A water pump housing machining lathe

Abstract

The application discloses a lathe for water pump shell machining, and belongs to the technical field of special lathes, which comprises a supporting mechanism for supporting the water pump shell, a machining mechanism and a driving mechanism arranged on the supporting mechanism and used for driving the water pump shell to rotate and performing turning machining on the water pump shell; the supporting mechanism is arranged to automatically adjust the position of the counterweight block according to the foot position of the water pump shell, so that the overall center of gravity of the outer sleeve and the water pump shell is closer to the rotation center, vibration during high-speed rotation is effectively reduced, and the turning precision is improved; the machining mechanism is arranged in a structure that adopts bidirectional threaded columns to drive the inner support block, is combined with a supporting slope surface and a cone, and enables the inner support block to uniformly apply support force to the pump body from inside to outside, so that the size precision and roundness after machining are ensured; the application realizes automatic clamping, rotation and turning of the water pump shell through linkage control of the docking motor, the rotating motor and the turning motor, and has high automation degree and good continuity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of special lathe, in particular to a lathe for machining water pump housing. BACKGROUND

[0002] As a key component of fluid conveying system, the machining precision of water pump housing directly affects the sealing performance and working efficiency of the water pump. The traditional water pump housing machining usually adopts general lathe for turning, but due to the complex structure of the water pump housing, especially with irregular foot or, the pump body is easy to vibrate due to the shift of the center of gravity when rotating at high speed, which leads to the increase of the roughness of the machined surface and even the size deviation. In addition, the traditional clamping method is difficult to adapt to the rapid positioning and fixing of water pump housings of different specifications, and is easy to deform due to uneven clamping force, affecting the quality of finished products. In the prior art, some special lathes use multi-axis synchronous driving or hydraulic clamping mechanism to improve the machining stability, but there are still the following shortcomings: due to the existence of the foot, the dynamic imbalance problem of the water pump housing is prominent when rotating, the existing equipment lacks real-time counterweight adjustment function, and it is difficult to effectively suppress vibration; the traditional three-jaw chuck or customized clamp needs to be adjusted manually and cannot adapt to the rapid switching of the housing in batch production; the feeding and discharging and the processing process rely on manual intervention, and it is difficult to realize continuous operation. Therefore, there is an urgent need for a water pump housing special lathe with dynamic counterweight adjustment, self-adaptive inner support clamping and automatic collaborative control to solve the above technical problems. SUMMARY

[0003] In view of the above technical problems, the technical scheme adopted by the present application is as follows: a lathe for machining water pump housing, comprising a support mechanism for supporting the water pump housing, the support mechanism comprising a frame body, a machining mechanism for driving the water pump housing to rotate and turning the water pump housing, and a driving mechanism;

[0004] The support mechanism comprises an inner long shaft rotatably installed on the frame body, an end gear and a lower intermittent gear are fixedly installed on the inner long shaft, an outer rotating shaft is rotatably installed outside the inner long shaft, a left rotating gear, a right rotating gear and an input gear are fixedly installed on the outer rotating shaft, and a rotating butt joint gear is rotatably installed on the frame body;

[0005] The driving mechanism comprises a butt joint motor, an output wheel and a half-tooth gear are fixedly installed on the motor shaft of the butt joint motor, and the half-tooth gear is engaged with the lower intermittent gear.

[0006] Further, the support mechanism further comprises a sliding seat slidingly installed on the frame body, the inner long shaft penetrates through the sliding seat without contacting the sliding seat, two bidirectional screws are rotatably installed on the frame body, a bidirectional external thread is arranged on the bidirectional screw, a screw gear is fixedly installed on the bidirectional screw, a vertical transmission belt is wound outside the end gear and the two screw gears, two inner convex balls are fixedly installed in the sliding seat, and the inner convex balls slide in the bidirectional external thread of the bidirectional screw.

[0007] Further, a transmission gear is rotatably installed on the frame body, an outer rotating column is rotatably installed on the sliding seat, an outer sleeve is fixedly installed on the outer rotating column, a rotating column gear is fixedly installed on the outer rotating column, the rotating column gear is engaged with the transmission gear, the transmission gear is externally wound with a rotating transmission belt, and a plurality of rolling balls are rotatably installed on the frame body.

