CN111992801A - Automatic vertical broaching machine for feeding and discharging - Google Patents

Abstract

The invention relates to the field of vertical broaching machines, in particular to an automatic feeding and discharging vertical broaching machine which comprises a machine body, wherein a driving mechanism for driving a broaching tool to move is arranged on the machine body, a placing table for placing a workpiece is arranged on the machine body, the placing table can slide along the radial direction of the broaching tool, and a passage channel for the broaching tool to pass through is arranged on the placing table. The scheme realizes that the workpiece can be replaced when the broach resets, thereby improving the processing efficiency.

Description

Automatic vertical broaching machine for feeding and discharging

Technical Field

The invention relates to the field of vertical broaching machines, in particular to an automatic feeding and discharging vertical broaching machine.

Background

The broaching machine is a device for processing round holes, spline holes or key slots on workpieces. In the working process of the existing broaching machine, a workpiece is firstly placed on the broaching machine, then one end of a broach penetrates through a hole in the workpiece, then the end part of the broach is fixed with a driving mechanism, the driving mechanism drives the broach to move relative to the workpiece to machine the workpiece, and finally the broach completely penetrates through the workpiece to complete machining. However, in order to process the next workpiece, the broach needs to be reset again, but the workpiece which is processed at this time can stop the reset of the broach, so at present, the workpiece which is processed is usually taken down firstly, then the broach is reset, and then the next workpiece to be processed is put in. However, the speed of the broach resetting is limited, and a certain time is required for removing the machined workpiece, resetting the broach and placing the next workpiece to be machined, which may result in a reduction in machining efficiency.

Disclosure of Invention

The invention aims to provide an automatic feeding and discharging vertical broaching machine, so that a workpiece can be replaced while a broaching tool is reset, and the machining efficiency is improved.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a go up automatic vertical broaching machine of unloading, includes the lathe bed, is equipped with the actuating mechanism who is used for driving the broach to remove on the lathe bed, is equipped with the platform of placing that is used for placing the work piece on the lathe bed, places the platform and can follow the radial slip of broach, places the bench and is equipped with the passageway that passes through that is used for making the broach pass through.

The principle and the advantages of the scheme are as follows: after the broach in this scheme is accomplished the processing to the work piece and is passed the work piece completely, earlier lateral shifting places the platform, will place the platform and the side direction that the work piece moved to the broach, then steerable broach resets, can take off the work piece that the processing was accomplished simultaneously to place the bench and put into the work piece that the next waited to process, the broach resets promptly and changes the work piece and can go on simultaneously, has effectively improved machining efficiency.

In addition, the existing broaching machine is large in whole, and the broaching machine in the scheme is of a vertical structure and occupies less area.

Preferably, as an improvement, be equipped with the support frame on the lathe bed, place the platform and be located the support frame, be equipped with on the support frame and be used for the pulling to place the first cylinder that the platform removed. Thus, the support frame is used for supporting the placing table. Can stimulate through first cylinder and place the platform and remove, need not artifical pulling and place the platform and remove, easy operation is convenient.

Preferably, as an improvement, a stopper is provided above the placing table, and at least one of the stopper and the placing table is movable to a side where they are close to each other. Because keep off piece and place one of at least one can to the side that draws close each other and move, like this when adopting the broach to add the work piece from upwards moving mode down, can make and keep off and place and be close to each other between the platform, keep off the piece and place the platform and carry out the centre gripping to the work piece jointly, the work piece lies in like this and places the bench more stable, has avoided when not keeping off the piece broach upwards moving to the work piece processing often upwards pushed the work piece from placing the bench.

Preferably, as a refinement, at least one of the support or the stop is screwed with a vertical spindle. Therefore, the relative movement between the support frame and the stopper can be realized by rotating the screw rod.

Preferably, as a modification, the bed includes columns, and the number of the columns is at least three. The existing vertical broaching machine is generally a double-column machine, and in the scheme, the number of the columns is at least three, so that the vertical broaching machine is more stable, and the machining precision of equipment is higher.

