Multi-station automobile water pump shell machining clamp

Abstract

The utility model discloses a multi-station automobile water pump shell machining clamp, and belongs to the field of machining clamps. Comprising a first workbench and a clamp assembly, the clamp assembly comprises a bearing part installed on the first workbench in a penetrating mode, the bearing part comprises a first housing and a second housing, a chuck body is installed in a center through hole of the second housing in a bearing mode, the chuck body is provided with a gear ring, and a bevel gear is arranged between the second housing and the first housing; a supporting disc is installed on the second housing, a spiral groove is formed in the chuck body, four sets of clamping blocks are arranged on the spiral groove, racks are arranged on the clamping blocks, a guide groove is formed in the supporting disc, flexible pads are arranged on the clamping blocks, and pressure sensors are arranged in the flexible pads. A second workbench is arranged on one side of the first workbench, a connecting assembly is installed on the second workbench, and a driving shaft is connected between the two sets of bevel gears. According to the multi-station automobile water pump shell machining clamp, the bevel gear is driven by external power to enable the chuck body to rotate, the clamping blocks are pushed to conduct clamping, a silica gel pad is prevented from being damaged, and the problem of uneven clamping is solved.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and in particular to a multi-station automotive water pump housing machining fixture. Background Technology

[0002] As a key component of a car engine cooling system, the water pump's primary function is to ensure the circulation of coolant within the engine, thereby maintaining its normal operating temperature. The water pump housing is the fundamental supporting structure of the pump; it not only provides installation space for internal components such as the impeller and shaft but also ensures the sealing and smooth flow of coolant. Therefore, the machining precision and quality of the water pump housing directly affect the pump's performance and reliability, which in turn significantly impacts the overall performance and lifespan of the car engine.

[0003] In some existing multi-station automotive water pump housing machining fixtures, multiple annular fixtures are sequentially installed between side connecting plates using side connecting rods and slots, bolt fixing, and male and female connectors and locking holes of connecting blocks. When clamping the workpiece, the water pump housing is placed on the top extension bar, with its bottom extension entering the annular fixture and the inner wall of the top extension bar. Rotating the first screw moves the first top ball, which, in conjunction with the anti-slip tooth layer, clamps the housing from above. Simultaneously, rotating the second screw drives the second top ball to move, clamping the housing from the bottom side. The combination of these two mechanisms achieves stable clamping of water pump housings of different shapes.

[0004] In existing multi-station automotive water pump housing machining fixtures, clamping the water pump housing requires first rotating the first screw to move the first top ball, then rotating the second screw to move the second top ball, clamping different parts of the water pump housing separately. In practice, it's difficult to ensure that each top ball applies a completely uniform clamping force to the water pump housing. Uneven clamping force may cause displacement or deformation of the water pump housing during machining, affecting the machining quality. Therefore, a multi-station automotive water pump housing machining fixture needs to be designed.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] This utility model provides a multi-station automotive water pump housing processing fixture to solve the problem that existing fixtures require step-by-step operation of the first and second screws to move the top ball when clamping the water pump housing, making it difficult to control the uniformity of clamping force through manual adjustment, which can easily lead to housing displacement and deformation, affecting processing quality.

[0007] This utility model embodiment adopts the following technical solution: a multi-station automotive water pump housing machining fixture. It mainly includes a workbench one and a fixture assembly. The fixture assembly includes a support portion that is installed through the workbench one. The support portion consists of a cover one and a cover two. A chuck body is mounted in the central through hole of cover two. The chuck body has a gear ring. A bevel gear is mounted between cover two and cover one. A support plate is installed on cover two. The chuck body has a spiral groove. Four sets of clamping blocks are arranged on the spiral groove. A rack is arranged on each clamping block. The support plate has a guide groove that restricts the movement direction of the clamping blocks. A flexible pad is arranged on each clamping block, and a pressure sensor is embedded in the flexible pad. A workbench two is arranged on one side of the workbench one. The fixture assembly is installed on workbench two. A connecting assembly connected to workbench one is installed on workbench two. A drive shaft driven by an external device is connected between the bevel gears of the two sets of fixture assemblies.