[0008] Further, a counterweight is slidably installed in the outer sleeve, a side rotating rod is rotatably installed on the counterweight, a pushing plate is rotatably installed on the side rotating rod, the pushing plate is slidably installed with the outer sleeve, and a pushing plate spring is arranged between the pushing plate and the outer sleeve.

[0009] In use, the water pump housing is placed on the lifting seat, the motor drive output wheel and the half-tooth gear are connected, the half-tooth gear is engaged with the lower intermittent gear, the half-tooth gear is not engaged with the upper intermittent gear, the lower intermittent gear drives the inner long shaft and the end gear to rotate, the end gear drives the screw gear and the bidirectional screw rod to rotate through the vertical transmission belt, the bidirectional screw rod drives the sliding seat to slide inward through the inner convex ball, so that the outer sleeve is sleeved outside the water pump housing, the bottom of the water pump housing contacts the pushing plate, the pushing plate slides along the outer sleeve, the counterweight slides inward along the outer sleeve through the side rotating rod, so that the position of the counterweight at the position of the bottom of the water pump housing is adjusted, so that the position of the counterweight is closer to the center of the outer sleeve than the other three counterweights, thereby adjusting the center of gravity of the outer sleeve and the water pump housing as a whole, and thereby making the outer sleeve drive the water pump housing to rotate more stably and reducing the vibration generated when the water pump housing rotates.

[0010] Further, the machining mechanism comprises a tooth column rotatably installed on the frame body, an upper intermittent gear is fixedly installed on the tooth column, a side convex ball is arranged in the frame body, a bidirectional threaded column is slidably installed in the frame body, a bidirectional external thread is arranged on the bidirectional threaded column, the side convex ball slides in the bidirectional external thread of the bidirectional threaded column, a screw column gear is fixedly installed on the bidirectional threaded column, the screw column gear is engaged with the tooth column, and the upper intermittent gear is engaged with the half-tooth gear.

[0011] Further, an inner rotating column is rotatably installed in the bidirectional threaded column, an inner rotating support cylinder is fixedly installed on the inner rotating column, and an inner rotating gear is fixedly installed on the inner rotating support cylinder. When the inner rotating gear reaches above the rotating butt joint gear, the inner rotating gear is engaged with the rotating butt joint gear.

[0012] Further, a plurality of inner support blocks are slidably installed in the inner rotating support cylinder, a support spring is arranged between the inner support blocks and the inner rotating support cylinder, a support slope is arranged on the inner side of the inner support block, an inner sliding sleeve is fixedly installed in the inner rotating support cylinder, an inner pushing column is slidably installed outside the inner sliding sleeve, two cones are arranged on the inner pushing column, the conical surface of the cone cooperates with the support slope, and an inner spring is arranged between the inner pushing column and the inner rotating support cylinder.

[0013] Further, a turning tool electric cylinder is fixedly installed on the frame body, and a turning tool is fixedly installed on an output end of the turning tool electric cylinder.

[0014] When the outer sleeve reaches the outside of the water pump shell, the half-tooth gear is disengaged from the lower intermittent gear, the half-tooth gear starts to engage with the upper intermittent gear, the half-tooth gear drives the upper intermittent gear and the tooth column to rotate, the tooth column drives the screw column gear and the bidirectional threaded column to rotate, the bidirectional threaded column moves towards the water pump shell under the action of the side convex ball, the screw column gear keeps engaging with the tooth column, the inner rotating support cylinder is inserted into the water pump shell, when the inner push column contacts the inner wall of the water pump shell, the bidirectional threaded column continues to move towards the water pump shell, which makes the inner push column slide along the inner sliding sleeve, the inner spring is compressed, the inner support block is driven to move outward through the cooperation of the taper surface of the cone and the support slope surface, the support spring is compressed, the inner wall of the water pump shell is supported tightly by the inner support block, the inner rotating gear engages with the rotating butt joint gear, the rotating motor drives the driving wheel to rotate, the right rotating gear, the outer rotating shaft, the input gear and the left rotating gear are driven to rotate through the horizontal transmission belt, the rotating butt joint gear is driven to rotate through the rotating transmission belt by the right rotating gear, the inner rotating gear and the inner rotating support cylinder are driven to rotate, so that the water pump shell is driven to rotate together through the inner support block, the inner rotating column rotates in the bidirectional threaded column, at the same time, the left rotating gear drives the upper transmission gear to rotate through the rotating transmission belt, the outer rotating column, the outer sleeve and the rotating column gear are driven to rotate by the upper transmission gear, the rolling ball reduces the friction, the turning tool electric cylinder is elongated, the turning tool is extended, and the water pump shell is turned by the turning tool.

