole 1153 which is connected with the sleeve column 1150 and the limiting strips 1151 in an inserting mode is formed in the end face of the eccentric wheel 1152 and deviates from the center of the eccentric wheel, and the eccentric wheel 1152 is driven to do vertical eccentric rotation movement through rotation of the transmission shaft 115. The middle outer side of the transmission shaft 115 is sleeved with a support sleeve 119, the transmission shaft 115 can rotate in the support sleeve 119, and mechanical lubricating oil can be dropped on the contact surface of the transmission shaft 115 and the support sleeve 119 to reduce the rotation damping of the transmission shaft 115. A support rod 1190 is vertically welded to the bottom surface of the support sleeve 119, and the support rod 1190 is fixedly connected to the punching table 100 through a bolt, so that the support sleeve 119 stably supports the transmission shaft 115 to rotate. The length of the thimble 1212 is greater than the maximum eccentricity of the eccentric 1152, and the maximum distance from the bottom end of the thimble 1212 to the bottom surface of the lever slot 102 is smaller than the maximum eccentricity of the eccentric 1152, so that the thimble 1212 can punch through the operating lever 400 when being pressed downwards, and the pressing plate 121 is prevented from being pressed to the operating lever 400.

In order to avoid injuring the rear workers when the power mechanism 110 is in the operating state, the rear end of the punching table 100 is fixedly connected with a protective shell 116 through a bolt, the protective shell 116 is covered outside the driving wheel 112 and the driving wheel 114, the protective shell 116 can prevent dust and foreign matters from splashing into the punching table, and meanwhile, the workers are prevented from being injured when touching the operating power mechanism 110. Bearings 117 are welded on the upper side and the lower side of the inner side face of the protective shell 116 and welded with the outer ring of the protective shell, the inner rings of the bearings 117 on the upper side and the lower side are respectively sleeved with the transmission shaft 115 and the output shaft of the servo motor 111, the width of the inner ring of the bearing 117 is smaller than that of the outer ring of the bearing, so that the rotation of the inner ring is not blocked, and a connecting rod 118 is welded between the two bearings 117, so that the transmission wheel 114.

In order to stably punch the punching mechanism 120, an inner hole inserted into the connecting column 1210 is formed in the center of the bottom end of the linkage rod 1220, and a pin penetrates through the side face of the bottom of the linkage rod 1220 and the direction perpendicular to the central axis of the eccentric wheel 1152, so that the stable assembly of the punching plate 121 is facilitated. The bottom surface of the guide sleeve 125 is sealed and the center thereof is provided with a through hole which is inserted with the linkage rod 1220, so that the linkage rod 1220 can penetrate out of the guide sleeve 125 to move up and down. The rear side of the guide sleeve 125 is welded with a suspension rod 1250, and the rear end of the suspension rod 1250 is fixedly connected with the support rod 1190 through a bolt, so that the guide sleeve 125 is stably suspended, and the stamping column 122 can stably move up and down in the guide sleeve 125.

In order to ensure that the control rod 400 is placed quickly and accurately, the rod groove 102 is matched with the control rod 400 in a clamping mode, and an avoiding groove 1020 is formed in the middle of the rod groove 102, so that the control rod 400 can be grasped by hands to be taken and placed conveniently. The rod grooves 102 have a length greater than the length of the operating rod 400 and an equal width, which facilitates gripping the operating rod 400 of different lengths. The inside both ends joint of pole groove 102 has the locating piece 104 of equidimension not, and it uses according to the length of control rod 400 supporting, ensures that the control rod 400 homoenergetic of different length can fix and does not rock in pole groove 102, ensures that the position of punching a hole is accurate. The bottom surface of the horizontal section of the punching table 100 is symmetrically welded with L-shaped inserting strips 1010 right below the waist-shaped hole 103, and a waste material box 1011 is inserted below each pair of inserting strips 1010 and used for receiving hole waste materials falling in the waist-shaped hole 103 and facilitating centralized processing. The waist-shaped hole 103 is beneficial to punching holes with different intervals of the operating rod 400, so that the thimble 1212 can penetrate through the waist-shaped hole 103, and interference is avoided.

