CN108284347B - Semi-automatic drilling machine - Google Patents

Abstract

The invention discloses a semi-automatic drilling machine, comprising a bottom plate, a feeding mechanism, a positioning mechanism, a clamping mechanism, a drilling mechanism, a discharging mechanism and a transmission mechanism. The positioning mechanism is a cam link mechanism, and the feeding mechanism and the positioning mechanism cooperate to realize positioning , the clamping mechanism is a cam linkage mechanism, the drilling mechanism drills the parts to be processed that are clamped on the drilling station of the worktable, the discharging mechanism is a plane seven-bar mechanism, and the transmission mechanism includes a belt Transmission and gearing. The invention realizes the reciprocating linear motion of the feeding slider, the intermittent reciprocating linear motion of the positioning rod, the intermittent reciprocating linear motion of the clamp, the intermittent reciprocating linear motion of the tool, and the discharging motion of the seven-bar discharging mechanism after the processing is completed. The production efficiency also achieves the advantages of simplifying the structure, reducing production and maintenance costs, and saving manpower.

Description

A semi-automatic drilling machine

technical field

The invention relates to a semi-automatic drilling machine, which belongs to the technical field of machinery.

Background technique

In recent years, with the continuous increase of attention and investment in mechanical automation production, the level of science and technology in my country has rapidly improved. Among them, the processing equipment represented by hole processing is also rapidly developing and innovating, making automatic drilling mechanisms replace traditional Drilling has become an inevitable trend.

At present, the drilling mechanism on the market is too large in size, large in investment cost, complicated in maintenance and high in maintenance cost, and at the same time, the production efficiency is not high, especially for small and medium-sized enterprises, the cost is huge, which seriously affects the economic benefits of the enterprise. Therefore, based on the above problems, the present invention provides a semi-automatic drilling machine, which achieves the advantages of simplified structure, reduced production and maintenance costs, high automation and high production efficiency while ensuring productivity, and is especially suitable for small and medium-sized enterprises. Drilling of small parts.

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art, the present invention proposes a semi-automatic drilling machine, which has a compact structure and realizes the reciprocating linear motion of the feeding slider, the intermittent reciprocating linear motion of the positioning rod, the intermittent reciprocating linear motion of the fixture, and the intermittent reciprocating linear motion of the cutter. And the discharge movement of the seven-bar discharge mechanism after the processing is completed, effectively solves the shortcomings of the existing drilling machine, such as excessive size, high production and maintenance costs, and low production efficiency, and achieves the purpose of improving productivity, saving manpower, and reducing costs.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

A semi-automatic drilling machine, comprising a bottom plate, a feeding mechanism, a positioning mechanism, a clamping mechanism, a drilling mechanism, a discharging mechanism and a transmission mechanism, a motor and a worktable are fixed on the bottom plate, and the feeding mechanism is a crank connecting rod mechanism, The positioning mechanism is a cam linkage mechanism, and the feeding mechanism cooperates with the positioning mechanism to achieve positioning, which is used to push the parts to be processed on the worktable to the drilling station. The parts to be processed that are pushed to the drilling station on the worktable are clamped, the drilling mechanism performs drilling processing on the parts to be processed that are clamped on the drilling station of the worktable, and the material is discharged. The mechanism is a plane seven-bar mechanism, which pulls the processed parts on the drilling station of the worktable into the discharge chute. The transmission mechanism includes belt transmission and gear transmission, which are used for the feeding mechanism, positioning mechanism, Transmission connection of clamping mechanism and drilling mechanism.

Preferably, the feeding mechanism includes a crank, a feeding rocker base, a feeding rocker, a crank connecting rod, a slider connecting rod, a feeding slider, a crank shaft and a base plate boss, and the crank shaft is fixedly installed on the base plate boss On the table, the crank is installed on the crank shaft and is connected with the crank shaft in rolling fit. One end of the crank connecting rod is connected to the crank, and the other end is hinged to the middle of the feeding swing rod. One end is hinged with the base of the feeding pendulum, the other end is hinged with one end of the slider link, the other end of the slider link is hinged with the feeding slider, and the feeding slider is arranged on the workbench and slides along the bottom surface of the worktable, and the base of the feeding pendulum is fixed on the bottom plate.

Preferably, the positioning mechanism includes a positioning cam, a positioning cam roller, a positioning link, a positioning link support frame, a positioning mechanism inner hexagon bolt, a first spring, a positioning rod and a positioning camshaft, and one end of the positioning link is installed The positioning cam roller is in direct contact with the positioning cam, the positioning cam shaft is installed on the side of the baffle of the drilling mechanism, and is connected with the baffle of the drilling mechanism in rolling fit, and the positioning cam is installed On the positioning camshaft and in driving cooperation with the positioning camshaft, the bottom of the positioning link is installed in the fixing hole at the lower end of the positioning link support frame, and slides along the fixing hole at the lower end of the positioning link support frame. The upper end of the positioning link support frame is fixed on the baffle plate of the drilling mechanism through the inner hexagon bolt of the positioning mechanism, the middle part of the positioning link is connected with the middle part of the link support frame through the first spring, and the upper end of the positioning link is connected with the positioning rod One end is fixedly connected, and the other end of the positioning rod passes through the positioning hole opened on the side of the drilling station of the workbench, and reciprocates along the positioning hole of the workbench.