[0015] Further, the driving mechanism comprises a rotating transmission belt wound outside the right rotating gear and the rotating butt joint gear, a rotating motor is fixedly installed on the frame body, a driving wheel is fixedly installed on a motor shaft of the rotating motor, and a horizontal transmission belt is wound outside the driving wheel and the right rotating gear.

[0016] Further, two support modules are arranged on the frame body, each support module comprises two bidirectional threaded rods rotatably installed on the frame body, two sections of bidirectional external threads are arranged on the bidirectional threaded rods, a lifting gear is fixedly installed on each bidirectional threaded rod, a triangular transmission belt is wound outside the output wheel and the two lifting gears, two internal threaded seats are slidably installed on the frame body, the internal threaded seats are in threaded transmission with the bidirectional external threads of the bidirectional threaded rods, a lifting seat is slidably installed on the frame body, a lifting rod is rotatably installed on the internal threaded seat, and the lifting rod is rotatably installed on the lifting seat.

[0017] The output wheel rotates to drive the lifting gear and the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the inner threaded seat to slide along the frame body, and the lifting rod drives the lifting seat to lift and descend, when the outer sleeve reaches the outside of the water pump shell, the lifting seat is just at the highest point, when the inner rotating support cylinder extends into the water pump shell, the lifting seat is separated from the bottom foot of the water pump shell, when the lifting seat descends to the lowest point, the lifting seat starts to rise, when the turning of the water pump shell is completed, the outer sleeve and the inner rotating support cylinder leave the water pump shell, and the lifting seat reaches below the water pump shell to support the water pump shell, so that the water pump shell is convenient to take away.

[0018] Compared with the prior art, the present application has the following advantages: (1) The support mechanism of the present application can automatically adjust the position of the counterweight block according to the position of the bottom foot of the water pump shell, so that the overall center of gravity of the outer sleeve and the water pump shell is closer to the rotation center, effectively reducing the vibration during high-speed rotation and improving the turning precision and surface finish; (2) The machining mechanism of the present application adopts a structure in which a bidirectional threaded column drives an inner support block, which is combined with a support slope and a cone to enable the inner support block to uniformly apply support force to the pump body from the inside to the outside, avoiding the deformation of the shell caused by uneven clamping force of traditional clamps and ensuring the dimensional accuracy and roundness after machining; (3) The present application realizes automatic clamping, rotation and turning of the water pump shell through linkage control of the docking motor, the rotating motor and the turning motor, reducing manual intervention; (4) The lifting of the lifting seat of the present application is synchronized with the machining process, realizing automatic feeding and discharging, improving production efficiency and being suitable for batch processing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the support mechanism structure of the present application Figure One .

[0021] Figure 3 It is a schematic diagram of the support mechanism structure of the present application Figure Two .

[0022] Figure 4 It is a schematic diagram of the support mechanism structure of the present application Figure Three .

[0023] Figure 5 It is a schematic diagram of the machining mechanism structure of the present application Figure One .

[0024] Figure 6 It is a schematic diagram of the machining mechanism structure of the present application Figure Two .

[0025] Figure 7 It is a schematic diagram of the machining mechanism structure of the present application Figure Three .

[0026] Figure 8 Structure of the processing mechanism of the present application Figure Four .

[0027] Figure 9 Structure of the driving mechanism of the present application Figure One .

[0028] Figure 10 Structure of the driving mechanism of the present application Figure Two .

[0029] Figure 11 Structure of the driving mechanism of the present application Figure Three .

[0030] Figure 12 Structure of the driving mechanism of the present application Figure Four .