[0008] Furthermore, the connecting assembly includes two sets of fixing blocks installed on the side of the first workbench near the second workbench, and an alignment block that can be fitted onto the fixing blocks is installed on the second workbench; a docking part is connected and installed on the first workbench and the second workbench, the docking part includes a first fixing seat installed on the first workbench, a protrusion installed near one end of the first fixing seat, a rotating member rotatably installed on the protrusion, a hanging rod rotatably installed on the rotating member, a second fixing seat installed on the alignment block, and a hooking block adapted to the hooking block installed on the second fixing seat, the fixing block is installed on the side of the first workbench near the second workbench, and the alignment block is fixedly installed at the corresponding position on the second workbench.

[0009] Furthermore, the fixing block and the alignment block can be connected by fasteners.

[0010] Furthermore, a placement plate is fixedly installed on the support plate, and an anti-slip pad made of silicone is fixedly installed on the placement plate.

[0011] Furthermore, a cutting assembly is mounted on the support. The cutting assembly includes a frame mounted on the support and positioned between the limiting assembly and the stamping assembly. The side of the frame away from the conveyor frame has a groove. Two sets of guide rails are mounted on the bottom of the inner wall of the groove. A motor is fixedly mounted in the groove between one end of each of the two sets of guide rails. A lead screw is mounted on the output end of the motor. One end of the lead screw is connected to a bearing at one end of the inner wall of the groove. A laser cutting frame is threaded onto the lead screw. The bottom surface of the laser cutting frame has a sliding block that is slidably connected to the two sets of guide rails. The laser cutting frame has a laser cutting head.

[0012] Furthermore, the workbench can be flexibly configured with multiple sets according to production needs. Each set of workbench has integrated connecting components on both sides. One side is fixedly installed with a positioning block, and the other side is set with a corresponding matching alignment block. Quick and accurate positioning is achieved through a plug-in socket structure. Each workbench is equipped with a clamping component for clamping the car water pump housing.

[0013] Furthermore, both the first and second housings are columnar structures.

[0014] Furthermore, the second cover is fixed on the first workbench, and the first cover is fixed to the second cover by multiple sets of bolts.

[0015] Furthermore, the four sets of clamping blocks are arranged perpendicularly to each other.

[0016] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0017] A multi-station automotive water pump housing machining fixture transmits external power to a bevel gear, driving the chuck body to rotate. The helical grooves on the chuck body push four sets of clamping blocks to move synchronously along guide grooves, achieving clamping. The flexible silicone pads on the clamping blocks prevent damage to the workpiece surface. A pressure sensor monitors the pressure in real time, stopping the power source when a threshold is reached, ensuring uniform and appropriate clamping force. Synchronous driving of the fixture components at each station is achieved through connecting component 3 and a drive shaft. Compared to traditional fixtures, this design solves the problem of uneven clamping force caused by the screw controlling the top ball, preventing workpiece displacement and deformation. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0019] In the attached diagram:

[0020] Figure 1 This is an overall schematic diagram of a multi-station automotive water pump housing machining fixture according to this application;

[0021] Figure 2 for Figure 1 Schematic diagram of the middle and bottom structure;

[0022] Figure 3 for Figure 1 A partial structural diagram;

[0023] Figure 4 for Figure 3 Exploded view;

[0024] Figure 5 for Figure 3 Enlarged view of point A;

[0025] Figure label:

[0026] 1. Workbench 1; 2. Fixture assembly; 21. Cover 1; 22. Bolt; 23. Cover 2; 24. Chuck body; 25. Bevel gear; 26. Spiral groove; 27. Clamping block; 28. Support plate; 29. ​​Guide groove; 210. Placement plate; 211. Rack; 212. Drive shaft; 3. Connecting assembly; 31. Fixing block; 32. Alignment block; 33. First fixed seat; 34. Protrusion; 35. Rotating component; 36. Hanging rod; 37. Second fixed seat; 38. Hook block. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1 to 5 As shown, this utility model embodiment provides a multi-station automotive water pump housing processing fixture, including a worktable 1, a fixture assembly 2, and a connecting assembly 3;

[0030] The clamp assembly 2 includes a support portion that is fixedly installed through the bottom surface of the workbench 1. The support portion is composed of a cover 21 and a cover 23. Both the cover 21 and the cover 23 are columnar structures. The cover 21 is fixed to the cover 23 by multiple sets of bolts 22. The cover 23 is fixed on the workbench 1.

