Half shaft processing boring equipment

Abstract

The application relates to the boring technical field and particularly relates to a semi-axle machining boring equipment; the equipment comprises a machine tool and a three-jaw chuck with a feeding hole on the machine tool; the three-jaw chuck is driven to rotate by the machine tool; the working surface of the machine tool is horizontally provided with a track; the track is slidably connected with a feeding seat on the left and right sides; the upper surface of the feeding seat is fixedly connected with a clamping seat through a lifting table; the clamping seat is connected with a cutter bar on the left side; the arc-shaped outer wall of the cutter bar is provided with a rod groove at the lower position; the left and right inner walls of the rod groove are connected with a screw rod; the rod groove is movably connected with a plurality of cutter blades; the standard workpiece is used to pre-adjust the cutter blades and lock the adjacent height difference; only the workpiece rotation and the cutter blade radial feeding are needed during boring, the cutter blades do not need to be frequently adjusted, the clamping is convenient, the boring is stable, the multi-step hole machining requirement is met, the efficiency is higher, the high-precision hole diameter difference scene is adapted, the multi-cutter blade synchronous cutting shortens the feeding cycle, and the batch production is adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boring, in particular to a semi-axle machining boring equipment. BACKGROUND

[0002] In the automobile transmission system, the semi-axle sleeve pipe as the core bearing and power transmission component needs to stably support the semi-axle rotation and accurately transmit power, the inner wall needs to realize high-precision cooperation with the bearing, sealing element and other key components, and directly determines the operation stability and service life of the transmission system, so the boring machining of the inner surface is the core process in the production process of the semi-axle sleeve pipe, and strict requirements are put forward for the machining efficiency and precision; at present, the process is generally completed by the traditional lathe machining process in the industry, and there are significant bottlenecks in the machining efficiency and precision control, which is difficult to adapt to the modern mass production demand: when the traditional lathe is machined, the clamping and fixing are first completed from the outer wall of the semi-axle sleeve pipe through the lathe three-jaw chuck or special chuck, since the semi-axle sleeve pipe is mostly long in size, the boring cutter needs to be inserted into the inner hole from one end of the workpiece, and during the machining process, the two key actions of driving a single blade to extrude the inner surface for cutting and driving the blade to make a feeding motion along the axis of the workpiece need to be realized synchronously, the whole machining process completely relies on single blade cutting operation, the cutting coverage is limited, and the axial feeding needs to be accurately synchronized with the cutting action, which leads to a significant extension of the single feeding cycle, and the number of workpieces machined per unit time is difficult to improve.

[0003] At the same time, in order to meet the assembly requirements, the inner hole of the semi-axle sleeve pipe is often designed as a stepped hole structure with different inner diameters, and in the traditional machining mode, the radial extension amount of the blade needs to be frequently adjusted during the boring cutter feeding process for different stepped sections, and every time the machining reaches the position where the hole diameter changes, the axial feeding motion must be paused, the blade extension size is manually calibrated or re-set by equipment parameters, and after the debugging is completed and it is confirmed that it is adapted to the current hole diameter, the feeding and cutting can be resumed, which not only seriously interrupts the machining continuity, but also increases the debugging time cost, and more importantly, every time the adjustment is made, the hole diameter difference of the adjacent stepped holes may be deviated due to human operation error or equipment parameter fluctuation. SUMMARY

[0004] In order to make up for the deficiencies of the prior art, the present application provides a semi-axle machining boring equipment, which pre-adjusts the blade by standard workpiece and locks the adjacent height difference, only needs workpiece rotation and blade radial feeding during boring, does not need to frequently adjust the blade, meets the multi-step hole machining requirement, is higher in efficiency, and is suitable for high-precision hole diameter difference scenes; multi-blade synchronous cutting shortens the feeding cycle and adapts to batch production.