[0031] Reference signs: 101 - frame body; 102 - sliding seat; 103 - bidirectional screw rod; 104 - outer rotating column; 105 - outer sleeve; 106 - screw rod gear; 107 - inner long shaft; 108 - end gear; 109 - vertical transmission belt; 110 - outer rotating shaft; 111 - left rotating gear; 112 - upper transmission gear; 113 - rotating column gear; 114 - rotating transmission belt; 115 - rolling ball; 116 - counterweight; 117 - side rotating lever; 118 - pushing plate; 119 - push plate spring; 120 - right rotating gear; 121 - lower intermittent gear; 122 - inner convex ball; 123 - input gear; 201 - toothed column; 202 - bidirectional threaded column; 203 - upper intermittent gear; 204 - screw column gear; 205 - inner rotating gear; 206 - turning tool electric cylinder; 207 - turning tool; 208 - inner rotating support cylinder; 209 - side convex ball; 210 - rotating butt joint gear; 211 - inner rotating column; 212 - inner pushing column; 213 - cone; 214 - inner support block; 215 - support spring; 216 - support slope surface; 217 - inner sliding sleeve; 218 - inner spring; 301 - butt joint motor; 302 - output wheel; 303 - half-tooth gear; 304 - triangular transmission belt; 305 - bidirectional threaded rod; 306 - lifting gear; 307 - inner threaded seat; 308 - lifting rod; 309 - lifting seat; 310 - rotating motor; 311 - driving wheel; 312 - horizontal transmission belt; 313 - rotating transmission belt; 4 - water pump housing. DETAILED DESCRIPTION

[0032] The specific embodiments of the present application are further described below with reference to the accompanying drawings.

[0033] Example: Reference Figures 1-12The utility model provides a water pump casing processing lathe, including the support mechanism for supporting water pump casing 4, and the support mechanism includes frame body 101, and the support mechanism is provided with processing mechanism and drive mechanism who drives water pump casing 4 rotation and is carried out the turning processing to water pump casing 4,

[0034] The support mechanism includes an inner long shaft 107 rotatably installed on the frame body 101, the inner long shaft 107 is fixedly installed with an end gear 108 and a lower intermittent gear 121, the inner long shaft 107 is rotatably installed with an outer rotating shaft 110, the outer rotating shaft 110 is fixedly installed with a left rotating gear 111, a right rotating gear 120 and an input gear 123, and the frame body 101 is rotatably installed with a rotating butt joint gear 210.

[0035] The drive mechanism includes a butt joint motor 301, the motor shaft of the butt joint motor 301 is fixedly installed with an output wheel 302 and a half-tooth gear 303, and the half-tooth gear 303 is engaged with the lower intermittent gear 121.

[0036] As shown in Figures 2-4 The support mechanism further includes a sliding seat 102 slidingly installed on the frame body 101, the inner long shaft 107 penetrates through the sliding seat 102 and does not contact the sliding seat 102, the frame body 101 is rotatably installed with two bidirectional screw rods 103, the bidirectional screw rods 103 are provided with bidirectional external threads, the bidirectional screw rods 103 are fixedly installed with screw rod gears 106, the end gear 108 and the two screw rod gears 106 are externally wound with a vertical transmission belt 109, the sliding seat 102 is fixedly installed with two inner convex balls 122, and the inner convex balls 122 slide in the bidirectional external threads of the bidirectional screw rods 103.

[0037] As shown in Figures 2-4 The frame body 101 is rotatably installed with an upper transmission gear 112, the sliding seat 102 is rotatably installed with an outer rotating column 104, the outer rotating column 104 is fixedly installed with an outer sleeve 105, the outer rotating column 104 is fixedly installed with a rotating column gear 113, the rotating column gear 113 is engaged with the upper transmission gear 112, the upper transmission gear 112 and the left rotating gear 111 are externally wound with a rotating transmission belt 114, and the frame body 101 is rotatably installed with a plurality of rolling balls 115.

[0038] As shown in Figures 2-4 The outer sleeve 105 is slidingly installed with a counterweight 116, the counterweight 116 is rotatably installed with a side rotating rod 117, the side rotating rod 117 is rotatably installed with a pushing plate 118, the pushing plate 118 is slidingly installed with the outer sleeve 105, and the pushing plate 118 and the outer sleeve 105 are provided with a pushing plate spring 119.