[0031] Furthermore, the second cover 23 has a central through hole, and a chuck body 24 is mounted on the bearing at the position of the central through hole. The chuck body 24 has a gear ring (not shown in the figure). At the same time, a bevel gear 25 is mounted on the bearing between the second cover 23 and the first cover 21. The bevel gear 25 is adapted to rotate so as to drive the chuck body 24 to rotate along its axis.

[0032] Furthermore, a support plate 28 is fixedly installed on the cover 23, and a spiral groove 26 is provided on the chuck body 24. Four sets of clamping blocks 27 are provided on the spiral groove 26. A rack 211 is provided on the side of the clamping block 27 near the spiral groove 26 to cooperate with it. The four sets of clamping blocks 27 are arranged perpendicular to each other. At the same time, a guide groove 29 is provided on the support plate 28 to restrict the movement of the four sets of clamping blocks 27.

[0033] When an external power source (such as a motor) provides power to the bevel gear 25, the bevel gear 25 will begin to rotate. This power source can transmit power to the bevel gear 25 through belt drive, coupling connection, or other means.

[0034] Since the bevel gear 25 meshes with the gear ring on the chuck body 24, when the bevel gear 25 rotates, according to the gear transmission principle, the bevel gear 25 will drive the chuck body 24 to rotate around its own axis. Cover 1 21 and cover 23 provide support and protection for the bevel gear 25 and the chuck body 24, and the installation of bearings ensures that they can rotate smoothly.

[0035] The chuck body 24 has a spiral groove 26, and four sets of clamping blocks 27 cooperate with the spiral groove 26. When the chuck body 24 rotates, the spiral groove 26 also rotates.

[0036] Due to the special structure of the spiral groove 26, during the rotation of the chuck body 24, the spiral groove 26 exerts a force on the clamping block 27 in the spiral direction, causing the clamping block 27 to move along the trajectory of the spiral groove 26. Because the four sets of clamping blocks 27 are arranged perpendicularly to each other, and the support plate 28 has a guide groove 29 to restrict the movement of the clamping blocks 27, the clamping blocks 27 can only move in a straight line along the guide groove 29.

[0037] When the chuck body 24 rotates clockwise, the four sets of clamping blocks 27 move along the guide groove 29 toward the center of the chuck body 24, thereby clamping the workpiece placed at the center of the chuck; when the chuck body 24 rotates counterclockwise, the four sets of clamping blocks 27 move along the guide groove 29 away from the center of the chuck body 24, thereby releasing the clamped workpiece.

[0038] Meanwhile, a flexible pad is provided at the contact point between the clamping block 27 and the car water pump housing. This flexible pad can be made of silicone and has good elasticity and flexibility. During the clamping process, the flexible pad first contacts the surface of the car water pump housing and deforms under pressure, rather than allowing the hard surface of the clamping block 27 to directly contact the car water pump housing. This avoids scratches, indentations, or other damage to the surface of the car water pump housing caused by the clamping block 27.

[0039] Furthermore, in this application, a pressure sensor can be embedded in the flexible pad, and a mounting hole adapted to the pressure sensor is opened on the flexible pad. A PLC control system is installed on the workbench 1 to detect the pressure value of the pressure sensor. When the four sets of clamping blocks 27 approach each other and contact the car water pump housing, the flexible pad begins to be compressed, and the pressure is gradually transmitted to the pressure sensor.

[0040] The pressure sensor can detect the pressure value in real time and convert the pressure signal into a processable signal such as an electrical signal. When the pressure value detected by the pressure sensor reaches a preset threshold (this threshold is determined based on factors such as the material and shape of the car water pump housing and the required appropriate clamping force), it will feed back the detected signal to the PLC control system.