Preferably, as an improvement, the lead screw includes smooth section and screw thread section, and the axial coaxial is equipped with the chamber that holds that is used for holding the smooth section of lead screw on the stand, and smooth section rotates to be connected in the chamber that holds of stand. From this, the smooth section of lead screw is arranged in the chamber that holds of stand, and compact structure has reduced the space occupation of stand and lead screw.

Preferably, as an improvement, actuating mechanism is including being located the first actuating mechanism and the second actuating mechanism of placing the upper and lower both sides respectively, is connected with the first broach coupling assembling that is used for dismantling the connection with the broach on the first actuating mechanism, is connected with the second broach coupling assembling that is used for dismantling the connection with the broach on the second actuating mechanism.

The first driving mechanism and the second driving mechanism are respectively positioned at two sides of the placing table, and both the first driving mechanism and the second driving mechanism can drive the broach to vertically move. The first broach connecting assembly and the second broach connecting assembly can be detachably connected with the broach, so that when the broach is connected with the first broach connecting assembly, the first driving mechanism can drive the broach to move, and when the broach is connected with the second broach connecting assembly, the second driving mechanism can drive the broach to move.

In the prior art, the existing vertical broaching machine is only provided with one driving mechanism for driving the broaching tool to move, the driving mechanism is positioned below the placing table, during machining, a workpiece is placed on the placing table, the bottom end of the broaching tool penetrates through a hole of the workpiece and a through channel on the placing table from the upper part of the workpiece, the bottom end of the broaching tool is connected with the driving mechanism, the driving mechanism pulls the broaching tool to move downwards, and the broaching tool processes the inner wall of the hole in the workpiece. When the top end of the broach moves downwards to the workpiece (at the moment, the top end of the broach still passes through the placing table), the machined workpiece is manually taken down from the placing table. Then the driving mechanism drives the broach to move upwards, the top end of the broach is gradually far away from the placing table, the bottom end of the broach is gradually close to the placing table, after the bottom end of the broach moves to the position of the placing table, the driving mechanism stops driving the broach to move upwards, at the moment, the broach is manually pulled out from the driving mechanism, then a new workpiece is placed on the placing table, and the bottom end of the broach penetrates through the hole of the workpiece and the hole on the placing table again to be fixed on the driving mechanism. The driving mechanism pulls the broach downwards to move, and therefore a new workpiece is machined. And the like in sequence to finish the processing of a plurality of workpieces.

Therefore, in the prior art, when each workpiece is machined, the broach needs to be pulled out from the driving mechanism manually to separate the broach from the driving mechanism, and after a new workpiece is placed after the broach is pulled out, the broach is connected to the driving mechanism, so that the working intensity of workers is high, the operation is complex, and the labor cost is high.

According to the scheme, when a workpiece is machined, the broach is fixed on the second driving mechanism through the second broach connecting assembly, the broach is not fixed on the first driving mechanism, then the second driving mechanism drives the broach to penetrate through a hole in the workpiece to machine the workpiece, after the broach moves upwards for a certain distance under the driving of the second driving mechanism, the top end of the broach moves to the first broach connecting assembly, the top end of the broach is connected with the first broach connecting assembly on the first driving mechanism above the workpiece, the top end of the broach is clamped through the first broach connecting assembly, the second broach connecting assembly on the second driving mechanism releases the broach, the first driving mechanism drives the broach to continuously move upwards, so that the broach is separated from the second driving mechanism, the broach can be moved out of the workpiece, and the broach is separated from the workpiece.

Or, when a workpiece is machined, the broach is fixed on the first driving mechanism through the first broach connecting assembly, the broach is not fixed on the second driving mechanism, then the first driving mechanism drives the broach to penetrate through a hole in the workpiece to machine the workpiece, after the broach moves downwards for a certain distance under the driving of the first driving mechanism, the bottom end of the broach moves to the second broach connecting assembly, the bottom end of the broach is connected with the second broach connecting assembly on the second driving mechanism below the workpiece, the bottom end of the broach is clamped through the second broach connecting assembly, the broach is loosened by the first broach connecting assembly on the first driving mechanism, the broach is driven by the second driving mechanism to continuously move downwards, so that the broach is separated from the first driving mechanism, the broach can be moved out of the workpiece, and the broach is separated from the workpiece.