Preferably, the clamping mechanism includes a clamping cam, a clamping cam roller, a second spring, a clamping link, a clamping link support frame, a clamping mechanism socket head bolt, a clamping mechanism baffle, a clamp and The clamping camshaft, one end of the clamping connecting rod is installed with a clamping cam roller, the clamping camshaft is installed on the side of the clamping mechanism baffle and is connected with it in rolling fit, and the clamping cam is installed on the clamping camshaft. The clamping cam roller is in direct contact with the clamping cam, and the bottom end of the clamping connecting rod is installed in the fixing hole at the lower end of the clamping connecting rod support frame, and is arranged along the clamping The fixing hole at the lower end of the clamping link support frame slides, the middle part of the clamping link is connected with the middle part of the clamping link support frame through the second spring, the top end of the clamping link is fixedly connected with the clamp, and the bottom surface of the clamp is connected to the clamp. The bottom surfaces of the worktables are coplanar.

Preferably, the drilling mechanism includes a drilling cam, a drilling cam roller, an L-shaped link, a third spring, a drilling rocker, a large tooth profile link, a large tooth profile, a rack and pinion mechanism, a rack A positioning rod, a power head, a cutter and a drilling camshaft, one end of the L-shaped connecting rod is provided with a drilling cam roller, the drilling cam roller is in direct contact with the drilling cam, and the drilling cam The shaft is installed on the side of the baffle of the drilling mechanism, and is connected with the baffle of the drilling mechanism in rolling fit. The fixing hole in the middle is in clearance fit with the rotating shaft on the baffle plate of the drilling mechanism, the other end of the L-shaped link is connected with the boss on the baffle plate of the drilling mechanism through a third spring, and one end of the drilling rocker rod is connected to the baffle plate of the drilling mechanism. One end of the L-shaped link connected to the third spring is hinged, the other end of the drilling rocker rod is hinged with one end of the large tooth profile connecting rod, the other end of the large tooth profile connecting rod is connected with the large tooth profile, and the large tooth profile connecting rod is connected with the large tooth profile. The fixed hole in the middle of the tooth profile connecting rod is in clearance fit with the rotating shaft on the baffle plate of the drilling mechanism. The rack and pinion mechanism includes two gears and a rack, and the two gears are meshed with each other, and one of the gears is connected with the large tooth profile. The other gear is meshed and connected with the rack, the two gears are in clearance fit with the gear shaft on the baffle of the drilling mechanism, and one end of the positioning rod of the rack is fixed on the baffle of the drilling mechanism On the boss of the rack, the other end is clearance fit with the fixing hole of the rack, and the rack moves up and down along the rack positioning rod, the power head and the rack are welded and fixed, and the tool is installed on the power The bottom of the head and above the drilling station of the table.

Preferably, the discharging mechanism is a symmetrical seven-bar mechanism, including a zigzag connecting rod, two discharging swing rods, two discharging connecting rods, two discharging sliders, and two return springs. The tang-shaped connecting rod is fixed on the fixture, the two discharging swing rods are respectively symmetrically hinged on both ends of the tang-shaped connecting rod, and one end of the two discharging connecting rods is symmetrically hinged on the two discharging pendulums respectively. In the middle of the rod, the other ends of the two discharging connecting rods are respectively hinged with a discharging sliding block, the inside of the two sides of the tang-shaped connecting rod are respectively provided with guide columns, and the two discharging sliding blocks are respectively installed on the guide rods. The two return springs are respectively sleeved on the two guide columns, and the two ends of each return spring are respectively connected to the discharge slider and the zigzag connecting rod.

Preferably, a hopper is set on the worktable, the hopper is fixed on the baffle plate of the drilling mechanism by hexagon socket bolts, and a hole with a diameter larger than the diameter of the tool is set on the drilling station of the worktable, and its hole The center line of the tool coincides with the center line of the tool, and a discharge chute groove is set on one side of the drilling station of the worktable, wherein the discharge chute groove includes two baffles and a discharge chute groove The bottom plate, the baffles are fixedly arranged on both sides of the bottom plate of the discharge chute groove.

Preferably, the motor is fixed on the base plate through hexagon socket head bolts, and the worktable is fixed on the base plate through two support columns.

Preferably, the transmission mechanism includes a motor, a first pulley drive train, a second pulley drive train, a third pulley drive train, a fourth pulley drive train, a fifth pulley drive train, a gear train and The main shaft, the gear train includes a worm gear train and a bevel gear train, the motor is drive-connected to the first worm gear train through the first pulley, and the main shaft is mounted on the second worm gear train. On the turbine, the first worm gear train is drivingly connected with the second worm gear train, the main shaft is drivingly connected with the positioning cam of the positioning mechanism through the second pulley gear train, and the cam of the positioning mechanism is drivingly connected. The third pulley drive train is drivingly connected with the drilling cam of the drilling mechanism, the main shaft is connected with the clamping cam of the clamping mechanism through the fourth pulley drive train, and the main shaft is reversed by the bevel gear drive train. It is connected with the feeding mechanism through a fifth pulley drive train.