In order to make the worker quickly take the operating lever 400 which is placed in a pile for punching, an elastic strip 105 is transversely welded in front of the top surface of the punching table 100, the elastic strip 105 is made of thin steel sheets to be C-shaped, the upper surface and the lower surface of the elastic strip are planes, the elastic strip is in a near-empty state on one side of an opening, and the elastic strip can generate elasticity after being pressed. Fixing blocks 106 are welded at two ends of the elastic strip 105 and positioned on the punching table 100, and a pressing strip 107 in an arc convex shape is hinged to one side, facing the elastic strip 105, of the fixing blocks 106, so that the pressing strip 107 can be turned over. The hinged end of the pressing bar 107 is provided with a connecting block 1070 in a cylindrical structure, that is, a hinge structure is formed by penetrating the connecting block 1070 and the fixing block 106 through a pin. Flat pressing surface 1071 has been seted up to the bottom surface of connecting block 1070, and flat pressing surface 1071 is laminated with the top surface of elastic strip 105, because the distance of the center pin of connecting block 1070 apart from flat pressing surface 1071 is less than its radius, upwards rotates and presses material strip 107 after, and flat pressing surface 1071's edge just can be extrudeing elastic strip 105, makes it move down, after removing the turning force that presses material strip 107, elastic strip 105's resilience force can make pressure material strip 107 reset. The top surface symmetrical welding of platform 100 that punches a hole has the fixture block 108 with pressing the front end joint of material strip 107, through putting into between elastic strip 105 and the fixture block 108 a plurality of control rod 400, it avoids the landing to be pressed by material strip 107, only need to hold a control rod 400 and upwards lift material strip 107 through one hand, it can stop lifting to take out until control rod 400 from its front end, press material strip 107 to reset and block in fixture block 108 under the resilience effect of elastic strip 105 this moment, guarantee that a plurality of control rod 400 on the platform 100 of punching a hole are stably placed, the setting of this structure makes the staff can take control rod 400 fast and punch a hole, needn't spend effort on stabilizing a plurality of control rod 400 and stack stable problem simultaneously.

When the operating lever 400 is punched, firstly, a plurality of operating levers 400 are stacked on the front end face of the punching table 100 and pressed by the material pressing strips 107 to avoid slipping, so that a worker can take the operating levers quickly and does not worry about slipping, then the matched positioning blocks 104 are clamped into the two ends of the lever groove 102, namely the lengths of the two matched positioning blocks 104 and the operating levers 400 are equal to the length of the lever groove 102, the power supply of the servo motor 111 is switched on to electrify the operating levers, the worker can take the operating levers 400 out by one hand and put the operating levers into the lever groove 102, and then the worker can press the control switch 1110 by feet, even if the servo motor 111 receives pulses to drive the output shaft to rotate for a certain angle, the driving wheel 112 is driven to rotate for a certain angle, the driving wheel 114 is driven to rotate for one circle and stop rotating by one circle through the belt 113, the driving shaft 115 also rotates for one circle, because the punching plate 121 is integrally connected with the punching column 122, when the farthest surface of the eccentric 1152 from the eccentric hole 1153 contacts the cross column 124, the punching plate 121 moves downwards to punch through the operating rod 400 with the thimble 1212, the hole waste material falls into the waste material box 1011 from the kidney-shaped hole 103 and is collected, after the eccentric 1152 rotates half a turn, the punching column 122 moves upwards to reset under the resilience force of the spring 123 until the eccentric 1152 stops rotating, at this time, the operating rod 400 is taken out, and then the operating rod below the material pressing strip 107 is taken out with the other hand to continue punching according to the operation.