From this, broach adds man-hour in this scheme, no matter adopt the working method of broach from up-moving, still the working method of broach from up-down moving, first broach coupling assembling and second broach coupling assembling are connected with the broach alone respectively, thereby make and need not the manual work and take down the broach from first actuating mechanism or second actuating mechanism, compare prior art, the broach need not every work piece of processing of workman and all need take down, the problem of every work piece of processing of workman all need take down the broach has been solved, workman's manipulation strength has been reduced, especially the broach that the volume is great, the body face is more obvious.

Preferably, as an improvement, first broach coupling assembling or second broach coupling assembling include set casing and a plurality of chucking piece, are equipped with the through-hole that is used for making the broach pass on the set casing, and chucking piece sliding connection is on the set casing, and the one end that chucking piece is close to the through-hole is for the chucking end that is used for chucking broach. The through hole on the fixing shell is used for enabling the broach to pass through, so that the broach can enter the fixing shell through the through hole. Because chucking piece sliding connection is on the set casing, consequently slide through the chucking piece for the chucking piece is to being close to the through-hole direction and removing, and the chucking of a plurality of chucking pieces is held and can be with the broach chucking, has realized the connection to the broach. When the broach is loosened, the clamping block moves towards the direction away from the broach, the clamping block becomes loose, the clamping block does not clamp the broach any more, and the broach can be taken out of the fixed shell at the moment. Because the chucking piece has a plurality ofly, through a plurality of chucking pieces with the broach chucking for the broach is located first broach coupling assembling or more stable on the second broach coupling assembling.

Preferably, as an improvement, the fixed shell is rotatably connected with a rotating ring, the inner wall of the rotating ring is provided with a plurality of pushing parts, and the distance from one end of each pushing part to the center of the rotating ring is smaller than the distance from the other end of each pushing part to the center of the rotating ring; one end of the clamping block, which is far away from the through hole, is used for abutting against the inner wall of the pushing part. Through making the rotating ring rotate, the tip that promotion portion on the rotating ring inner wall is nearer from the rotating ring center removes to being close to chucking piece direction, makes the inner wall of promotion portion and the tip of chucking piece offset like this, and the inner wall of promotion portion promotes the chucking piece and slides along the radial direction of rotating ring on the set casing, and the chucking piece slides to the central point position that is close to the rotating ring, and the chucking end of chucking piece offsets with the lateral wall of broach to with the broach chucking. When needs loosen the broach, the reverse is to the swivel becket rotation, and the tip that promotion portion on the swivel becket inner wall is nearer apart from the swivel becket center removes to keeping away from chucking piece direction gradually, and the inner wall of promotion portion no longer supports the chucking piece tightly, and the chucking piece becomes not hard up, and the chucking piece no longer is to the broach chucking, can take out the broach from the set casing this moment.

Preferably, as an improvement, the top of the placing table is provided with a clamping groove aligned with the protruding part on the workpiece. The existing workpiece is mostly in an irregular shape, for example, a cross-shaped workpiece is provided with a convex protruding part, so that the workpiece can be limited after the protruding parts on the clamping groove and the workpiece are aligned, the workpiece is prevented from transversely deviating, and the fixing effect on the workpiece is improved.

Drawings

Fig. 1 is a perspective view of an automatic vertical broaching machine for feeding and discharging.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is a perspective view of a first broach connection assembly.

Fig. 4 is an exploded view of a first broach connection assembly.

Fig. 5 is a plan view of the swivel ring in embodiment 1.

Fig. 6 is a perspective view of the upper mold of the baffle plate.

Fig. 7 is a plan view of the swivel ring in embodiment 2.