Preferably, the clamping link has a "Z" type structure.

Beneficial effects: The present invention provides a semi-automatic drilling machine, which realizes the reciprocating linear motion of the feeding slider, the intermittent reciprocating linear motion of the positioning rod, the intermittent reciprocating linear motion of the fixture, the intermittent reciprocating linear motion of the cutter, and the machining After completion of the discharge movement of the seven-bar discharge mechanism, the production efficiency is ensured, and the structure is simplified, the production and maintenance costs are reduced, and the manpower is saved.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the schematic diagram of the feeding mechanism of the present invention

3 is a schematic diagram of the positioning mechanism of the present invention;

4 is a schematic diagram of the clamping mechanism of the present invention;

5 is a schematic diagram of the drilling mechanism of the present invention;

FIG. 6 is a schematic diagram of the discharging mechanism of the present invention.

In the figure: 1-motor, 2-first pulley drive train, 3-fifth pulley drive train, 4-fourth pulley drive train, 5-clamping mechanism baffle, 6-hopper, 7-third Pulley drive train, 8-second pulley drive train, 9-bevel gear drive train, 10-base plate, 11-spindle, 12-first worm gear drive train, 13-crank, 14-feeding swing rod base, 15- -Feeding swing rod, 16-crank connecting rod, 17-support column, 18-slider connecting rod, 19-feeding slider, 20-table, 21-workpiece, 22-discharge chute, 23-discharge Chute groove bottom plate, 24-baffle plate, 25-positioning cam, 26-positioning cam roller, 27-positioning connecting rod, 28-positioning connecting rod support frame, 29-first spring, 30-positioning mechanism socket head cap bolt, 31-Positioning rod, 32-Clamping connecting rod, 33-Second spring, 34-Clamping connecting rod support frame, 35-Clamping cam, 36-Clamping cam roller, 37-Clamping mechanism socket head cap bolt, 39-Clamp, 40-Drilling cam roller, 41-L-type connecting rod, 42-Third spring, 43-Drilling swing rod, 44-Rack positioning rod, 45-Tool, 46-Power head, 47- Rack, 48-gear and rack mechanism, 49-large tooth profile, 50-large tooth profile connecting rod, 51-drilling cam, 52-drilling mechanism baffle, 53-discharge slider, 54-shaped connection Rod, 55-guide column, 56-return spring, 57-discharge connecting rod, 58-discharge swing rod, 59-positioning hole, 60-crank shaft, 61-base plate boss, 62-positioning camshaft, 63- Clamping camshaft, 64-second worm gear train, 65-drilling camshaft.

Detailed ways

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, and Not all examples. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

As shown in FIG. 1, a semi-automatic drilling machine includes a bottom plate 10, a feeding mechanism, a positioning mechanism, a clamping mechanism, a drilling mechanism, a discharging mechanism and a transmission mechanism, and a motor 1 and a worktable 20 are fixed on the bottom plate 10, The feeding mechanism is a crank connecting rod mechanism, the positioning mechanism is a cam connecting rod mechanism, and the feeding mechanism cooperates with the positioning mechanism to achieve positioning, and is used to push the parts to be processed on the worktable to the drilling station. The clamping mechanism is a cam linkage mechanism, which clamps the parts to be processed that are pushed to the drilling station on the worktable, and the drilling mechanism clamps the to-be-processed parts on the drilling station of the worktable. The parts are drilled, and the discharge mechanism is a plane seven-bar mechanism, which pulls the processed parts on the drilling station of the worktable into the discharge chute, and the transmission mechanism includes a belt drive and a gear drive. It is connected to the transmission of the feeding mechanism, the positioning mechanism, the clamping mechanism and the drilling mechanism.

Preferably, as shown in Figures 1 and 2, the feeding mechanism includes a crank 13, a feeding rocker base 14, a feeding rocker 15, a crank connecting rod 16, a slider connecting rod 18, a feeding slider 19, a crank shaft 60 and Bottom plate boss 61, the crank shaft 60 is fixedly mounted on the bottom plate boss 60, the crank 13 is mounted on the crank shaft 60, and is connected with the crank shaft 60 in rolling fit, and one end of the crank connecting rod 16 is connected The other end of the crank 13 is hinged with the middle of the feeding swing rod 15 , one end of the feeding swing rod 15 is hinged with the feeding swing rod base 14 , and the other end is hinged with one end of the slider connecting rod 18 . The other end of the slider connecting rod 18 is hinged with the feeding slider 19, the feeding slider 19 is arranged on the worktable and slides along the bottom surface of the worktable, and the feeding swing rod base 14 is fixed on the bottom plate , the rotation of the crank 13 drives the crank connecting rod 16 to rotate, and the crank connecting rod 16 pulls the feeding swing rod 15 to swing, thereby driving the slider connecting rod 18 to swing, and the slider connecting rod 18 pushes the feeding slider 19 along the working table 20 The bottom surface slides back and forth to realize the function of reciprocating feeding.