[0005] The technical scheme adopted by the present application to solve its technical problems is: the semi-axle machining boring equipment comprises a machine tool and a three-jaw chuck with a feeding hole on the machine tool; the three-jaw chuck is driven to rotate by the machine tool; the working surface of the machine tool is horizontally provided with a track; the track is slidably connected with a feeding seat on the left and right; the feeding seat is fixedly connected with a clamping seat on the upper surface through a lifting table; the clamping seat is connected with a tool bar on the left; the arc outer wall of the tool bar is provided with a rod groove at the lower position; the rod groove is connected with a screw rod on the left and right inner walls; a plurality of blades are movably connected in the rod groove; the blade slots are formed through the two sides of the blades; the adjacent blades are in contact and distributed along the length direction of the rod groove; the screw rod passes through the blade slots on all the blades; the width of the blade slot is adapted to the cross section of the screw rod, and the height is greater than the cross section of the screw rod; the rod groove is provided with a rotating groove at one end close to the clamping seat; a rotating sleeve is movably connected in the rotating groove; the internal thread on the inner side of the rotating sleeve is threadedly connected with the external thread of the screw rod; the external cross section of the rotating sleeve is greater than the width of the blade slot.

[0006] Preferably, the upper surface of the blade is fixedly connected with a first spring, the upper end of the first spring abuts against the inner bottom wall of the rod groove; the elastic force of the first spring is two kinds, and the first springs with two kinds of elastic force are alternately distributed in the axial direction of the tool bar.

[0007] Preferably, a plurality of transverse grooves are arranged on the left side surface of the blade; a plurality of longitudinal grooves are arranged on the right side surface of the blade; the transverse grooves and the longitudinal grooves are arranged perpendicularly.

[0008] Preferably, the rotating sleeve is provided with an annular groove on the side close to the blade; a rotating ring is rotatably connected in the annular groove.

[0009] Preferably, a first strip groove in communication with the rotating groove is formed through the tool bar in the up-down direction; a first rack is slidably connected in the first strip groove; a first pressing block is fixedly connected to the upper end of the first rack; external teeth are arranged on the outer wall of the rotating sleeve; the external teeth are in meshing transmission with the first rack.

[0010] Preferably, a second strip groove in communication with the rotating groove is formed through the tool bar in the up-down direction; the first strip groove and the second strip groove are symmetrically arranged about the rotating groove; a second rack is slidably connected in the second strip groove; a second pressing block is fixedly connected to the upper end of the second rack; the external teeth are in meshing transmission with the second rack.

[0011] Preferably, the clamping seat is provided with a clamping hole penetrating left and right; the right end of the cutter bar is provided with a flat groove; the right end of the cutter bar can be inserted into the clamping hole; the clamping hole penetrates upward and is threadedly connected with a bolt; the screw rod is composed of a smooth left rod and a right rod with external threads; the right rod is fixedly connected with the right end of the rod groove; the left end of the rod groove is provided with a left hole penetratingly; the left rod is movably connected in the left hole; the right end of the left rod is provided with a left groove; the left end of the right rod is provided with a right block capable of being inserted into the left groove.

[0012] Preferably, the arc-shaped outer wall of the cutter bar is provided with a left locking groove penetrating horizontally; the left locking groove is communicated with the left hole and vertically intersects; the left locking groove is movably connected with a left locking strip; the outer wall of the left rod is provided with a left clamping groove capable of being inserted by the left locking strip; the outer wall of the left locking strip is embedded with a magnet capable of magnetically attracting the left rod.

[0013] Preferably, the top of the blade is fixedly connected with an L-shaped block; the inner wall of the rod groove is provided with a horizontal groove penetrating outwardly horizontally; a horizontal strip is slidably connected in the horizontal groove; the inner wall of the horizontal groove is provided with an auxiliary groove; an auxiliary block is slidably connected in the auxiliary groove; the auxiliary block is connected with the inner wall of the auxiliary groove through a second spring on the side away from the L-shaped block; the auxiliary block is fixedly connected with the horizontal strip; the horizontal strip is provided with a guide surface downwardly inclined on the end close to the L-shaped block.

[0014] Preferably, the front and back sides of the blade are symmetrically provided with cooling grooves; the cooling grooves are long strip-shaped; the front and back inner walls of the rod groove are provided with cooling holes corresponding to the cooling grooves; the cooling holes are communicated with liquid inlet joints.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The present application adjusts the blade by standard workpieces and locks the adjacent height difference, only needs workpiece rotation and blade radial feeding during boring, and does not need frequent adjustment of the blade, meets the multi-step hole machining requirement while maintaining convenient clamping and stable boring, is more efficient, and is suitable for high-precision hole diameter difference scenes; the synchronous cutting of multiple blades shortens the feeding cycle and is suitable for batch production.