Fig. 8 is an exploded view of the driving plate in embodiment 3.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a hydraulic cylinder 1, a hydraulic rod 2, a first broach connecting assembly 3, broaches 4, a workpiece 5, a placing table 6, a second broach connecting assembly 7, an electric cylinder 8, a driving plate 9, a driving frame 10, a second cylinder 13, a cylinder rod 14, a pushing block 15, a driving block 16, a bolt 17, a rotating ring 18, a fixing cover 19, a clamping block 20, an elastic piece 21, a fixing portion 22, a fixing block 23, a fixing ring 24, a fixing seat 25, a dust ring 26, a fixing sleeve 27, an oilless bearing 28, a sleeve 29, a pushing portion 30, an upright column 31, a baffle 32, a lead screw 33, a cooling liquid box 34 and an upper die 51.

Example 1

Substantially as shown in figures 1 to 5 of the accompanying drawings: the utility model provides a go up automatic vertical broaching machine of unloading, includes vertical lathe bed, and the lathe bed in this embodiment includes a plurality of stands 31, and the specific quantity of stand 31 is four in this embodiment, and four stands 31 are the rectangle and distribute, also means the lathe bed is four-column structure. A coolant tank 34 is fixed to the bottom of the bed by screws. The coolant tank 34 contains coolant, and the coolant is supplied to the workpiece 5 to be machined through the coolant tank 34 to cool and clean the workpiece 5 to be machined.

Referring to fig. 2, the bed body is provided with a support frame, which in this embodiment is a support plate fixed on four columns 31. Be equipped with the platform 6 of placing work piece 5 on the support frame and be used for the drive to place the first cylinder of platform 6 lateral shifting, it is concrete, place platform 6 and pass through guide rail sliding connection on the support frame, first cylinder passes through the fix with screw on the support frame, and the actuating lever of first cylinder passes through the fix with screw on the support frame, can drive through the flexible of first cylinder like this and place platform 6 and slide on the support frame. The supporting frame is provided with a broach hole, and the placing table 6 is provided with a passage for the broach to pass through. A lower die for placing the workpiece 5 is welded on the placing table 6. The lower die is provided with a V-shaped clamping groove matched with the workpiece 5, so that the workpiece 5 can be stably positioned on the lower die.

Be equipped with the actuating mechanism (actuating mechanism can be the cylinder, pneumatic cylinder 1 or electric cylinder 8 etc.) that is used for driving broach 4 vertical migration on the lathe bed, broach 4 in this scheme like this moves down and accomplishes the processing to work piece 5 and pass work piece 5 completely after, start first cylinder earlier, first cylinder drives places platform 6 lateral shifting on the support frame, will place platform 6 and work piece 5 and move to the side direction of broach 4 (place platform 6 in this embodiment and stretch out from the lathe bed), then control broach 4 rebound and reset, can take off the work piece 5 that the processing was accomplished from the bed die simultaneously, and put into the work piece 5 that the processing was waited to be processed next on the bed die of placing platform 6, broach 4 resets and changes work piece 5 and can go on simultaneously, machining efficiency has effectively been improved.

Specifically, actuating mechanism in this embodiment is including being located the first actuating mechanism and the second actuating mechanism of placing the upper and lower both sides of platform 6 respectively, and first actuating mechanism is vertical pneumatic cylinder 1, and second actuating mechanism is servo drive system (this embodiment is electric jar 8), is connected with on the first actuating mechanism to be used for dismantling the first broach coupling assembling 3 of being connected with broach 4, is connected with on the second actuating mechanism to be used for dismantling the second broach coupling assembling 7 of being connected with broach 4. A first driving member (in this embodiment, the first driving member is a driving plate 9) is fixedly connected to the hydraulic rod 2 of the hydraulic cylinder 1 through a screw, a second driving member (in this embodiment, the second driving member is a driving frame 10) is fixedly connected to the electric cylinder 8 through a screw, and the first broach connecting assembly 3 and the second broach connecting assembly 7 are respectively located on the driving plate 9 and the driving frame 10 in a screw fixing manner. The driving plate 9 is slidably connected to the upright column 31, and specifically, the driving plate 9 is provided with a sliding hole for the upright column 31 to pass through, so that the driving plate 9 is vertically slidably connected to the upright column 31. The first broach coupling assembly 3 and the second broach coupling assembly 7 in this embodiment have the same structure, and the structure and principle of the first broach coupling assembly 3 will be described in detail below by taking the first broach coupling assembly 3 as an example.