Preferably, as shown in Figures 1 and 3, the positioning mechanism includes a positioning cam 25, a positioning cam roller 26, a positioning link 27, a positioning link support frame 28, a positioning mechanism socket head bolt 30, a first spring 29, The positioning rod 31 and the positioning cam shaft 62, the positioning cam roller 26 is installed at one end of the positioning link 27, and the positioning cam roller 26 is in direct contact with the positioning cam 25, and the positioning cam shaft 62 is installed in the drilled hole The side of the mechanism baffle 52 is connected with the drilling mechanism baffle 52 in rolling fit. The positioning cam 25 is mounted on the positioning cam shaft 62 and is connected with the positioning cam shaft 62 in a driving fit. The positioning cam 25 is in the second pulley drive train 8 The bottom of the positioning link 27 is installed in the fixing hole at the lower end of the positioning link support frame 28 and slides along the fixing hole at the lower end of the positioning link support frame 28 , to achieve the positioning function, the upper end of the positioning link support frame 28 is fixed on the drilling mechanism baffle 52 through the positioning mechanism inner hexagon bolt 30, the middle part of the positioning link 27 is connected to the middle part of the link support frame 28 through the first spring 29 Connected, the first spring 29 is stretched during the positioning process, and when the positioning cam 25 returns, the first spring 29 pulls the positioning link 27 to realize the return function. The upper end of the positioning link 27 is fixedly connected with one end of the positioning rod 31, and the other end of the positioning rod 31 passes through the positioning hole 59 opened on the side of the drilling station of the workbench 20, and is along the positioning hole 59 of the workbench. The reciprocating motion finally realizes the positioning function.

Preferably, as shown in FIGS. 1 and 4 , the clamping mechanism includes a clamping cam 35, a clamping cam roller 36, a second spring 33, a clamping link 32, a clamping link support frame 34, a clamping The inner hexagon bolt 37 of the mechanism, the clamping mechanism baffle 5, the clamp 39 and the clamping camshaft 63, the clamping cam roller 36 is installed at one end of the clamping link 32, and the clamping cam roller 36 is connected with the clamp The clamping cam 35 is in direct contact, the clamping cam shaft 63 is installed on the side of the clamping mechanism baffle 5 and is connected with it in a rolling fit, the clamping cam 35 is installed on the clamping cam shaft 63 and is connected in a driving fit with the clamping cam shaft 63. The clamping cam 35 rotates under the transmission action of the fourth pulley drive train 4, thereby driving the clamping cam rollers to rotate, and the bottom end of the clamping link 32 is installed in the fixing hole at the lower end of the clamping link support frame 34, and slide along the fixing hole at the lower end of the clamping link support frame 34 to realize the positioning function; the middle part of the clamping link 32 is connected with the middle part of the clamping link support frame 34 through the second spring 33, and the first The second spring 33 is stretched during the clamping process, and when the clamping cam 35 returns, the second spring 33 pulls the clamping link 32 to realize the return function; the clamping link The top end of 32 is fixedly connected to the clamp 39, the bottom surface of the clamp 39 is coplanar with the bottom surface of the worktable, and the clamping connecting rod 32 pushes the clamp 39 to move along the bottom surface of the worktable 20, finally realizing the clamping function.

Preferably, as shown in Figures 1 and 5, the drilling mechanism includes a drilling cam 51, a drilling cam roller 40, an L-shaped connecting rod 41, a third spring 42, a drilling rocker rod 43, a large tooth profile connection Rod 50, large tooth profile 49, rack and pinion mechanism 48, rack positioning rod 44, power head 46, cutter 45 and drilling camshaft 65, one end of the L-shaped connecting rod 41 is equipped with the drilling cam roller 40, so The drilling cam roller 40 is in direct contact with the drilling cam 51, the drilling cam shaft 65 is installed on the side of the drilling mechanism baffle 52, and is connected with the drilling mechanism baffle 52 in rolling fit. The drilling cam 51 is mounted on the drilling cam shaft 65 and is connected with the drilling cam shaft 65 in driving cooperation. Rotating, the fixing hole in the middle of the L-shaped link 41 is in clearance fit with the rotating shaft on the baffle plate 52 of the drilling mechanism, and the drilling cam 51 pushes the L-shaped link 41 to rotate around the rotating shaft, and the L-shaped link 41 The other end is connected to the boss on the baffle plate 52 of the drilling mechanism through the third spring 42, the L-shaped link 41 rotates, so that the third spring 42 is stretched, and the pulling force of the third spring 42 makes the drilling cam roller 40 is always in contact with the drilling cam 51, one end of the drilling rocker rod 43 is hinged with one end of the L-shaped link 41 connected to the third spring 42, and the other end of the drilling rocker rod 43 is connected with the large tooth profile link One end of 50 is hinged, the other end of the large tooth profile connecting rod 50 is connected with the large tooth profile 49, and the fixing hole in the middle of the large tooth profile connecting rod 50 is clearance fit with the rotating shaft on the baffle plate 52 of the drilling mechanism, so The drilling rocker 43 drives the large tooth profile connecting rod 50 to rotate around the shaft. The rack and pinion mechanism includes two gears and a rack, and the two gears are meshed with each other, and one gear is meshed with the large tooth profile. , the other gear is meshed with the rack, and the two gears are in clearance fit with the gear shaft on the baffle plate 52 of the drilling mechanism to prevent the rack 47 from moving during the drilling process and affect the drilling accuracy. ; One end of the rack positioning rod 44 is fixed on the boss of the baffle plate 52 of the drilling mechanism, and the other end is clearance fit with the fixing hole of the rack, and the rack is positioned along the rack positioning rod 44 Moving up and down, the cutter 45 completes the drilling function, the power head 46 is welded and fixed to the rack, and the cutter is installed at the bottom of the power head 46 above the drilling station of the workbench.