[0041] After receiving the signal from the pressure sensor, the PLC control system will issue a command to stop the power source (such as a motor) that drives the chuck body 24 to rotate, so that the four sets of clamping blocks 27 will no longer move closer to each other, thus ensuring that the force on the car water pump housing is appropriate when it is clamped. It will not cause the workpiece to loosen during processing due to insufficient clamping force, nor will it damage the workpiece due to excessive clamping force.

[0042] During initial clamping, the car water pump housing is placed on the support plate 28, thereby transmitting power to the bevel gear 25 via an external power source. The bevel gear 25 meshes with the gear ring on the chuck body 24, causing the chuck body 24 to rotate around its axis. The first and second covers and bearings provide support and smooth rotation conditions. When the chuck body 24 rotates, its spiral groove 26 rotates synchronously, pushing the four sets of mutually perpendicular clamping blocks 27 through the spiral structure. Under the constraint of the guide groove 29 of the support plate 28, the clamping blocks 27 move in a straight line towards or away from the center of the chuck, thereby clamping or releasing the car water pump housing.

[0043] During the clamping process, the flexible silicone pad on the clamping block 27 first contacts the workpiece surface. Its elastic deformation prevents the workpiece from directly contacting the rigid clamping block 27, thus preventing surface damage. At the same time, the pressure sensor embedded in the flexible pad monitors the contact pressure in real time and converts the pressure signal into an electrical signal. When the pressure reaches the threshold set according to the workpiece material and shape, the sensor feeds the signal back to the PLC control system. The PLC immediately instructs the power source to stop working and controls the clamping force. This ensures that the workpiece is stable and does not loosen, while avoiding damage caused by excessive pressure, thus achieving efficient and safe workpiece clamping.

[0044] Specifically, a placement plate 210 is fixedly installed on the support plate 28, and an anti-slip pad (not shown in the figure) is fixedly installed on the placement plate 210. The anti-slip pad is made of silicone to prevent the car water pump housing placed on the placement plate 210 from sliding. During the operation of the fixture assembly 2, even if the worktable 1 is subjected to certain vibrations or other external forces, the car water pump housing can remain in its original position, ensuring the stability of the processing.

[0045] Specifically, a second workbench (not shown in the figure) is provided on one side of the first workbench 1. This second workbench is also suitable for mounting a clamping assembly 2 to clamp multiple sets of automotive water pump housings. A connecting assembly 3 connects the first workbench 1 and the second workbench. This connecting assembly 3 includes two sets of fixing blocks 31 fixedly mounted on the first workbench 1 near the second workbench. Simultaneously, an alignment block 32, which can be fitted onto the fixing blocks 31, is fixedly mounted on the second workbench.

[0046] In this application, the fixing block 31 and the alignment block 32 can be connected by fasteners to facilitate the connection of two sets of worktables;

[0047] The initial alignment of the two worktables is achieved through the sleeve engagement of the fixing block 31 and the alignment block 32. The fixing block 31 is fixed on the side of worktable 1 near worktable 2, and the alignment block 32 is installed at the corresponding position on worktable 2. When the two worktables are close together, the alignment block 32 can be quickly inserted into the fixing block 31.

[0048] A docking part is connected and installed on workbench 1 and workbench 2. The docking part is a locking device in the prior art. The docking part includes a first fixed seat 33 fixedly installed on workbench 1. A protrusion 34 is fixedly installed on the first fixed seat 33 near one end. A rotating member 35 is rotatably installed on the protrusion 34, and a hanging rod 36 is rotatably installed on the rotating member 35. At the same time, a second fixed seat 37 is fixedly installed on the alignment block 32. A hook holding block 38 adapted to the hook holding block 38 is fixedly installed on the second fixed seat 37.

[0049] The fixing block 31 is fixedly installed on the side of worktable 1 that is close to worktable 2, while the alignment block 32 is fixedly installed at the corresponding position on worktable 2.

[0050] When it is necessary to connect the two worktables, worktable 2 is brought close to worktable 1. Due to the interlocking structure of the fixing block 31 and the alignment block 32, the alignment block 32 can be inserted into the fixing block 31. Through this interlocking fit, the relative movement of the two worktables in the horizontal direction is restricted, thereby achieving the initial alignment of the two worktables in position and preparing for the subsequent connection and fixation.