[0017] 2. The present application sets transverse grooves and longitudinal grooves on both sides of the blade, avoids that the adjacent two blades are adsorbed to cause activity obstruction, and cooperates with the first spring with different elastic forces to provide differential thrust for the blade, so that the adjacent two blades can independently find the position matched with the inner wall of the standard workpiece, improves the accuracy of blade positioning, and improves the machining precision.

[0018] 3. The present application is by the first rack and the second rack with the sleeve at the same time, so that the operator only need to press the first rack or the second rack back and forth can be achieved to unlock and lock the blade, greatly facilitate the operation of the blade, and more labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application is further illustrated below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a perspective view of the present application;

[0021] Figure 2 is a perspective view of the clamping seat and the knife rod in the present application;

[0022] Figure 3 is a perspective view of the knife rod in the present application;

[0023] Figure 4 is Figure 3 a perspective view from another angle;

[0024] Figure 5 is Figure 4 an enlarged view of A in the present application;

[0025] Figure 6 is Figure 4 an enlarged view of B in the present application;

[0026] Figure 7 is a sectional view of the knife rod in the present application;

[0027] Figure 8 is Figure 7 an enlarged view of C in the present application;

[0028] Figure 9 is Figure 7 a sectional view of D-D in the present application;

[0029] Figure 10 is Figure 7 a sectional view of E-E in the present application;

[0030] Figure 11 is a perspective view of a plurality of blades in the present application;

[0031] Figure 12 is Figure 11 an enlarged view of F in the present application;

[0032] Figure 13 is a perspective view of the screw in the present application;

[0033] Figure 14 is a sectional view of the sleeve in the present application;

[0034] Figure 15 is a perspective view of a single blade in the present application.

[0035] Fig. Machine tool 1, three-jaw chuck 11, feeding hole 12, track 13, feeding seat 2, lifting platform 21, clamping seat 22, clamping hole 23, bolt 24, tool bar 3, left hole 30, rod groove 31, rotating groove 32, first strip groove 33, first rack 34, first pressing block 35, second strip groove 36, second rack 37, second pressing block 38, flat groove 39, left locking groove 391, horizontal groove 392, auxiliary groove 393, auxiliary block 394, second spring 395, cooling hole 396, liquid inlet connector 397, screw rod 4, left rod 41, right rod 42, left square groove 43, right square block 44, left clamping groove 45, blade 5, blade groove 51, first spring 52, transverse groove 53, longitudinal groove 54, annular groove 55, rotating ring 56, L-shaped block 57, cooling groove 58, rotating sleeve 6, outer tooth 61, left locking strip 7, magnet 71, horizontal strip 8, guide surface 81. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0037] As shown in Figures 1 to 15 , the present application includes the following embodiments:

[0038] Embodiment 1: A semi-axle machining boring equipment, comprising a machine tool 1 and a three-jaw chuck 11 with a feeding hole 12 on the machine tool 1; the three-jaw chuck 11 is driven to rotate by the machine tool 1; the working surface of the machine tool 1 is horizontally provided with a track 13; the track 13 is slidably connected with a feeding seat 2 on the left and right; the upper surface of the feeding seat 2 is fixedly connected with a clamping seat 22 through a lifting platform 21; the clamping seat 22 is connected with a tool bar 3 to the left; the arc outer wall of the tool bar 3 is provided with a rod groove 31 at the lower position; the rod groove 31 is connected with a screw rod 4 on the left and right inner walls; a plurality of blade 5 is movably connected with the rod groove 31; the blade groove 51 is provided on both sides of the blade 5; a plurality of blade 5 is adjacent to each other and distributed along the length direction of the rod groove 31; the screw rod 4 passes through the blade groove 51 on all blade 5; the width of the blade groove 51 is adapted to the cross section of the screw rod 4, and the height is greater than the cross section of the screw rod 4; the end of the rod groove 31 close to the clamping seat 22 is provided with a rotating groove 32; the rotating groove 32 is movably connected with a rotating sleeve 6; the internal thread on the inner side of the rotating sleeve 6 is threadedly connected with the external thread of the screw rod 4; the outer cross section of the rotating sleeve 6 is greater than the width of the blade groove 51.