In order to transfer the punched operating rod 400 to the next worker for the bending process, as shown in fig. 15 to 18, a square box-shaped material collecting box 200 is further installed between the punching table 100 and the bending table 300 for storing the punched operating rod 400, and a square storage cavity 201 is arranged at one corner inside the material collecting box 200 for storing hardware tools such as wrenches and hammers and is convenient to take and use at any time so as to replace parts. Storing chamber 201 is close to platform 100 one side of punching a hole, and abrasive material box 210 has been placed to the minor face one side of storing chamber 201, and the inside symmetry of abrasive material box 210 is fixed with sand block 211, uses the square piece that makes with a emery wheel material promptly, reciprocates after emboliaing sand block 211 through the control lever 400 one end after will punching a hole, gets rid of the turn-ups of hole limit and grinds the paper-back. The welding of the adjacent length limit outside in abrasive box 210 top has the card limit piece 212 with the case 200 joint that gathers materials, is convenient for take abrasive box 210, pours the material sediment. The guide plate 220 is obliquely placed on one side of the long edge of the storage cavity 201 inside the material collecting box 200, the top end of the guide plate 220 leans against the outer side of the storage cavity 201, and after the operating rod 400 is placed in, the guide plate can slide to one side of the bending table 300, so that workers in the bending process can take the guide plate conveniently, and the taking time is saved.

In order to facilitate the quick polishing of the operating rod 400 and the concentrated accumulation of the operating rod 400, the suspension blocks 202 in the inverted L shape are symmetrically welded to the two sides of the top end of the material collecting box 200, and the clamping strips 109 in clamping fit with the suspension blocks 202 are welded to one side of the tops of the punching table 100 and the bending table 300, so that the material collecting box 200 is quickly installed and is convenient to take out and move. The bottom surface symmetrical welding of abrasive material box 210 has the bar pole, and the cooperation of closely pegging graft of bar pole and sand block 211, and the shrinkage pool with the bar pole is with size, the dismouting of the sand block 211 of being convenient for is seted up at the bottom center of sand block 211. Two sand lumps 211 all peg graft with control rod 400, and the interval of two sand lumps 211 is the twice of control rod 400 wall thickness, can make two control rods 400 embolia on sand lumps 211 side by side together and polish. The top surface of the material guide plate 220 is provided with a plurality of square grooves 221 at equal intervals, the rotatable roller 222 is arranged in each square groove 221, and the side end of the material guide plate 220 is penetrated with a pin which penetrates through the central shaft of the roller 222, so that the roller 222 can rotate freely, and the control rod 400 placed conveniently slides and stacks towards the lower part of the control rod.

Above-mentioned control rod 400 when polishing and placing, promptly after punching a hole, the staff embolias the back control rod 400 that punches a hole in both hands side by side and reciprocates and polish behind two sand lumps 211, and the turn-ups or the burr of hole limit are removed, alright put into the case 200 that gathers materials with two control rods 400 transversely, and it can be along stock guide 220 and along with the roll of roller 222 and slide to be close to bending platform 300 one side and pile up in the case 200 that gathers materials, the staff of the next process of bending of being convenient for takes.