[0051] Once the alignment block 32 and the fixing block 31 are properly engaged, i.e., the fixing block 31 is fully abutted against the alignment block 32, further connection and fixing operations begin. The protrusion 34 on the first fixed seat 33 on the worktable 1 supports the rotating component 35, allowing the rotating component 35 to rotate around the connection point with the protrusion 34. At the same time, the hanging rod 36 can also rotate on the rotating component 35.

[0052] The operator holds the rotating part 35 and rotates it, causing the hanging rod 36 to swing, so that one end of the hanging rod 36 can be hooked onto the hook block 38 on the second fixed seat 37 on the workbench.

[0053] After the connection is completed, rotate the rotating part 35 in the opposite direction to keep it horizontal. At this time, the hanging rod 36 is in a taut state. Through the engagement of the hanging rod 36 and the hook block 38, and the position locking of the rotating part 35, the worktable 1 and the worktable 2 are connected together.

[0054] Furthermore, a drive shaft 212 is connected between the bevel gears 25 of the clamping assembly 2 on the workbench 1 and the workbench 2. The drive shaft 212 is adapted to be connected to an external drive device so as to drive the two sets of clamping assemblies 2 to clamp the two sets of automobile water pump housings.

[0055] The drive shaft 212 enables the synchronous drive of the clamping assemblies 2 on the two worktables by external power, thereby completing the clamping of the two sets of automotive water pump housings. The external drive device provides rotational power to the drive shaft 212, which is connected to the bevel gears 25 on the two worktables' clamping assemblies 2. When the drive shaft 212 rotates, it drives the bevel gears 25 to rotate synchronously. According to the gear transmission principle, the rotation of the bevel gears 25 drives the chuck body 24, which meshes with them, to rotate. The spiral groove 26 on the chuck body 24 rotates with the chuck body 24, pushing the clamping block 27 that it meshes with to move linearly along the guide groove 29. When the chuck body 24 rotates clockwise, the clamping block 27 moves towards the center to clamp the automotive water pump housing; when it rotates counterclockwise, it releases. Since the drive shaft 212 is connected to the bevel gears 25 on both worktables, it ensures that the clamping assemblies 2 on the two worktables move synchronously, realizing the synchronous clamping of the two sets of car water pump housings. This not only improves work efficiency but also ensures the consistency and stability of clamping, providing a reliable foundation for subsequent processing.

[0056] The workbench of this application can be flexibly configured with multiple units according to production needs. Each workbench has an integrated connecting component 3 on both sides, with a positioning block 31 fixedly installed on one side and a corresponding matching alignment block 32 set on the other side. The plug-in socket structure enables fast and accurate positioning. At the same time, each workbench is equipped with a clamping component 2 for clamping the car water pump housing.

[0057] When multiple worktables are combined, the fixing block 31 and the alignment block 32 of adjacent worktables can be tightly fitted together to form a stable connection system. In conjunction with the internal transmission mechanism, it is possible to achieve synchronous clamping and release of multiple sets of automotive water pump housings, effectively improving processing efficiency and clamping accuracy, and meeting the high-efficiency collaborative needs of large-scale production.

[0058] Working principle: After the workpiece is placed on the placement plate 210 of the support plate 28, the external power source transmits power to the bevel gear 25. The bevel gear 25 meshes with the gear ring of the chuck body 24, causing the chuck body 24 to rotate. The spiral groove 26 on the chuck body 24 then rotates, pushing four sets of mutually perpendicular clamping blocks 27 to move synchronously towards the center along the guide groove 29, thereby clamping the car water pump housing. The flexible silicone pads on the clamping blocks 27 contact the workpiece surface before the rigid clamping blocks 27, using elastic deformation to avoid scratch damage. At the same time, the embedded pressure sensor monitors the contact pressure in real time and feeds the signal back to the PLC control system. When the pressure reaches the preset threshold, the system immediately stops the power source to ensure that the force applied by each clamping block 27 is uniform and appropriate.