Preferably, as shown in FIGS. 5 and 6 , the discharging mechanism is a symmetrical seven-bar mechanism, including a cam-shaped connecting rod 54 , two discharging swing rods 58 , two discharging connecting rods 57 , and two discharging rods. The material slide block 53, two return springs 56, the said shovel-shaped connecting rod 54 is fixed on the clamp 39, the two discharging swing rods 58 are symmetrically hinged on both ends of the sang-shaped connecting rod 54, the two One end of the discharge link 57 is symmetrically hinged to the middle of the two discharge swing rods 58, and the other end of the two discharge links 57 is hinged to a discharge slider 53 respectively. 54 There are guide posts 55 on both sides, the two discharge sliders 53 are respectively installed on the guide posts 55 and slide along the guide posts, and the two return springs 56 are sleeved on the two guide posts respectively. and the two ends of each return spring 56 are respectively connected to the discharge slider 53 and the cam-shaped connecting rod. When the clamping cam 35 enters the push stroke, the workpiece 21 abuts the discharge swing rod 58 and further The discharge swing rod 58 is rotated, and the discharge swing rod 58 drives the discharge link 57 to rotate, thereby making the discharge slider 53 move along the guide column 55, and the discharge slider 53 moves along the guide column 55. The return spring 56 is compressed during this process. When the clamping mechanism reaches the designated clamping position, the return spring 56 releases the elastic potential energy, so that the discharge rocker 58 returns to the original position. When the tightening mechanism is returned to its original position, the discharging swing rod 58 pulls the processed workpiece 21 into the discharging chute 22 to realize the automatic discharging function.

Preferably, a hopper 6 is provided on the worktable 20, the hopper is fixed on the baffle plate 52 of the drilling mechanism by hexagon socket bolts, and a hole with a diameter larger than the diameter of the tool is set on the drilling station of the worktable, And the center line of the hole coincides with the center line of the tool to prevent the tool 45 from damaging the table surface of the workbench 20. One side of the drilling station of the workbench is provided with a discharge chute groove 22, wherein the discharge slide The chute 22 includes two baffles 24 and a bottom plate 23 of the discharge chute. The baffles 24 are fixedly arranged on both sides of the bottom plate 23 of the discharge chute.

Preferably, the motor 1 is fixed on the base plate 10 through hexagon socket head bolts, and the worktable 20 is fixed on the base plate 10 through two support columns 17 .

Preferably, the transmission mechanism includes a motor 1, a first pulley drive train 2, a second pulley drive train 8, a third pulley drive train 7, a fourth pulley drive train 4, and a fifth pulley drive train 3. Gear train and main shaft 11, the gear train includes a worm gear train and a bevel gear train 9, the motor 1 is connected to the first worm gear train 12 via the first pulley train 2, so The main shaft 11 is mounted on the turbine of the second worm gear train 64, the first worm gear train 12 is drivingly connected with the second worm gear train 64, and the main shaft 11 passes through the second pulley drive train 8. It is drivingly connected with the positioning cam 25 of the positioning mechanism, the cam 25 of the positioning mechanism is drivingly connected with the drilling cam 51 of the drilling mechanism through the third pulley drive train 7, and the main shaft 11 passes through the fourth pulley drive train. 4. It is drivingly connected with the clamping cam 35 of the clamping mechanism, and the main shaft 11 is driven and connected with the feeding mechanism through the fifth pulley transmission 3 after being reversed by the bevel gear transmission 9.

Preferably, the clamping link has a "Z" type structure.