[0039] Before boring with the boring equipment, the standard qualified half shaft (hereinafter referred to as workpiece) is first placed inside the feeding hole 12, then the three-jaw chuck 11 is controlled to clamp the workpiece, then the lifting platform 21 drives the clamping seat 22 to move up or down, the clamping seat 22 drives the tool bar 3 to move up or down, until the center axis of the tool bar 3 coincides with the center axis of the workpiece, then the feeding seat 2 is controlled to move left, the feeding seat 2 moves left during which the lifting platform 21 moves left, the lifting platform 21 moves left during which the clamping seat 22 moves left, the clamping seat 22 moves left during which the tool bar 3 moves left, the tool bar 3 moves left during which the blade 5 inside the tool bar 3 moves left, the length of the rod groove 31 is greater than the axial length of the workpiece, so after the tool bar 3 is inserted into the inside of the workpiece, the rotating sleeve 6 is reversely rotated, the internal threads of the rotating sleeve 6 are threadedly connected with the external threads of the screw rod 4, so the rotating sleeve 6 rotates during which axial movement is generated on the outer wall of the screw rod 4.

[0040] After the rotating sleeve 6 approaches the clamping seat 22, the rotating sleeve 6 is separated from the contact with the rightmost blade 5, achieving unlocking of the blade 5, the opening of the rod groove 31 is vertically downward, so multiple blades 5 will contact the lower position of the inner wall of the workpiece under the action of their own gravity, the blade groove 51 of the blade 5 will generate movement with the screw rod 4, due to the different inner diameters of the workpiece, the tip position of the blade 5 abuts against the inner wall in the standard workpiece, achieving position adjustment of the blade 5, then the rotating sleeve 6 is forwardly rotated, the rotating sleeve 6 moves away from the clamping seat 22 along the axial direction of the screw rod 4 during being forwardly rotated, the rotating sleeve 6 abuts against the right side of the rightmost blade 5, the adjacent blade 5 is in contact, so after the rotating sleeve 6 rotates and extrudes the rightmost blade 5, the positions of all the blades 5 are locked, completing the positioning process of the blade 5, after the positioning of the blade 5, the blade 5 cannot move along the rod groove 31, so that multiple blades 5 are more stable during boring, after completing the positioning of the height difference of the adjacent blade 5, the blade 5 is controlled to be separated from the contact with the inner wall of the workpiece, then the feeding seat 2 is controlled to move right, the feeding seat 2 moves right during which the lifting platform 21 moves right, the lifting platform 21 moves right during which the clamping seat 22 moves right, the clamping seat 22 moves right during which the tool bar 3 and the blade 5 are extracted from the inside of the standard workpiece, then the three-jaw chuck 11 is loosened, the workpiece to be processed is placed into the feeding hole 12 and clamped by the three-jaw chuck 11, then the tool bar 3 is controlled to enter the inside of the workpiece to be processed, after the tool bar 3 completes the axial feeding of the workpiece to be processed, the three-jaw chuck 11 is controlled to rotate, the three-jaw chuck 11 rotates during which the workpiece to be processed rotates, the workpiece to be processed rotates during which relative rotation is generated with the inside blade 5, the lifting platform 21 drives the tool bar 3 to move down, the tool bar 3 moves down during which multiple blades 5 move down, multiple blades 5 move down during which the inner wall of the workpiece to be processed is contacted, multiple blades 5 move radially during which the workpiece to be processed is rapidly bored and formed.

[0041] The existing boring needs axial feeding and radial feeding at the same time, and the boring efficiency is low; the cutting fluid can be used to flush away the debris and cool the blade 5 during the boring process; in addition, for the machining of two adjacent step holes with different inner diameters in the workpiece, the existing machining method is to machine them separately and sequentially, which is difficult to guarantee the difference between the adjacent two step hole diameters in the workpiece, resulting in poor machining precision, while the present application fixes the height difference between the adjacent blades 5, i.e. fixes the difference between the adjacent step holes in the workpiece, so that the precision of the machined workpiece is higher, after completing the radial overall boring, the blade 5 is directly controlled to move away from the inner wall of the workpiece, and the blade rod 3 is pulled out from the inner side of the workpiece, realizing the boring process of a single workpiece, then the three-jaw chuck 11 is loosened, and the boring of the next workpiece is carried out.

[0042] The present application fixes the height difference between the adjacent blades 5 by pre-adjusting the blades 5 of the standard workpiece, and only needs workpiece rotation and blade 5 radial feeding during boring, without frequent adjustment of the blade 5, while maintaining convenient clamping and stable boring, meeting the multi-step hole machining requirement, being more efficient, and being suitable for high-precision hole diameter difference scenarios; the synchronous cutting of multiple blades 5 shortens the feeding cycle and is suitable for batch production.