As shown in fig. 3-5: the first broach attachment assembly includes a rotating ring 18, a stationary housing, and a plurality of clamping blocks 20. As shown in fig. 4, the fixing housing in this embodiment sequentially includes a fixing base 25, a fixing block 23, a fixing ring 24, and a fixing cover 19 from bottom to top. The shape of fixing base 25 in this embodiment is circular, and the quantity of fixed block 23 is a plurality of, and the border of fixed block 23 in this embodiment is the arc, and a plurality of fixed blocks 23 are evenly distributed on fixing base 25 along the circumferencial direction in proper order around the centre of a circle of fixing base 25, and fixed block 23 passes through the fix with screw on fixing base 25, and fixed block 23 also can set up with fixing base 25 integrated into one piece. Adjacent fixing blocks 23 have a gap therebetween to form a sliding groove disposed in a radial direction of the fixing base 25. The rotating ring 18 is sleeved on the outer side of the fixed block 23, and the fixed cover 19 and the fixed ring 24 are coaxially fixed on the fixed block 23 through screws. When the fixing ring 24 is fixed on the fixing block 23, the fixing ring 24 abuts against the top of the rotating ring 18, so that the rotating ring 18 can be prevented from being separated from the fixing seat 25.

Through holes for the broach 4 to pass through are formed in the fixing base 25 and the fixing cover 19, and as shown in fig. 5, a plurality of pushing portions 30 are formed on the inner wall of the rotating ring 18 in this embodiment, and the pushing portions 30 in this embodiment are arc-shaped grooves. The distance from one end of the push portion 30 to the center of the rotating ring 18 is smaller than the distance from the other end of the push portion 30 to the center of the rotating ring 18; the number of the pushing portions 30, the number of the clamping blocks 20, and the number of the fixing blocks 23 in this embodiment are all three, but may be set to other numbers according to actual situations. The chucking blocks 20 are positioned in the sliding grooves between the adjacent fixing blocks 23. One end of the clamping block 20 close to the rotating ring 18 is used for abutting against the inner wall of the pushing part 30, and the other end of the clamping block 20 is used for clamping the clamping end of the broach 4.

The clamping block 20 is provided with a receiving hole, the fixing seat 25 is fixedly connected with or welded with a fixing portion 22 penetrating through the receiving hole through a screw, the fixing portion 22 in the embodiment is a fixing plate, the fixing portion 22 is located at one end of the receiving hole far away from the rotating ring 18, an elastic member 21 is arranged in the receiving hole, and two ends of the elastic member 21 are respectively welded on the inner wall of one end of the receiving hole close to the rotating ring 18 and the fixing portion 22. The elastic member 21 in this embodiment is a compression spring. One end of the clamping block 20, which is far away from the rotating ring 18, is provided with a clamping groove matched with the circumferential side surface of the broach 4, so that the clamping block 20 can clamp the circumferential side surface of the broach 4.

As shown in fig. 3, a second cylinder 13 for driving the rotation ring 18 to rotate is fixed to the bottom surface of the driving plate 9 by screws. The outer side wall of the rotating ring 18 is fixedly connected with or welded with a driving block 16 through a screw, and a cylinder rod 14 of the second cylinder 13 is fixedly connected with a pushing block 15 movably connected with the driving block 16. The specific movable connection mode is as follows: a strip-shaped hole is formed in the driving block 16, a bolt 17 inserted into the strip-shaped hole is connected between the pushing block 15 and the driving block 16, and the bolt 17 can slide along the strip-shaped hole. This enables the second cylinder 13 to expand and contract, thereby driving the rotary ring 18 to rotate.