The working principle of the present invention is as follows:

When the parts need to be processed, put the parts to be processed into the hopper and put them on the workbench, then turn on the motor, which is driven by the motor through the first pulley drive train 2 and the first turbine worm drive train 12 to be installed on the second turbine worm drive The main shaft 11 on the turbine of the system 64 rotates; then the main shaft 11 is reversed by the bevel gear transmission 9 and drives the crank 13 in the feeding mechanism to rotate through the fifth pulley transmission 3, thereby driving the crank connecting rod 16 connected to the crank. Rotate, thereby pulling the feeding pendulum rod 15 to swing, and the feeding pendulum rod 15 drives the slider link 18 to swing, thereby driving the feeding slider 19 hinged with the slider link 18 to push the to-be-processed part 21 on the worktable along the worktable The bottom surface reaches the drilling station, so as to realize the feeding function;

When the feeding slider 19 pushes the to-be-processed part 21 to the drilling station, the main shaft 11 drives the positioning cam 25 of the positioning mechanism to rotate through the second pulley drive train 8 , and the positioning cam 25 pushes the positioning cam 25 through the positioning cam roller 26 for positioning The connecting rod 27 moves along the fixing hole of the positioning connecting rod support frame 28, thereby pushing the positioning rod 31 connected to the end of the positioning connecting rod 27 to move along the positioning hole 59 opened on the worktable 20, so as to realize the positioning function and make the material feeding The sliding block 19 can accurately push the to-be-processed part 21 to the drilling processing station of the worktable. At the same time, during the positioning process, the first spring 29 arranged between the positioning link support frame 28 and the positioning link 27 is stretched, and when the positioning cam 25 returns, the first spring 29 pulls the positioning link 27 to achieve Return function.

When the part 21 to be processed is accurately pushed to the drilling station, the feeding mechanism immediately returns, and the main shaft 11 drives the clamping cam 35 of the clamping mechanism to rotate through the fourth pulley drive train 4, and the clamping cam 35 rotates through the clamping cam The roller 36 pushes the clamping link 32 to move along the fixing hole of the clamping link support frame 34, and the clamp 39 fixedly connected to the top of the clamping link 32 moves along the bottom surface of the table under the push of the clamping link 32, and the clamp When the tightening cam 35 reaches the far rest, the workpiece 21 to be processed is clamped, and the continuous clamping is realized by relying on the pressure-holding characteristics of the cam. The second spring between the racks is stretched, and when the clamping cam 35 returns, the second spring 33 pulls the clamping link 32 to achieve the return function.

When the clamp 39 reaches the designated position, the positioning cam 25 drives the drilling cam 51 of the drilling mechanism to rotate through the third pulley drive train 7, and the fixed hole in the middle of the L-shaped link 41 is connected to the hole on the baffle plate 52 of the drilling mechanism. The rotating shaft is clearance fit, the drilling cam 51 pushes the L-shaped connecting rod 41 to rotate around the rotating shaft on the baffle plate 52 of the drilling mechanism through the drilling cam roller, and the L-shaped connecting rod 41 drives the drilling swing rod 43 to rotate, thereby driving the large tooth The profile connecting rod 50 rotates around the rotating shaft on the baffle plate 52 of the drilling mechanism, and the large tooth profile 49 arranged at one end of the large tooth profile connecting rod 50 meshes with the rack and pinion mechanism 48, and is driven by the rack and pinion mechanism 48 to be welded on the tooth. The power head 46 on the bar 47 moves up and down, and the cutter 45 disposed at the bottom of the power head 46 moves up and down accordingly, so that the cutter 45 completes the drilling function. In addition, the third spring 42 connected between one end of the L-shaped link 41 and the boss of the drilling mechanism baffle 52 is stretched during the rotation of the L-shaped link 41, and the pulling force of the third spring 42 makes the drilling cam roll. The sub 40 is always in contact with the drilling cam 51, and the rack positioning rod 44 is in clearance fit with the inner fixed hole of the rack 47 to prevent the rack 47 from moving during the drilling process and affecting the drilling accuracy .

When the processing of the part to be processed is completed, the drilling mechanism returns first, then the positioning mechanism returns, and finally the clamping mechanism returns, and the discharging mechanism uses the clamping mechanism to return to the position to discharge the material. When the clamping cam 35 enters the push stroke, During the process that the fixture 39 is gradually approaching the workpiece 21 to be processed, the part to be processed 21 presses against the discharge swing rod 58 to rotate the discharge swing rod 58, and the discharge swing rod 58 drives the discharge link 57 to rotate, thereby making the discharge slide. The block 53 moves along the guide column 55, and the return spring 56 sleeved on the guide column is compressed during this process. When the clamping mechanism clamps the workpiece (the clamping cam 35 reaches the far rest), the reset The spring 56 releases elastic potential energy, so that the discharge swing rod 58 returns to its original position. When the clamping mechanism returns, the discharge swing rod 58 pulls the processed workpiece 21 into the discharge chute 22 to realize the automatic discharge function.