[0043] In the embodiment, the upper surface of the blade 5 is fixedly connected with a first spring 52, the upper end of the first spring 52 abuts against the inner bottom wall of the rod groove 31, and the elastic force of the first spring 52 is two kinds, and the first springs 52 with two kinds of elastic force are alternately distributed in the axial direction of the blade rod 3.

[0044] In the embodiment, the left side surface of the blade 5 is provided with a plurality of transverse grooves 53, the right side surface of the blade 5 is provided with a plurality of longitudinal grooves 54, and the transverse grooves 53 and the longitudinal grooves 54 are vertically arranged.

[0045] During the reverse rotation of the rotating sleeve 6, the rotating sleeve 6 will approach the clamping seat 22 and be separated from the rightmost blade 5, so as to realize the unlocking of the blade 5, since the longitudinal groove 54 on one of the two adjacent blades 5 is in contact with the transverse groove 53 on the other blade 5, the contact position between the two adjacent blades 5 will not be tightly fitted, and will not form adsorption, so that the gas can enter between the two adjacent blades 5, avoiding the adsorption of the two adjacent blades 5, so that the two adjacent blades 5 can move independently after being unlocked, and do not affect each other, the first spring 52 will transmit the elastic force to the corresponding blade 5 after the unlocking of the blade 5, so that the blade 5 moves away from the groove bottom of the rod groove 31 under the action of gravity and the elastic force of the first spring 52, since the elastic forces of the two adjacent first springs 52 are different, the distances of the blades 5 from the rod groove 31 under the action of the elastic forces of the corresponding first springs 52 are different, and in the case that the two adjacent blades 5 have a slight difference, the two adjacent blades 5 can be staggered and moved independently.

[0046] Then the knife bar 3 controls the knife 5 close to the inner wall of the qualified workpiece, and the position adjustment process of the knife 5 is completed under the condition that all the knives 5 are in contact with the inner wall of the qualified workpiece, then the forward rotation of the rotating sleeve 6 extrudes all the knives 5, so that all the knives 5 are extruded, the transverse groove 53 on the adjacent two knives 5 is in contact with the longitudinal groove 54, the friction is increased to avoid slipping, until all the knives 5 are pressed tightly, the locking of the knife 5 is completed; the transverse groove 53 and the longitudinal groove 54 are arranged on both sides of the knife 5, the adjacent two knives 5 are prevented from being adsorbed to cause activity obstruction, and the first spring 52 with different elastic forces is matched to provide differential thrust for the knife 5, so that the adjacent two knives 5 can independently find the position matched with the inner wall of the standard workpiece, the positioning accuracy of the knife 5 is improved, and the machining precision is improved; if the adjacent two knives 5 are adsorbed into one, it is difficult to be applied to workpieces with different inner diameters and to be in contact with the inner wall of the workpiece, and the embodiment avoids such a situation.

[0047] In the embodiment, the rotating sleeve 6 is provided with the annular groove 55 on the side close to the knife 5; and the rotating ring 56 is rotationally connected in the annular groove 55.

[0048] In the process of rotating the rotating sleeve 6 away from the clamping seat 22, the rotating sleeve 6 drives the rotating ring 56 to approach and contact the knife 5, and the friction between the rotating ring 56 and the knife 5 makes the rotating ring 56 unable to rotate with the rotating sleeve 6, so that the rotating sleeve 6 contacts the knife 5 through the rotating ring 56 in the rotating process, on the one hand, the locking demand of the knife 5 is met, and on the other hand, the resistance of the rotating sleeve 6 is reduced, so that the rotating sleeve 6 rotates more labor-saving.

[0049] In the embodiment, the rotating sleeve 6 is provided with the annular groove 55 on the side close to the knife 5; and the rotating ring 56 is rotationally connected in the annular groove 55.

[0050] In the embodiment, the knife bar 3 is provided with the second strip-shaped groove 36 penetrating up and down and communicating with the rotating groove 32; the first strip-shaped groove 33 and the second strip-shaped groove 36 are symmetrically arranged about the rotating groove 32; the second rack 37 is slidably connected in the second strip-shaped groove 36; the second pressing block 38 is fixedly connected to the upper end of the second rack 37; and the outer gear teeth 61 are in meshing transmission with the second rack 37.