The specific implementation process is as follows: the tip of the broach 4 is inserted into the fixing case of the first broach attachment assembly 3 through the through-hole of the fixing case. After broach 4 entered into the set casing, drive second cylinder 13, cylinder rod 14 drives and promotes piece 15 and remove, it drives actuating block 16 and removes to promote piece 15, thereby it rotates to drive swivel 18, the tip that promotion portion 30 on the swivel 18 inner wall is nearer apart from swivel 18 center is to being close to chucking piece 20 direction and removing, make the inner wall of promotion portion 30 and the tip of chucking piece 20 offset like this, the inner wall of promotion portion 30 promotes chucking piece 20 and slides along the radial direction of swivel 18 on the set casing, chucking piece 20 slides to the central point that is close to swivel 18, the chucking end of chucking piece 20 offsets with the lateral wall of broach 4, thereby with broach 4 chucking, broach 4 and corresponding actuating mechanism's fixed have been realized. Meanwhile, when the clamping block 20 moves toward the direction of the broach 4, the clamping block 20 presses the elastic member 21, so that the elastic member 21 is compressed and stores power.

The workpiece 5 is placed on a lower die of the placing table 6, the first air cylinder is driven to drive the placing table 6 to slide on the supporting frame, the placing table 6 drives the workpiece 5 to move towards the inside of the lathe bed, and the first air cylinder stops driving the placing table 6 to move when a passage on the placing table 6 is opposite to a broaching hole on the supporting frame.

The hydraulic cylinder 1 is started, the hydraulic rod 2 drives the broach 4 to move downwards, the bottom end of the broach 4 penetrates through a hole of the workpiece 5, a broach hole of the placing table 6, the broach hole passes through the channel and the supporting frame, and the broach 4 moves downwards to process the workpiece 5. As the broaching tool 4 is moved downward, the bottom of the broaching tool 4 is inserted into the through hole of the stationary case of the second broaching tool coupling assembly 7. At this time, the second broach joint assembly 7 clamps the broach 4 in the same principle as the first broach joint assembly 3 is implemented, so that the broach 4 is fixed to the second broach joint assembly 7. Simultaneously first broach coupling assembling 3 unclamps broach 4, and the mode of unclamping is: drive through second cylinder 13 and promote 15 reverse movement of piece, it drives 16 reverse movement of drive block to promote piece 15, drive block 16 drives swivel becket 18 reverse rotation, the tip that promotion portion 30 on the swivel becket 18 inner wall is nearer apart from swivel becket 18 center is gradually to keeping away from chucking piece 20 direction and removing, the inner wall of promotion portion 30 no longer supports chucking piece 20 tightly, chucking piece 20 becomes not hard up, chucking piece 20 is under the effect of pressure spring and keep away from broach 4, chucking piece 20 is no longer to broach 4 chucking, can take out broach 4 from the set casing of first broach coupling assembling 3 this moment.

Then, the second driving mechanism drives the second broach connecting component 7 to move downwards, and the broach 4 is separated from the first broach connecting component 3, so that the broach 4 continues to move downwards to machine the workpiece 5. When the top end of the broach 4 moves below the placing table 6, the workpiece 5 is finished, the first cylinder drives the placing table 6 to slide out of the bed, the workpiece 5 is taken off from the placing table 6, and a new workpiece is replaced.

Meanwhile, the second driving mechanism drives the broach 4 to move upwards and reset, after the broach 4 moves upwards for a certain distance, the top end of the broach 4 is connected with the first broach connecting assembly 3 on the first driving mechanism, the top end of the broach 4 is clamped through the first broach connecting assembly 3, the second broach connecting assembly 7 on the second driving mechanism is enabled to loosen the broach 4 according to the same mode that the workpiece is loosened by the first broach connecting assembly 3, the broach 4 is driven by the first driving mechanism to continuously move upwards, the bottom end of the broach is separated from the second broach connecting assembly 7, so that the bottom end of the broach moves to the upper side of the placing table 6, the placing table 6 is driven by the first cylinder to move into the lathe bed at the moment, and the operation is repeated to process the next workpiece.