In the present invention, each mechanism is designed to work in sequence through the cooperation design of each cam, camshaft and shaft, which belongs to a conventional technical means. Those skilled in the art can adjust the cam of each mechanism according to the working order of each mechanism in the description. , camshaft and shaft are designed so that each mechanism can work in sequence. In the present invention, except for the first pulley drive train, all the other pulley drive trains use synchronous belts.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Both modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The semi-automatic drilling machine is characterized by comprising a bottom plate (10), a feeding mechanism, a positioning mechanism, a clamping mechanism, a drilling mechanism, a discharging mechanism and a transmission mechanism, wherein a motor (1) and a workbench (20) are fixed on the bottom plate (10), the feeding mechanism is a crank-link mechanism, the positioning mechanism is a cam-link mechanism, the feeding mechanism is matched with the positioning mechanism to realize positioning, the feeding mechanism is used for pushing a part to be processed on the workbench to a drilling station, the clamping mechanism is the cam-link mechanism and clamps the part to be processed pushed to the drilling station on the workbench, the drilling mechanism carries out drilling processing on the part to be processed which is clamped on the drilling station of the workbench, the discharging mechanism is a planar seven-rod mechanism and pulls the processed part on the drilling station of the workbench into a discharging chute, the transmission mechanism comprises belt transmission and gear transmission, the feeding mechanism, the positioning mechanism, the clamping mechanism and the drilling mechanism are in transmission connection;

the discharge mechanism is a symmetrical seven-rod mechanism and comprises a U-shaped connecting rod (54), two discharge swing rods (58), two discharge connecting rods (57), two discharge sliding blocks (53) and two return springs (56), the U-shaped connecting rod (54) is fixed on a clamp (39), the two discharge swing rods (58) are symmetrically hinged to two ends of the U-shaped connecting rod (54), one ends of the two discharge connecting rods (57) are symmetrically hinged to the middle parts of the two discharge swing rods (58), the other ends of the two discharge connecting rods (57) are hinged to one discharge sliding block (53), guide columns (55) are arranged inside two sides of the U-shaped connecting rod (54), the two discharge sliding blocks (53) are mounted on the guide columns (55) respectively and slide along the guide columns, the two return springs (56) are sleeved on the two guide columns respectively, and two ends of each return spring (56) are respectively connected with the discharge sliding block (53) and the U-shaped connecting rod.

2. The semi-automatic drilling machine according to claim 1, characterized in that the feeding mechanism comprises a crank (13), a feeding swing rod base (14), a feeding swing rod (15), a crank connecting rod (16), a slider connecting rod (18), a feeding slider (19), a crank shaft (60) and a bottom plate boss (61), the crank shaft (60) is fixedly installed on the bottom plate boss (60), the crank (13) is installed on the crank shaft (60) and is connected with the crank shaft (60) in a rolling fit manner, one end of the crank connecting rod (16) is connected with the crank (13), the other end of the crank connecting rod is hinged with the middle part of the feeding swing rod (15), one end of the feeding swing rod (15) is hinged with the feeding swing rod base (14), the other end of the feeding swing rod is hinged with one end of the slider connecting rod (18), and the other end of the slider connecting rod (18) is hinged with the feeding slider (19, the feeding sliding block (19) is arranged on the workbench and slides along the bottom surface of the workbench, and the feeding swing rod base (14) is fixed on the bottom plate.

3. The semi-automatic drilling machine according to claim 1, characterized in that the positioning mechanism comprises a positioning cam (25), a positioning cam roller (26), a positioning connecting rod (27), a positioning connecting rod support frame (28), a positioning mechanism hexagon socket head cap screw (30), a first spring (29), a positioning rod (31) and a positioning cam shaft (62), the positioning cam roller (26) is installed at one end of the positioning connecting rod (27), the positioning cam roller (26) is in direct contact with the positioning cam (25), the positioning cam shaft (62) is installed at the side of the drilling mechanism baffle plate (52) and is in rolling fit connection with the drilling mechanism baffle plate (52), the positioning cam (25) is installed on the positioning cam shaft (62) and is in transmission fit connection with the positioning cam shaft (62), the bottom of the positioning connecting rod (27) is installed in a fixing hole at the lower end of the positioning connecting rod support frame (28), and follow the fixed orifices of location connecting rod support frame (28) lower extreme slides, location connecting rod support frame (28) upper end is fixed on drilling mechanism baffle (52) through positioning mechanism hexagon socket head cap screw (30), location connecting rod (27) middle part is connected through first spring (29) and connecting rod support frame (28) middle part, the upper end and locating lever (31) one end fixed connection of location connecting rod (27), the other end of locating lever (31) pass locating hole (59) that workstation (20) drilling station side was seted up, and along locating hole (59) reciprocating motion of workstation.