[0051] In the case of unlocking the blade 5, press the first pressing block 35, the first pressing block 35 is pressed and the first rack 34 is driven downward, the first rack 34 is engaged with the external tooth 61 on the outer wall of the rotating sleeve 6, so that the first rack 34 drives the rotating sleeve 6 to rotate during the downward movement, the rotating sleeve 6 moves on the outer wall of the screw 4 during the rotation, the rotating sleeve 6 approaches the clamping seat 22 and is separated from the blade 5, so that the blade 5 is unlocked, after the position adjustment of the blade 5 is completed, pull the first pressing block 35 upward, the first pressing block 35 drives the first rack 34 to move upward during the upward movement, the first rack 34 drives the rotating sleeve 6 to rotate during the upward movement, the rotating sleeve 6 moves away from the clamping seat 22 and contacts the corresponding blade 5, so that the blade 5 is locked under the extrusion of the rotating sleeve 6, compared with the original rotating mode of the rotating sleeve 6, it is more labor-saving and convenient to operate.

[0052] Further, the second slot 36 is provided on the knife bar 3 and communicates with the rotating groove 32, so that the engaging rotating sleeve 6 is driven to rotate during the downward movement of the first rack 34 in the case of unlocking the blade 5, the rotating sleeve 6 drives the second rack 37 to move upward along the second slot 36 during the rotation, the second rack 37 drives the second pressing block 38 to move upward during the upward movement, so as to prepare for the locking of the blade 5, then press the second pressing block 38 downward after the blade 5 is unlocked and the position adjustment is completed, the second pressing block 38 drives the second rack 37 to move downward during the downward movement, the second rack 37 drives the rotating sleeve 6 to rotate during the downward movement, the rotating sleeve 6 drives the first rack 34 to move upward during the rotation, the first rack 34 drives the first pressing block 35 to move upward during the upward movement, so as to prepare for the unlocking of the blade 5, so that the operator only needs to press the first rack 34 or the second rack 37 back and forth to realize the unlocking and locking of the blade 5, which greatly facilitates the operation of the blade 5 and is more labor-saving.

[0053] In embodiment 5, the clamping hole 23 is provided on the left and right of the clamping seat 22; the flat groove 39 is provided on the right upper end of the knife bar 3; the right end of the knife bar 3 can be inserted into the clamping hole 23; the bolt 24 is screwed and connected to the clamping hole 23; the screw 4 is combined by the smooth left rod 41 and the right rod 42 with external threads; the right rod 42 is fixedly connected to the right end of the rod groove 31; the left hole 30 is provided on the left end of the rod groove 31; the left rod 41 is movably connected to the left hole 30; the left rod 41 is provided with the left groove 43 on the right end; the right block 44 can be inserted into the left groove 43 on the left end of the right rod 42.

[0054] In this embodiment, the arc-shaped outer wall of the cutter bar 3 is horizontally provided with a left locking groove 391; the left locking groove 391 is in communication with and vertically intersects with the left hole 30; the left locking groove 391 is movably connected with a left locking strip 7; the outer wall of the left rod 41 is provided with a left clamping groove 45 which can be inserted by the left locking strip 7; the outer wall of the left locking strip 7 is embedded with a magnet 71 which can magnetically attract the left rod 41.

[0055] In the case where the cutter bar 3 needs to be disassembled, the bolt 24 is screwed to make the bolt 24 out of contact with the cutter bar 3, then a new cutter bar 3 is inserted along the clamping hole 23, and the flat groove 39 is controlled to face upward, then the bolt 24 is screwed close to the cutter bar 3, the bolt 24 will abut against the inner wall of the flat groove 39, achieving the locking of the cutter bar 3; in the case where the cutter blade 5 needs to be replaced, the left locking strip 7 needs to be pushed out of the left locking groove 391, the end of the left locking strip 7 is initially adapted to the outer wall of the cutter bar 3, the left locking strip 7 is manually pressed by a thin stick or other components and then moved out of the left locking groove 391, the left locking strip 7 is extracted from the left locking groove 391 and also extracted from the left clamping groove 45, achieving the unlocking of the left rod 41.