[0039] When in use, the water pump shell 4 is placed on the supporting seat 309, the motor 301 drives the output wheel 302 and the half-tooth gear 303 to rotate, the half-tooth gear 303 is not engaged with the upper intermittent gear 203 when the half-tooth gear 303 is engaged with the lower intermittent gear 121, the lower intermittent gear 121 drives the inner long shaft 107 and the end gear 108 to rotate, the end gear 108 drives the screw gear 106 and the bidirectional screw rod 103 to rotate through the vertical transmission belt 109, the bidirectional screw rod 103 drives the sliding seat 102 to slide inward through the inner convex ball 122, so that the outer sleeve 105 is sleeved outside the water pump shell 4, the bottom foot of the water pump shell 4 is in contact with the pushing plate 118, the pushing plate 118 slides along the outer sleeve 105, the counterweight block 116 slides along the outer sleeve 105 inwardly through the side rotating rod 117, so as to adjust the position of the counterweight block 116 at the position of the bottom foot of the water pump shell 4, so that the position of the counterweight block 116 is closer to the center of the outer sleeve 105 than the other three counterweight blocks 116, thereby adjusting the center of gravity of the outer sleeve 105 and the water pump shell 4 as a whole, and further making the outer sleeve 105 drive the water pump shell 4 to rotate more stably and reduce the vibration generated when the water pump shell 4 rotates.

[0040] As shown in Figures 5-8 , the machining mechanism comprises a tooth column 201 rotatably installed on the frame body 101, an upper intermittent gear 203 fixedly installed on the tooth column 201, a side convex ball 209 arranged in the frame body 101, a bidirectional threaded column 202 slidably installed in the frame body 101, a bidirectional outer thread arranged on the bidirectional threaded column 202, the side convex ball 209 sliding in the bidirectional outer thread of the bidirectional threaded column 202, a screw column gear 204 fixedly installed on the bidirectional threaded column 202, the screw column gear 204 engaged with the tooth column 201, and the upper intermittent gear 203 engaged with the half-tooth gear 303.

[0041] As shown in Figures 5-8 , an inner rotating column 211 is rotatably installed in the bidirectional threaded column 202, an inner rotating support cylinder 208 is fixedly installed on the inner rotating column 211, and an inner rotating gear 205 is fixedly installed on the inner rotating support cylinder 208, the inner rotating gear 205 engaged with the rotating butt joint gear 210 when the inner rotating gear 205 reaches above the rotating butt joint gear 210.

[0042] As shown in Figures 5-8 , a plurality of inner support blocks 214 are slidably installed in the inner rotating support cylinder 208, a support spring 215 is arranged between the inner support block 214 and the inner rotating support cylinder 208, a support slope surface 216 is arranged on the inner side of the inner support block 214, an inner sliding sleeve 217 is fixedly installed in the inner rotating support cylinder 208, an inner pushing column 212 is slidably installed outside the inner sliding sleeve 217, two cones 213 are arranged on the inner pushing column 212, the taper surfaces of the cones 213 cooperate with the support slope surface 216, and an inner spring 218 is arranged between the inner pushing column 212 and the inner rotating support cylinder 208.

[0043] AsFigures 5-8 As shown, a cutting tool electric cylinder 206 is fixedly installed on the frame 101, and a cutting tool 207 is fixedly installed on the output end of the cutting tool electric cylinder 206.

[0044] When the outer sleeve 105 reaches the outside of the pump housing 4, the half-tooth gear 303 disengages from the lower intermittent gear 121, and begins to mesh with the upper intermittent gear 203. The half-tooth gear 303 drives the upper intermittent gear 203 and the toothed column 201 to rotate. The toothed column 201 drives the stud gear 204 and the double-threaded column 202 to rotate. Under the action of the side convex ball 209, the double-threaded column 202 moves towards the pump housing 4, while the stud gear 204 remains meshed with the toothed column 201. The inner support cylinder 208 is inserted into the water pump housing 4. When the inner push column 212 contacts the inner wall of the water pump housing 4, the bidirectional threaded column 202 continues to move towards the water pump housing 4, causing the inner push column 212 to slide along the inner sliding sleeve 217. The inner spring 218 is compressed, and through the cooperation of the conical surface of the cone 213 and the supporting slope 216, the inner support block 214 is driven to move outward, and the supporting spring 215 is compressed. The inner support block 214 tightens the inner wall of the water pump housing 4. When the bidirectional threaded column 202... After moving to the innermost side, the inner support block 214 tightens the inner wall of the water pump housing 4. The inner rotating gear 205 meshes with the rotating docking gear 210. The rotating motor 310 drives the drive wheel 311 to rotate, which in turn drives the right rotating gear 120, the outer rotating shaft 110, the input gear 123, and the left rotating gear 111 to rotate via the transverse transmission belt 312. The right rotating gear 120 drives the rotating docking gear 210 to rotate via the rotating transmission belt 313, which in turn drives the inner rotating gear 205 and the inner rotating support cylinder 208 to rotate. The inner support block 214 drives the water pump housing 4 to rotate together. The inner rotating column 211 rotates in the bidirectional threaded column 202. At the same time, the left rotating gear 111 drives the upper transmission gear 112 to rotate through the rotating transmission belt 114. The upper transmission gear 112 drives the rotating column gear 113, the outer rotating column 104 and the outer sleeve 105 to rotate. The friction is reduced by the rolling ball 115. The cutting tool electric cylinder 206 extends, driving the cutting tool 207 to extend. The cutting tool 207 performs turning machining on the water pump housing 4.