As shown in fig. 19 to 25, for bending and molding the punched and polished operating rod 400, the bending mechanism 310 is installed on the top surface of the bending table 300, and the bending mechanism 310 includes a three-phase asynchronous motor 312 installed on the top surface inside the bending table 300, and the three-phase asynchronous motor can be connected in a forward and reverse direction so as to drive the bending mechanism 310 to perform reciprocating bending. An output shaft of the three-phase asynchronous motor 312 penetrates above the bending table 300 and is sleeved with a fixed bending wheel 311, and one side of the fixed bending wheel 311 is provided with a bending seat 313 which rotates synchronously with the fixed bending wheel 311. A positioning rod 3130 is vertically arranged on the inner side of the bottom end of the bending seat 313, and a lantern ring 3131 sleeved with an output shaft of the three-phase asynchronous motor 312 is welded at the front end of the positioning rod 3130, so that the bending seat 313 and the fixed bending wheel 311 rotate concentrically. The inner side of the top end of the bending seat 313 is hinged with a movable pressure lever 314 which can be vertically turned, and the structure is convenient for taking out the fixed bending wheel 311 and the movable bending wheel 317 for carrying out replacement of different specifications so as to bend the operating lever 400 with different bending degrees. The positioning rod 3130 is arranged below the fixed bending wheel 311, and the movable pressing rod 314 is arranged above the fixed bending wheel 311. The middle parts of the top surfaces of the movable compression bar 314 and the positioning bar 3130 are provided with a sliding groove 315, and the sliding groove 315 facilitates the passing movement of the rotating handle 318, so that the positions of the fixed bending wheel 311 and the movable bending wheel 317 with different dimensions can be adjusted. The sliding groove 315 of the positioning rod 3130 is slidably connected with a limiting cap 316, and the outer diameter of the bottom end of the limiting cap 316 is larger than the inner width of the sliding groove 315, so that the limiting cap 316 is prevented from slipping. The two sides of the limiting cap 316 are vertical surfaces and are attached to the inner side surface of the sliding groove 315, so that the limiting cap 316 is prevented from rotating in the sliding groove 315. A concave hole with internal threads is formed in the center of the top end of the limiting cap 316, a movable bending wheel 317 in rolling connection with the fixed bending wheel 311 is placed between the movable pressing rod 314 and the positioning rod 3130, a rotating handle 318 is arranged inside the movable bending wheel 317, and the rotating handle 318 penetrates through the center hole of the movable bending wheel 317 to be in threaded connection with the concave hole of the limiting cap 316, so that the movable bending wheel 317 and the fixed bending wheel 311 are tightly pressed through screwing the rotating handle 318, and the movable bending wheel 317 and the fixed bending wheel 311 are guaranteed to be attached and roll. The operating rod 400 is clamped between the fixed bending wheel 311 and the movable bending wheel 317, the operating rod 400 is clamped by the annular grooves of the arc surfaces of the fixed bending wheel 311 and the movable bending wheel 317, and the operating rod 400 is bent when the fixed bending wheel 311 and the bending base 313 are driven to synchronously rotate by the three-phase asynchronous motor 312.

In this embodiment, the bending table 300 is welded by a steel plate of at least 1cm to form an empty box structure, so that the whole bending table is firm and can bear the whole gravity of the bending mechanism 310, and one side of the bending table 300 is provided with an object placing opening 305, so that the inside of the bending table 300 has a storage function, and the fixed bending wheel 311 and the movable bending wheel 317 of different specifications can be conveniently placed in the storage opening, so that the operating levers 400 of different specifications can be conveniently bent. Other related tools can be put in, so that the multifunctional combined tool is convenient for workers to use.

In order to enable the bending mechanism 310 to reciprocally bend the operating rod 400, the top surface of the collar 3131 is provided with a flat bearing 302 sleeved with an output shaft of the three-phase asynchronous motor 312, so that the fixed bending wheel 311 is attached to the flat bearing 302 to freely rotate. The square 3120 is welded at the top end of the output shaft of the three-phase asynchronous motor 312, the square 3140 clamped with the square 3120 is opened at the front end of the movable pressure lever 314, the movable pressure lever 314 is driven to rotate synchronously by the rotation of the output shaft, that is, the bending base 313 is driven to rotate integrally and synchronously. A forward and reverse rotation switch 3121 is installed on the outer side surface of the front end of the bending table 300, and the forward and reverse rotation switch 3121 and the three-phase asynchronous motor 312 are electrically connected with a forward loop and a reverse loop through a lead. The forward and reverse rotation switch 3121 is conventional in the art, and is not described in detail herein. The principle of the forward and reverse rotation of the three-phase asynchronous motor 312 is that any two phases in the phase sequence of the power supply are reversed, usually the V phase is unchanged, the U phase and the W phase are reversed and are connected with the forward and reverse rotation switch 3121 through a lead to form two loops, the forward loop is the forward button of the forward and reverse rotation switch 3121, the reverse loop is the backward button of the forward and reverse rotation switch 3121, and the forward and reverse rotation switch 3121 is also provided with a middle button which is a stop button, so that the three-phase asynchronous motor 312 is stopped, and the forward and reverse rotation is favorably switched.

Further, the front end of the top surface of the bending table 300 is provided with an arc-shaped guide groove 301 concentric with the output shaft of the three-phase asynchronous motor 312, and the bottom surface of the bending seat 313 is welded with a sliding block 3132 slidably connected with the guide groove 301, so that the bending seat 313 is ensured to rotate stably on the bending table 300 and to be synchronous with the output shaft of the three-phase asynchronous motor 312, and the control lever 400 is ensured to be bent along the arc degrees of the fixed bending wheel 311 and the fixed bending wheel 317 to reach the designed radian.