[0056] Then the left end of the left rod 41 is controlled to move left along the left hole 30, the right end of the left rod 41 will drive the left slot 43 out of contact with the right block 44, the left rod 41 will be extracted from the blade grooves 51 inside the plurality of cutter blades 5, achieving the unlocking of the cutter blade 5 at the left end of the rod groove 31, so that the cutter blade 5 at the left end of the rod groove 31 can be directly taken out and replaced, and for the cutter blade 5 at the right end of the rod groove 31, it can be taken out from the outer wall of the right rod 42 by left movement, achieving the taking out of the cutter blade 5, and after the new cutter blade 5 is loaded, the left rod 41 is reinserted into the plurality of blade grooves 51 along the left hole 30, the left slot 43 at the right end of the left rod 41 is inserted into the right block 44, the left clamping groove 45 on the left rod 41 is aligned with the left locking groove 391, then the left locking strip 7 is inserted along the left locking groove 391, the left locking strip 7 will pass through the left clamping groove 45, achieving the locking of the left rod 41, the magnet 71 embedded in the outer wall of the left locking strip 7 attracts the left rod 41, so that the left locking strip 7 is not easy to move out of the left locking groove 391, so that the locking of the left rod 41 is more stable.

[0057] In this embodiment, the cutter blade 5 is fixedly connected with an L-shaped block 57; the inner wall of the rod groove 31 is horizontally provided with a horizontal groove 392; the horizontal groove 392 is slidably connected with a horizontal strip 8; the inner wall of the horizontal groove 392 is provided with an auxiliary groove 393; the auxiliary groove 393 is slidably connected with an auxiliary block 394; the second spring 395 is connected between the side of the auxiliary block 394 away from the L-shaped block 57 and the inner wall of the auxiliary groove 393; the auxiliary block 394 is fixedly connected with the horizontal strip 8; the end of the horizontal strip 8 close to the L-shaped block 57 is obliquely provided with a guide surface 81.

[0058] In the case of determining the length of the workpiece, the control rotating sleeve 6 rotates away from the blade 5, first unlocking the blade 5, then pressing the blade 5 close to the bottom of the rod groove 31, the blade 5 will drive the L-shaped block 57 to press the guide surface 81 on one end, so that the horizontal bar 8 close to one end of the L-shaped block 57 is pressed to drive the auxiliary block 394 to slide along the auxiliary groove 393, the auxiliary block 394 will overcome the second spring 395 away from the rod groove 31, until the L-shaped block 57 on one end is above the guide surface 81, the second spring 395 will drive the auxiliary block 394 to reset along the auxiliary groove 393, the auxiliary block 394 will drive the horizontal bar 8 to insert into the inside of the L-shaped block 57, the L-shaped block 57 is a inverted L-shaped structure, which can be locked, to realize the storage of the non-enabled blade 5, so as to avoid the interference of the non-enabled blade 5 with the entering of the tool bar 3 into the inside of the workpiece; and in the case of unlocking the blade 5, the horizontal bar 8 is only needed to be moved out of the inside of the L-shaped block 57 to unlock the blade 5, so that the number of the enabled blades 5 on the tool bar 3 can be adjusted.

[0059] In the embodiment 7, the blade 5 is symmetrically provided with a cooling groove 58 on the front and rear sides; the cooling groove 58 is in a strip shape; the rod groove 31 is provided with a cooling hole 396 corresponding to the cooling groove 58 on the inner walls of the front and rear sides; and the cooling hole 396 is communicated with a liquid inlet connector 397.

[0060] In the case of the blade 5 being completely retracted into the rod groove 31, the blade 5 is in a disabled state, the front and rear outer walls of the blade 5 are in movable sealing contact with the front and rear inner walls of the rod groove 31, and the cooling grooves 58 on the front and rear sides of the blade 5 are completely blocked by the rod groove 31, so that the cooling liquid cannot flow out in the disabled state; and in the case of the blade 5 extending out of the rod groove 31, the cooling grooves 58 on the front and rear sides of the blade 5 are exposed from the rod groove 31, so that the cooling liquid can flow out along the cooling hole 396 and the corresponding cooling groove 58, to realize the boring cooling of the blade 5 in an enabled state; and the cooling hole 396 is connected with a water pump through the liquid inlet connector 397, to realize the continuous supply of the cooling liquid, and the cooling position of the cooling liquid in the embodiment changes according to the enabled position of the blade 5, that is, the blade 5 in the enabled state is cooled, and the blade 5 in the disabled state is not cooled, to avoid the waste of the cooling liquid.