[0045] like Figures 9-12 As shown, the drive mechanism includes a rotating transmission belt 313 wrapped around the right rotating gear 120 and the rotating mating gear 210. A rotating motor 310 is fixedly installed on the frame 101. A drive wheel 311 is fixedly installed on the motor shaft of the rotating motor 310. A transverse transmission belt 312 is wrapped around the drive wheel 311 and the right rotating gear 120.

[0046] like Figures 9-12As shown, the frame body 101 is provided with two supporting modules, the supporting module comprises two bidirectional threaded rods 305 rotatably installed on the frame body 101, two sections of bidirectional external threads are arranged on the bidirectional threaded rods 305, a lifting gear 306 is fixedly installed on the bidirectional threaded rods 305, the output wheel 302 and the two lifting gears 306 are externally wound with a triangular transmission belt 304, two internal threaded seats 307 are slidably installed on the frame body 101, the internal threaded seats 307 are in threaded transmission with the bidirectional external threads of the bidirectional threaded rods 305, a lifting seat 309 is slidably installed on the frame body 101, a lifting rod 308 is rotatably installed on the internal threaded seat 307, and the lifting rod 308 is rotatably installed with the lifting seat 309.

[0047] The output wheel 302 rotates to drive the lifting gear 306 and the bidirectional threaded rod 305 to rotate through the triangular transmission belt 304, the bidirectional threaded rod 305 drives the internal threaded seat 307 to slide along the frame body 101, the lifting seat 309 is driven to rise and fall through the lifting rod 308, when the outer sleeve 105 reaches the outside of the water pump housing 4, the lifting seat 309 is just at the highest point, when the inner rotating support cylinder 208 extends into the water pump housing 4, the lifting seat 309 is separated from the bottom foot of the water pump housing 4, when the lifting seat 309 descends to the lowest point, it starts to rise, when the water pump housing 4 is finished with turning, the outer sleeve 105 and the inner rotating support cylinder 208 are separated from the water pump housing 4, and the lifting seat 309 reaches below the water pump housing 4 to support the water pump housing 4, facilitating the removal of the water pump housing 4.