Of course, the workpiece 5 is machined by the broach 4 in such a manner that the broach 4 moves from top to bottom. In this embodiment, the workpiece 5 may be machined by moving the broach 4 from bottom to top. That is, before a workpiece 5 is machined, the bottom end of the broach 4 is connected with the second broach connecting assembly 7, the broach 4 is fixed on the second driving mechanism through the second broach connecting assembly 7, the broach 4 is not fixed on the first driving mechanism, then the second driving mechanism drives the broach 4 to penetrate through a hole in the workpiece 5 to machine the workpiece 5, after the broach 4 moves upwards for a certain distance, the top end of the broach 4 is connected with the first broach connecting assembly 3 on the first driving mechanism above the workpiece 5, the top end of the broach 4 is clamped through the first broach connecting assembly 3, the second broach connecting assembly 7 on the second driving mechanism releases the broach 4, and the first driving mechanism drives the broach 4 to move upwards continuously, so that the broach 4 can penetrate through the workpiece 5 completely, and the workpiece machining is finished. After the workpiece 5 is machined, the placing table 6 is moved out of the lathe bed, the workpiece 5 is replaced, the broaching tool 4 is driven by the first driving mechanism to move downwards, the bottom end of the broaching tool 4 moves to the second broaching tool connecting assembly 7, the second broaching tool connecting assembly 7 clamps the broaching tool 4, the broaching tool 4 is loosened through the first broaching tool connecting assembly 3, the broaching tool 4 moves downwards under the driving of the second driving mechanism, the top end of the broaching tool 4 is separated from the first driving mechanism, and the broaching tool 4 resets downwards. After the broach 4 is reset, the placing table 6 drives the workpiece 5 to move into the lathe bed so as to process the next workpiece 5.

It is easy to understand that, in a manner that the broach 4 moves from bottom to top to process the workpiece 5, the workpiece 5 on the placing table 6 is easily pushed upwards by the broach 4, for this reason, a stopper is arranged above the placing table 6 in the present embodiment, the stopper in the present embodiment is a baffle 32, an upper die 51 as shown in fig. 6 for clamping the workpiece 5 is welded at the bottom of the baffle 32, and a V-shaped slot is also arranged at the bottom of the upper die 51. The baffle 32 is provided with a broach hole, the baffle 32 or the placing table 6 can move to one side close to each other, the baffle 32 can move vertically downwards, or the placing table 6 can move vertically upwards, or both the placing table 6 and the baffle 32 can move vertically in opposite directions. The platform 6 of placing that adopts in this embodiment can vertical migration, and is concrete, combine fig. 2 to show, stand 31 is the tubulose, is equipped with the chamber that holds that the axial set up on the stand 31, and lead screw 33 includes screw thread section and smooth section, and lead screw 33's smooth section passes through the bearing and rotates the connection on stand 31, and support frame threaded connection is equipped with on the lathe bed and is used for driving lead screw 33 pivoted motor on the lead screw 33. Like this when adopting broach 4 to add man-hour to work piece 5 from the mode of upwards moving down, the starter motor, the motor makes lead screw 33 rotate, lead screw 33 and support frame constitute the lead screw pair, lead screw 33 rotates and drives the support frame and upwards move, the support frame is close to and keeps off the piece, it carries out the centre gripping to work piece 5 jointly to keep off last mould 51 on the piece and place the bed die on the platform 6, work piece 5 is located and places the platform 6 more stably like this, broach 4 has been avoided when not keeping off the piece upwards moving adds man-hour to work piece 5, broach 4 releases work piece 5 from placing platform 6.

Example 2

It will be readily appreciated that the pushing portion on the rotating ring could also be an arcuate block projecting from the inner wall of the rotating ring 18 as shown in figure 7.

Example 3

As shown in fig. 8, the driving plate 9 in this embodiment is provided with sliding portions which are in sliding fit with the broaching machine, the sliding portions in this embodiment include sliding holes which are located at four corners of the driving plate 9, and the vertical sliding of the driving plate 9 is realized by the cooperation of the sliding holes and the vertical columns on the vertical broaching machine. The drive plate 9 is provided with an oilless bearing 28, a sleeve 29 and a fixed sleeve 27 which are coaxially connected with the sliding hole, the sleeve 29 is fixed on the lower surface of the drive plate 9 through screws, the fixed sleeve 27 is fixed on the upper surface and the lower surface of the drive plate 9 through screws, and the oilless bearing 28 is positioned in the sliding hole and the fixed sleeve 27. Thus, the drive plate 9 can slide more smoothly on the column of the vertical broaching machine by the oilless bearing 28.