In order to ensure that one end of the operating rod 400 is fixed, the top surface of the bending table 300 is provided with a fixing sleeve 303 fixedly connected with one end of the operating rod 400, one end of the fixing sleeve 303 is provided with a slot 3030 inserted with the operating rod 400, the top end of the fixing sleeve 303 is welded with a ring communicated with the slot 3030, the inner side of the ring is provided with threads, the top end of the ring of the fixing sleeve 303 is internally threaded with a pressing rod 3032 capable of pressing the operating rod 400, and the vertical section of the pressing rod 3032 is also provided with threads so as to be connected. The top surface of the bending stage 300 is linearly provided with a plurality of insertion holes 304, the direction of the straight line of the plurality of insertion holes 304 is parallel to the starting position of the positioning rod 3130, and the insertion holes 304 correspond to the middle of the fixed bending wheel 311 and the movable bending wheel 317. The bottom end of the fixed sleeve 303 is welded with an insertion column 3031 inserted with the insertion hole 304, so that the fixed sleeve 303 can be replaced by a corresponding position along with the fixed bending wheel 311 and the fixed bending wheel 317 with different specifications so as to fix the operating rod 400.

When the operating lever 400 is bent, a worker takes out only one operating lever 400 from the material collecting box 200, penetrates the operating lever 400 and the fixed bending wheel 311 and the movable bending wheel 317 to be fixed in the fixing sleeve 303, and operates the operating lever by switching on the power supply of the three-phase asynchronous motor 312, the three-phase asynchronous motor 312 is preferably a motor with large torque and low rotating speed, so that the operating lever 40 is bent in place and the movement process is safe, the three-phase asynchronous motor 312 drives the output shaft of the three-phase asynchronous motor to rotate forwards by pressing the forward button of the forward and reverse rotation switch 3121, so that the fixed bending wheel 311 and the bending seat 313 are synchronously driven to integrally and synchronously rotate, as one end of the operating lever 400 is fixed, the operating lever is bent and formed by the fixed bending wheel 311 and the fixed bending wheel 317 which relatively roll, and stops moving by pressing the middle button until the bending seat 313 reaches the other end of the guide groove 301, and then presses the reverse button to, the bending mechanism 310 is driven to reset until the bending base 313 reaches the initial end of the guide groove 301, the middle button is pressed to stop moving, the pressing rod 3032 is unscrewed at the moment, and the bent operating rod 400 can be taken out.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a processing balance car control lever's bending combination machine that punches a hole, is including the platform (100) of punching a hole that is the type of falling L and the platform (300) of bending that is the box structure, the vertical welding downwards in horizontal top surface both sides of the platform (100) of punching a hole has backup pad (101), the equal vertical welding downwards of bottom surface corner of the platform (300) of bending has support column, its characterized in that: the punching mechanism comprises a punching mechanism (120), wherein a power mechanism (110) is installed at the rear end of the punching table (100), the punching mechanism (120) is installed in front of the power mechanism (110), the power mechanism (110) comprises a servo motor (111) installed on the inner side of the vertical surface of the punching table (100), one end of an output shaft of the servo motor (111) is coaxially connected with a driving wheel (112), at least three annular grooves are formed in the outer circular surface of the driving wheel (112) at equal intervals along the axial direction of the driving wheel, a belt (113) is sleeved inside each annular groove, a driving wheel (114) is sleeved on the inner side of the top of each belt (113), a driving shaft (115) is inserted into a central shaft hole of each driving wheel (114), the driving shaft (115) is arranged above the punching table (100), an eccentric wheel (1152) is tightly installed at the front end of the driving shaft (115), and the punching mechanism (, the punching machine is characterized in that the top surface of the punching plate (121) is in a convex arc shape, a connecting column (1210) is vertically welded at the center of the top surface, counterbores (1211) are symmetrically formed in two ends of the top surface of the punching plate (121), ejector pins (1212) are inserted into the counterbores (1211), bolts are further connected into the counterbores (1211) in a threaded manner, a punching column (122) is arranged right above the center of the punching plate (121), a transverse column (124) which is in sliding connection with the eccentric wheel (1152) is welded at the top end of the punching column (122), a linkage rod (1220) which is connected with and fixed to the connecting column (1210) is vertically welded at the center of the bottom end of the punching column (122), a spring (123) is sleeved on the outer side of the linkage rod (1220), a guide sleeve (125) in a fixed state is sleeved on the outer side of the punching column (122), a rod groove (102) is formed in a position right below the punching plate (121) and on, waist-shaped holes (103) which are inserted with the thimbles (1212) are formed in the two ends of the bottom surface of the rod groove (102);