4. The semi-automatic drilling machine according to claim 1, characterized in that the clamping mechanism comprises a clamping cam (35), a clamping cam roller (36), a second spring (33), a clamping connecting rod (32), a clamping connecting rod supporting frame (34), a clamping mechanism inner hexagon bolt (37), a clamping mechanism baffle plate (5), a clamp (39) and a clamping cam shaft (63), wherein the clamping cam roller (36) is installed at one end of the clamping connecting rod (32), the clamping cam shaft (63) is installed at the side surface of the clamping mechanism baffle plate (5) and is in rolling fit connection with the clamping mechanism baffle plate, the clamping cam (35) is installed on the clamping cam shaft (63) and is in transmission fit connection with the clamping cam roller (36), the clamping cam roller (35) is in direct contact with the clamping cam, and the bottom end of the clamping connecting rod (32) is installed in a fixing hole at the lower end of the clamping connecting rod supporting, and the clamping device slides along a fixing hole at the lower end of the clamping connecting rod supporting frame (34), the middle part of the clamping connecting rod (32) is connected with the middle part of the clamping connecting rod supporting frame (34) through a second spring (33), the top end of the clamping connecting rod (32) is fixedly connected with a clamp (39), and the bottom surface of the clamp (39) is coplanar with the bottom surface of the workbench.

5. The semi-automatic drilling machine according to claim 1, characterized in that the drilling mechanism comprises a drilling cam (51), a drilling cam roller (40), an L-shaped connecting rod (41), a third spring (42), a drilling swing rod (43), a large-profile connecting rod (50), a large profile (49), a rack and pinion mechanism (48), a rack positioning rod (44), a power head (46), a cutter (45) and a drilling cam shaft (65), wherein the drilling cam roller (40) is installed at one end of the L-shaped connecting rod (41), the drilling cam roller (40) is in direct contact with the drilling cam (51), the drilling cam shaft (65) is installed at the side surface of the drilling mechanism baffle plate (52) and is in rolling fit connection with the drilling mechanism baffle plate (52), the drilling cam (51) is installed on the drilling cam shaft (65) and is in transmission fit connection with the drilling cam shaft (65), the fixed orifices in the middle of the L-shaped connecting rod (41) are in clearance fit with a rotating shaft on a baffle plate (52) of a drilling mechanism, the other end of the L-shaped connecting rod (41) is connected with a boss on the baffle plate (52) of the drilling mechanism through a third spring (42), one end of a drilling swing rod (43) is hinged with one end of the L-shaped connecting rod (41) connected with the third spring, the other end of the drilling swing rod (43) is hinged with one end of a large-tooth-profile connecting rod (50), the other end of the large-tooth-profile connecting rod (50) is connected with a large tooth profile (49), the fixed orifices in the middle of the large-tooth-profile connecting rod (50) are in clearance fit with the rotating shaft on the baffle plate (52) of the drilling mechanism, the gear-rack mechanism comprises two gears and one rack, the two gears are meshed with each other, one gear is meshed with the large tooth profile, the other gear is meshed with the rack, the two gears are, rack locating lever (44) one end fix the boss of drilling mechanism baffle (52) on, the other end with the fixed orifices clearance fit of rack, just the rack reciprocates along rack locating lever (44), unit head (46) with rack welded fastening, the cutter install in unit head (46) bottom, and be located workstation drilling machining station top.

6. The semi-automatic drilling machine according to claim 1, characterized in that a hopper 6 is arranged on the workbench (20), the hopper is fixed on a baffle plate (52) of a drilling mechanism through hexagon socket head cap bolts, a hole with a diameter larger than that of a cutter is arranged on a drilling station of the workbench (20), the center line of the hole is coincident with that of the cutter, a discharging chute (22) is arranged on one side of the drilling station of the workbench, wherein the discharging chute (22) comprises two baffle plates (24) and a discharging chute bottom plate (23), and the baffle plates (24) are fixedly arranged on two sides of the discharging chute bottom plate (23).

7. A semi-automatic drilling machine according to claim 1, wherein: the motor (1) is fixed on the bottom plate (10) through the hexagon socket head cap screw, and the workbench (20) is fixed on the bottom plate (10) through two support columns (17).

8. The semi-automatic drilling machine of claim 1, wherein: the transmission mechanism comprises a motor (1), a first belt wheel transmission system (2), a second belt wheel transmission system (8), a third belt wheel transmission system (7), a fourth belt wheel transmission system (4), a fifth belt wheel transmission system (3), a gear transmission system and a spindle (11), wherein the gear transmission system comprises a worm gear transmission system (12) and a bevel gear transmission system (9), the motor (1) is in transmission connection with the first worm gear transmission system (12) through the first belt wheel transmission system (2), the spindle (11) is installed on a worm wheel of a second worm gear transmission system (64), the first worm gear transmission system (12) is in transmission connection with the second worm gear transmission system (64), the spindle is in transmission connection with a positioning cam (25) of the positioning mechanism through the second belt wheel transmission system, the cam (25) of the positioning mechanism is in transmission connection with a drilling cam (51) of the drilling mechanism through the third belt wheel transmission system (7), the main shaft (11) is in transmission connection with a clamping cam (35) of the clamping mechanism through a fourth belt wheel transmission system (4), and the main shaft (11) is reversed by a bevel gear transmission system and then is in transmission connection with the feeding mechanism through a fifth belt wheel transmission system.

9. The semi-automatic drilling machine of claim 4, wherein: the clamping connecting rod is of a Z-shaped structure.

Images