[0048] The working principle of the lathe for machining a water pump shell is as follows: when in use, the water pump shell 4 is placed on the lifting seat 309, the motor 301 drives the output wheel 302 and the half-tooth gear 303 to rotate, the output wheel 302 rotates to drive the lifting gear 306 and the bidirectional threaded rod 305 to rotate through the triangular transmission belt 304, the bidirectional threaded rod 305 rotates to drive the inner threaded seat 307 to slide along the frame body 101, the lifting rod 308 drives the lifting seat 309 to ascend and descend, when the outer sleeve 105 reaches the outside of the water pump shell 4, the lifting seat 309 is just at the highest point, when the half-tooth gear 303 meshes with the lower intermittent gear 121, the half-tooth gear 303 does not mesh with the upper intermittent gear 203, the lower intermittent gear 121 drives the inner long shaft 107 and the end gear 108 to rotate, the end gear 108 drives the screw gear 106 and the bidirectional screw rod 103 to rotate through the vertical transmission belt 109, the bidirectional screw rod 103 drives the sliding seat 102 to slide inwards through the inner convex ball 122, so that the outer sleeve 105 is sleeved outside the water pump shell 4, the bottom foot of the water pump shell 4 is in contact with the pushing plate 118, the pushing plate 118 slides along the outer sleeve 105, the counterweight 116 slides inwards along the outer sleeve 105 through the side rotating rod 117, so as to adjust the position of the counterweight 116 at the position of the bottom foot of the water pump shell 4, so that the position of the counterweight 116 is closer to the center of the outer sleeve 105 than the other three counterweights 116, thereby adjusting the center of gravity of the outer sleeve 105 and the water pump shell 4 as a whole, so that the rotation of the outer sleeve 105 and the water pump shell 4 is more stable, and the vibration generated during the rotation of the water pump shell 4 is reduced.When the outer sleeve 105 reaches the outside of the water pump housing 4, the half-tooth gear 303 disengages from the lower intermittent gear 121, and the half-tooth gear 303 engages with the upper intermittent gear 203, and the half-tooth gear 303 drives the upper intermittent gear 203 and the tooth column 201 to rotate, the tooth column 201 drives the stud gear 204 and the bidirectional threaded column 202 to rotate, and the bidirectional threaded column 202 moves towards the water pump housing 4 under the action of the side convex ball 209, the stud gear 204 remains engaged with the tooth column 201, and the inner rotating support cylinder 208 is inserted into the water pump housing 4. When the inner rotating support cylinder 208 extends into the water pump housing 4, the supporting seat 309 disengages from the bottom foot of the water pump housing 4. When the inner push column 212 contacts the inner wall of the water pump housing 4, the bidirectional threaded column 202 continues to move towards the water pump housing 4, which causes the inner push column 212 to slide along the inner sliding sleeve 217, and the inner spring 218 is compressed. Through the cooperation of the taper surface of the cone 213 and the supporting slope surface 216, the inner support block 214 is driven to move outward, and the supporting spring 215 is compressed. The inner support block 214 supports the inner wall of the water pump housing 4, the inner rotating gear 205 engages with the rotating butt joint gear 210, the rotating motor 310 drives the driving wheel 311 to rotate, which drives the right rotating gear 120, the outer rotating shaft 110, the input gear 123 and the left rotating gear 111 to rotate through the horizontal transmission belt 312. The right rotating gear 120 drives the rotating butt joint gear 210 to rotate through the rotating transmission belt 313, which drives the inner rotating gear 205 and the inner rotating support cylinder 208 to rotate, so as to drive the water pump housing 4 to rotate through the inner support block 214. The inner rotating column 211 rotates in the bidirectional threaded column 202, and at the same time, the left rotating gear 111 drives the upper transmission gear 112 to rotate through the rotating transmission belt 114, which drives the rotating column gear 113, the outer rotating column 104 and the outer sleeve 105 to rotate through the upper transmission gear 112. The rolling ball 115 reduces the friction, the turning tool cylinder 206 is elongated, which drives the turning tool 207 to extend out and perform turning processing on the water pump housing 4. When the supporting seat 309 descends to the lowest position and then rises, and when the turning processing on the water pump housing 4 is completed, the outer sleeve 105 and the inner rotating support cylinder 208 move away from the water pump housing 4, and the supporting seat 309 reaches the position below the water pump housing 4 to support the water pump housing 4, which facilitates the removal of the water pump housing 4.