the material collecting box is characterized in that a box-shaped material collecting box (200) is further installed between the punching platform (100) and the bending platform (300), a square storage cavity (201) is formed in one corner of the inside of the material collecting box (200), the storage cavity (201) is close to one side of the punching platform (100), a grinding material box (210) is placed on one side of a short edge of the storage cavity (201), sand blocks (211) are symmetrically fixed inside the grinding material box (210), clamping edge blocks (212) clamped with the material collecting box (200) are welded on the outer sides of the long and short edges adjacent to the top end of the grinding material box (210), a material guide plate (220) is obliquely placed on one side of the long edge of the storage cavity (201) inside the material collecting box (200), and the top end of the material guide plate (220) leans against the outer side of the storage cavity (201);

the bending device is characterized in that a bending mechanism (310) is installed on the top surface of the bending table (300), the bending mechanism (310) comprises a three-phase asynchronous motor (312) installed on the top surface inside the bending table (300), an output shaft of the three-phase asynchronous motor (312) penetrates through the top of the bending table (300) and is sleeved with a fixed bending wheel (311), one side of the fixed bending wheel (311) is provided with a bending seat (313) which rotates synchronously with the fixed bending wheel, a positioning rod (3130) is vertically arranged on the inner side of the bottom end of the bending seat (313), a lantern ring (3131) sleeved with the output shaft of the three-phase asynchronous motor (312) is welded at the front end of the positioning rod (3130), a movable pressing rod (314) capable of vertically overturning is hinged to the inner side of the top end of the bending seat (313), the positioning rod (3130) is arranged below the fixed bending wheel (311), and the movable pressing rod (314) is arranged above, activity depression bar (314) with spout (315) have been seted up at the top surface middle part of locating lever (3130), sliding connection has spacing cap (316) in spout (315) of locating lever (3130), the both sides of spacing cap (316) be the perpendicular and with the medial surface laminating of spout (315), the shrinkage pool of in-band screw thread is seted up at the top center of spacing cap (316), activity depression bar (314) with place between locating lever (3130) with decide curved wheel (311) roll connection's dynamic bending wheel (317), the inside of dynamic bending wheel (317) is provided with rotates handle (318), just rotation handle (318) pass the centre bore of dynamic bending wheel (317) with the shrinkage pool threaded connection of spacing cap (316), decide curved wheel (311) with the joint has control lever (400) between dynamic bending wheel (317).

2. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the front end center of transmission shaft (115) is equipped with cover post (1150), the bilateral symmetry of cover post (1150) is equipped with spacing (1151) that is the square strip form, eccentric wheel (1152) the terminal surface and skew its center department set up with cover post (1150) and spacing (1151) eccentric hole (1153) of pegging graft, the middle part outside cover of transmission shaft (115) is equipped with and supports cover (119), the vertical welding in bottom surface of supporting cover (119) has bracing piece (1190), bracing piece (1190) with punching press platform (100) passes through bolt fixed connection.

3. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the rear end of the punching table (100) is fixedly connected with a protective shell (116) through a bolt, the protective shell (116) covers the driving wheel (112) and the outside of the driving wheel (114), bearings (117) are welded on the upper portion and the lower portion of the inner side face of the protective shell (116), the bearings (117) on the upper portion and the lower portion are respectively connected with the transmission shaft (115) and an output shaft of the servo motor (111) in a sleeved mode, and a connecting rod (118) is further welded between the bearings (117).