In addition, the fixed cover 27 is equipped with dust ring 26 on keeping away from one end of drive plate 9, and dust ring 26 in this embodiment is frameless dust ring 26, through setting up dust ring 26, can play dirt-proof effect, avoids external dust to enter into fixed cover 27 in.

Example 4

It will be readily appreciated that rotation of the rotating ring 18 may also be driven by other means, such as by engagement of the outer side wall of the rotating ring 18 with a gear, by which rotation of the rotating ring 18 can be driven.

Example 5

It will be readily appreciated that other configurations of clamping mechanisms, such as a cam chuck, are possible for the first broach assembly 3 and second broach assembly 4 assembly attachment assemblies.

It is to be understood that the connection method described in the above embodiments is not exclusive, and for example, for the connection method by welding, the connection method by bolts and screws, and other assembly connection methods commonly used in the mechanical field may be adopted according to actual situations.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The utility model provides an automatic vertical broaching machine of last unloading, includes the lathe bed, is equipped with the actuating mechanism who is used for driving the broach removal on the lathe bed, is equipped with the platform of placing that is used for placing the work piece on the lathe bed, its characterized in that: the placing table can slide along the radial direction of the broach, and a passage for the broach to pass through is arranged on the placing table.

2. The automatic vertical broaching machine for feeding and discharging as claimed in claim 1, wherein: the lathe bed is provided with a support frame, the placing table is positioned on the support frame, and the support frame is provided with a first cylinder for pulling the placing table to move.

3. The automatic vertical broaching machine for feeding and discharging as claimed in claim 1, wherein: a blocking piece is arranged above the placing table, and at least one of the blocking piece and the placing table can move towards one side close to each other.

4. The automatic vertical broaching machine for feeding and discharging as claimed in claim 3, wherein: at least one of the supporting frame or the blocking piece is in threaded connection with a vertical lead screw.

5. The automatic vertical broaching machine for feeding and discharging as claimed in claim 4, wherein: the lathe bed includes the stand, and the quantity of stand is three at least.

6. The automatic vertical broaching machine for feeding and discharging as claimed in claim 5, wherein: the lead screw comprises a smooth section and a thread section, an accommodating cavity used for accommodating the smooth section of the lead screw is axially and coaxially arranged on the stand column, and the smooth section is rotatably connected in the accommodating cavity of the stand column.

7. The automatic vertical broaching machine for feeding and discharging as claimed in claim 1, wherein: the driving mechanism comprises a first driving mechanism and a second driving mechanism which are respectively positioned at the upper side and the lower side of the placing table, the first driving mechanism is connected with a first broach connecting component which is used for being detachably connected with a broach, and the second driving mechanism is connected with a second broach connecting component which is used for being detachably connected with the broach.

8. The automatic vertical broaching machine for feeding and discharging as claimed in claim 7, wherein: first broach coupling assembling or second broach coupling assembling are equipped with the through-hole that is used for making the broach to pass including set casing and a plurality of chucking piece on the set casing, chucking piece sliding connection is on the set casing, and the chucking end of one end that the chucking piece is close to the through-hole is for being used for the chucking broach.

9. The automatic vertical broaching machine for feeding and discharging as claimed in claim 8, wherein: the fixed shell is rotatably connected with a rotating ring, the inner wall of the rotating ring is provided with a plurality of pushing parts, and the distance from one end of each pushing part to the center of the rotating ring is smaller than the distance from the other end of each pushing part to the center of the rotating ring; and one end of the clamping block, which is far away from the through hole, is used for abutting against the inner wall of the pushing part.

10. The automatic vertical broaching machine for feeding and discharging as claimed in any one of claims 1 to 9, wherein: the top of the placing table is provided with a clamping groove aligned with the protruding part on the workpiece.

Images