[0049] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical scope of the present application according to the technical scheme and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A lathe for machining a water pump housing, comprising a support mechanism for supporting a water pump housing (4), characterized in that: The support mechanism comprises a frame body (101), and a machining mechanism and a driving mechanism are arranged on the support mechanism to drive the water pump shell (4) to rotate and perform turning machining on the water pump shell (4); The support mechanism comprises an inner long shaft (107) rotatably installed on the frame body (101), the inner long shaft (107) is fixedly installed with an end gear (108) and a lower intermittent gear (121), the inner long shaft (107) is rotatably installed with an outer rotating shaft (110), the outer rotating shaft (110) is fixedly installed with a left rotating gear (111), a right rotating gear (120) and an input gear (123), and the frame body (101) is rotatably installed with a rotating butt joint gear (210); The driving mechanism comprises a butt joint motor (301), the motor shaft of the butt joint motor (301) is fixedly installed with an output wheel (302) and a half-tooth gear (303), and the half-tooth gear (303) is engaged with the lower intermittent gear (121); The support mechanism further comprises a sliding seat (102) slidably installed on the frame body (101), the inner long shaft (107) penetrates through the sliding seat (102) and does not contact the sliding seat (102), the frame body (101) is rotatably installed with two bidirectional lead screws (103), the bidirectional lead screws (103) are provided with bidirectional external threads, the bidirectional lead screws (103) are fixedly installed with lead screw gears (106), the end gear (108) and the two lead screw gears (106) are externally wound with vertical transmission belts (109), the sliding seat (102) is fixedly installed with two inner convex balls (122), and the inner convex balls (122) slide in the bidirectional external threads of the bidirectional lead screws (103); The frame body (101) is rotatably installed with an upper transmission gear (112), the sliding seat (102) is rotatably installed with an outer rotating column (104), the outer rotating column (104) is fixedly installed with an outer sleeve (105), the outer rotating column (104) is fixedly installed with a rotating column gear (113), the rotating column gear (113) is engaged with the upper transmission gear (112), the upper transmission gear (112) and the left rotating gear (111) are externally wound with a rotating transmission belt (114), and the frame body (101) is rotatably installed with a plurality of rolling balls (115); The outer sleeve (105) is slidably installed with a counterweight (116), the counterweight (116) is rotatably installed with a side rotating rod (117), the side rotating rod (117) is rotatably installed with a pushing plate (118), the pushing plate (118) is slidably installed with the outer sleeve (105), and the pushing plate (118) and the outer sleeve (105) are provided with a pushing plate spring (119). The processing mechanism comprises a tooth column (201) rotatably installed on a frame body (101), an upper intermittent gear (203) fixedly installed on the tooth column (201), a side bulging ball (209) arranged in the frame body (101), a bidirectional threaded column (202) slidably installed in the frame body (101), a bidirectional external thread arranged on the bidirectional threaded column (202), the side bulging ball (209) sliding in the bidirectional external thread of the bidirectional threaded column (202), a stud gear (204) fixedly installed on the bidirectional threaded column (202), the stud gear (204) meshing with the tooth column (201), and the upper intermittent gear (203) meshing with a half-tooth gear (303).

2. A lathe for machining a water pump housing according to claim 1, characterized in that: The bidirectional threaded column (202) is rotatably installed with an inner rotating column (211), the inner rotating column (211) is fixedly installed with an inner rotating support cylinder (208), the inner rotating support cylinder (208) is fixedly installed with an inner rotating gear (205), and when the inner rotating gear (205) reaches above the rotating butt joint gear (210), the inner rotating gear (205) meshes with the rotating butt joint gear (210).

3. A lathe for machining a water pump housing according to claim 2, characterized in that: The inner rotating support cylinder (208) is slidably installed with a plurality of inner support blocks (214), the inner support blocks (214) and the inner rotating support cylinder (208) are provided with support springs (215), the inner side of the inner support block (214) is provided with a support slope (216), the inner rotating support cylinder (208) is fixedly installed with an inner sliding sleeve (217), the inner sliding sleeve (217) is slidably installed with an inner push column (212), the inner push column (212) is provided with two cones (213), the taper surface of the cone (213) cooperates with the support slope (216), and the inner push column (212) and the inner rotating support cylinder (208) are provided with an inner spring (218).

4. A lathe for machining a water pump housing according to claim 3, characterized in that: The frame body (101) is fixedly installed with a turning tool electric cylinder (206), and the output end of the turning tool electric cylinder (206) is fixedly installed with a turning tool (207).

5. The lathe for machining a water pump housing according to claim 1, characterized in that: The driving mechanism comprises a rotating transmission belt (313) wound outside the right rotating gear (120) and the rotating butt joint gear (210), the frame body (101) is fixedly installed with a rotating motor (310), the motor shaft of the rotating motor (310) is fixedly installed with a driving wheel (311), and the driving wheel (311) and the right rotating gear (120) are wound with a horizontal transmission belt (312) outside.

6. A lathe for machining a water pump housing according to claim 5, characterized in that: The frame body (101) is provided with two support modules, the support module comprises two bidirectional threaded rods (305) rotatably installed on the frame body (101), the bidirectional threaded rods (305) are provided with two sections of bidirectional external threads, the bidirectional threaded rods (305) are fixedly installed with lifting gears (306), the output wheel (302) and the two lifting gears (306) are wound with a triangular transmission belt (304) outside, the frame body (101) is slidably installed with two inner threaded seats (307), the inner threaded seats (307) and the bidirectional external threads of the bidirectional threaded rods (305) form threaded transmission, the frame body (101) is slidably installed with a lifting seat (309), the inner threaded seat (307) is rotatably installed with a lifting rod (308), and the lifting rod (308) is rotatably installed with the lifting seat (309).

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