4. The punching and bending combination machine for machining the balance car operating lever according to claim 2, wherein: the hole with spliced pole (1210) are pegged graft is seted up at the bottom center of gangbar (1220), the bottom side and the perpendicular to of gangbar (1220) the center pin orientation of eccentric wheel (1152) has run through the pin, the bottom surface of uide bushing (125) seal and the center seted up with the through-hole that gangbar (1220) were pegged graft, the rear side welding of uide bushing (125) has suspension pole (1250), the rear end of suspension pole (1250) with bracing piece (1190) passes through bolt fixed connection.

5. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: pole groove (102) with control rod (400) joint cooperation, the middle part in pole groove (102) has been seted up and has been dodged groove (1020), the length in pole groove (102) is greater than the length of control rod (400), and the width equals, the inside both ends joint of pole groove (102) has not unidimensional locating piece (104), the horizontal segment bottom surface of platform (100) of punching a hole just is located the symmetrical welding of below has cutting (1010) that are the L type, and is every right the below of cutting (1010) is all pegged graft and is had waste material box (1011).

6. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the top surface the place ahead of platform (100) of punching a hole transversely welds there is elasticity strip (105), elasticity strip (105) are C font and the lower extreme is the plane, the both ends of elasticity strip (105) just are located all weld on platform (100) of punching a hole has fixed block (106), fixed block (106) orientation one side of elasticity strip (105) articulates there is pressure material strip (107) that are the circular arc bulge form, the hinged end of pressure material strip (107) is equipped with connecting block (1070) that are cylindrical structure, flat pressing surface (1071) have been seted up to the bottom surface of connecting block (1070), flat pressing surface (1071) with the top surface laminating of elasticity strip (105), the top surface symmetrical welding of platform (100) of punching a hole have with fixture block (108) of pressure material strip (107) front end joint.

7. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the top both sides symmetrical welding of case (200) of gathering materials has suspension piece (202) that are the type of falling L, punch a hole platform (100) with the top one side welding of platform (300) of bending have with suspension piece (202) joint complex card strip (109), the bottom surface symmetrical welding of abrasive material box (210) has the bar pole, and the bar pole with sand piece (211) closely pegs graft the cooperation, two sand piece (211) all with control rod (400) are pegged graft, two the interval of sand piece (211) does the twice of control rod (400) wall thickness, a plurality of square grooves (221) have been seted up to the top surface equidistant of stock guide (220), the inside of square groove (221) is provided with rotatable roller (222), the side of stock guide (220) runs through there is the pin and the pin passes the center pin of roller (222).

8. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the top surface of lantern ring (3131) be provided with flat bearing (302) that three-phase asynchronous motor (312) output shaft cup jointed, the welding of the output shaft top of three-phase asynchronous motor (312) has square (3120), the front end of activity depression bar (314) seted up with square hole (3140) of square (3120) joint, install positive and negative switch (3121) on the front end lateral surface of platform (300) of bending, positive and negative switch (3121) with three-phase asynchronous motor (312) have two positive and negative return circuits through wire electric connection.

9. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the front end of the top surface of the bending table (300) is provided with an arc-shaped guide groove (301) concentric with the output shaft of the three-phase asynchronous motor (312), and the bottom surface of the bending seat (313) is welded with a sliding block (3132) in sliding connection with the guide groove (301).

10. The punching and bending combination machine for machining the balance car operating lever according to claim 1, wherein: the top surface of the bending table (300) is provided with a fixed sleeve (303) fixedly connected with one end of the operating rod (400), one end of the fixed sleeve (303) is provided with a slot (3030) connected with the operating rod (400) in an inserting mode, the top end of the fixed sleeve (303) is in threaded connection with a pressing rod (3032) capable of pressing the operating rod (400), the top surface of the bending table (300) is provided with a plurality of inserting holes (304) in a straight line mode, and the bottom end of the fixed sleeve (303) is welded with inserting columns (3031) connected with the inserting holes (304) in an inserting mode.