[0061] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings, and the orientation or positional relationship of the present application is not limited thereto. Figure 1The shown orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0062] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A boring machine for machining half-shafts, comprising a machine tool and a three-jaw chuck with a loading hole on the machine tool; the three-jaw chuck is driven to rotate by the machine tool; a track is horizontally arranged on the working surface of the machine tool; a feed seat is slidably connected to the track to the left and right; characterized in that: A clamping seat is fixedly connected to the upper surface of the feed seat via a lifting platform; a tool shank is connected to the clamping seat facing left; a groove is provided on the lower part of the arc-shaped outer wall of the tool shank; screws are connected to the left and right inner walls of the groove; multiple blades are movably connected to the groove; blade slots are provided through both sides of the blades; multiple blades are adjacent and distributed along the length of the groove; the screw passes through the slots on all the blades; the width of the slot is adapted to the cross-section of the screw, and the height is greater than the cross-section of the screw; a rotating groove is provided at one end of the groove near the clamping seat; a rotating sleeve is movably connected in the rotating groove; the internal thread on the inner side of the rotating sleeve is threadedly connected to the external thread of the screw; the outer cross-section of the rotating sleeve is greater than the width of the slot. A first spring is fixedly connected to the upper surface of the blade, and the upper end of the first spring abuts against the bottom wall of the groove. The first spring has two types of elastic force, and the two types of elastic force are alternately distributed along the axial direction of the blade. An annular groove is provided on the side of the rotating sleeve near the blade. A rotating ring is rotatably connected in the annular groove, and the rotating ring is used to lock the blade. The screw is composed of a smooth left rod and a right rod with external threads; the right rod is fixedly connected to the right end of the rod groove; the left end of the rod groove has a left hole; the left rod is movably connected in the left hole; the right end of the left rod has a left square groove; the left end of the right rod has a right square block that can be inserted into the left square groove.

2. The half-shaft machining boring equipment according to claim 1, characterized in that: The left side of the blade is provided with multiple transverse grooves; the right side of the blade is provided with multiple longitudinal grooves; the transverse grooves are arranged perpendicularly to the longitudinal grooves.

3. The half-shaft machining boring equipment according to claim 1, characterized in that: The tool holder has a first strip groove that runs through it and communicates with the rotating groove. A first rack is slidably connected in the first strip groove. A first pressing block is fixedly connected to the upper end of the first rack. The outer wall of the rotating sleeve is provided with external teeth. The external teeth mesh with the first rack for transmission.

4. The half-shaft machining boring equipment according to claim 3, characterized in that: The tool holder has a second strip groove that runs through it vertically and communicates with the rotating groove; the first strip groove and the second strip groove are symmetrically arranged about the rotating groove; a second rack is slidably connected in the second strip groove; a second pressing block is fixedly connected to the upper end of the second rack; the external teeth mesh with the second rack for transmission.

5. The half-shaft machining boring equipment according to claim 1, characterized in that: The clamping base has clamping holes extending through the left and right sides; the tool bar has a flat groove at the upper right end; the right end of the tool bar can be inserted into the clamping hole; the clamping hole is threaded upwards and connected to a bolt.

6. The half-shaft machining boring equipment according to claim 5, characterized in that: The blade holder has a horizontally penetrating arc-shaped outer wall with a left locking groove; the left locking groove is connected to and perpendicularly intersects the left hole; a left locking bar is movably connected inside the left locking groove; the outer wall of the left rod has a left slot into which the left locking bar can be inserted; and a magnet capable of magnetically attracting the left rod is embedded in the outer wall of the left locking bar.

7. The half-shaft machining boring equipment according to claim 1, characterized in that: An L-shaped block is fixedly connected to the top of the blade; a horizontal groove is horizontally provided through the inner wall of the rod groove facing outward; a horizontal bar is slidably connected in the horizontal groove; an auxiliary groove is provided in the inner wall of the horizontal groove; an auxiliary block is slidably connected in the auxiliary groove; the side of the auxiliary block away from the L-shaped block is connected to the inner wall of the auxiliary groove by a second spring; the auxiliary block is fixedly connected to the horizontal bar; a guide surface is provided with the end of the horizontal bar near the L-shaped block inclined downward.

8. The half-shaft machining boring equipment according to claim 7, characterized in that: The blade has symmetrical cooling grooves on its front and rear sides; the cooling grooves are elongated; the inner walls of the rod groove have cooling holes corresponding to the cooling grooves; the cooling holes are connected to the liquid inlet connector.

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