[0059] In terms of multi-station collaboration, the modular worktable achieves rapid and accurate positioning through the interlocking of the fixing block 31 and the alignment block 32, and completes a stable connection with the help of the locking device. The drive shaft 212 passes through the bevel gears 25 of each station to ensure that multiple sets of fixture components 2 move synchronously and realize the unified clamping of multiple workpieces. The silicone anti-slip pad on the placement tray 210 further enhances the stability of the workpiece and avoids vibration interference.

[0060] Compared to traditional fixtures that require separate operation of screws to control the top ball and are difficult to ensure consistent clamping force, this fixture solves the problem of displacement and deformation of workpieces caused by uneven force through synchronous drive and pressure control. At the same time, this design improves clamping efficiency and meets the high-efficiency collaborative needs of large-scale production.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-station automobile water pump housing machining fixture, comprising a workbench (1), a fixture assembly (2), characterized in that: The clamp assembly (2) comprises a supporting part installed through the workbench (1), which is composed of a cover (21) and a cover (23), a bearing-mounted chuck body (24) is installed in the center through hole of the cover (23), the chuck body (24) has a gear ring, a bevel gear (25) is installed between the cover (23) and the cover (21) by bearings; The cover (23) is provided with a supporting disc (28), the chuck body (24) is provided with a spiral groove (26), four sets of clamping blocks (27) are arranged on the spiral groove (26), the clamping blocks (27) are provided with a rack (211), the supporting disc (28) is provided with a guide groove (29) for limiting the moving direction of the clamping blocks (27), the clamping blocks (27) are provided with a flexible pad, and the flexible pad is embedded with a pressure sensor; One side of the workbench (1) is provided with a workbench (2), the clamp assembly (2) is installed on the workbench (2), the connecting assembly (3) connected with the workbench (1) is installed on the workbench (2), and the bevel gears (25) of the two sets of clamp assemblies (2) are connected by a driving shaft (212) driven to rotate by an external device.

2. The multi-station machining fixture for an automobile water pump housing according to claim 1, characterized in that: The connecting assembly (3) comprises two sets of fixed blocks (31) installed on one side of the workbench (1) close to the workbench (2), and the workbench (2) is provided with a positioning block (32) which can be sleeved on the fixed blocks (31); The workbench (1) and the workbench (2) are connected and installed with a docking part, the docking part comprises a first fixed seat (33) installed on the workbench (1), a protruding part (34) is installed on one end of the first fixed seat (33), a rotating part (35) is rotatably installed on the protruding part (34), a hanging rod (36) is rotatably installed on the rotating part (35), a second fixed seat (37) is installed on the positioning block (32), a hooking block (38) is installed on the second fixed seat (37), and the hooking block (38) is adapted for use with the hooking block (38). The fixed block (31) is installed on the side of the workbench (1) close to the workbench (2), and the positioning block (32) is fixedly installed on the corresponding position of the workbench (2).

3. The multi-station machining fixture for an automobile water pump housing according to claim 2, characterized in that: The fixed block (31) and the positioning block (32) can be connected by fasteners.

4. The multi-station machining fixture for an automobile water pump housing according to claim 2, characterized in that: The supporting disc (28) is fixedly installed with a placing disc (210), and the placing disc (210) is fixedly installed with an anti-skid pad made of silica gel.

5. The multi-station machining fixture for an automobile water pump housing according to claim 4, characterized in that: The workbench can be flexibly configured with multiple sets according to production needs, each set of workbench is respectively integrated with a connecting assembly (3) on both sides, a positioning fixed block (31) is fixedly installed on one side, and a corresponding adaptive positioning block (32) is arranged on the other side. The plug-in sleeve structure is used to realize rapid and accurate positioning, each workbench is provided with a clamp assembly (2) for clamping the automobile water pump shell.

6. The multi-station machining fixture for an automobile water pump housing according to claim 1, characterized in that: The cover (21) and the cover (23) are both columnar structures.

7. The multi-station machining fixture for an automobile water pump housing according to claim 1, characterized in that: The cover (23) is fixed on the workbench (1), and the cover (21) is fixed with the cover (23) by a plurality of bolts (22).

8. The multi-station machining fixture for an automobile water pump housing according to claim 1, characterized in that: The four sets of clamping blocks (27) are arranged perpendicular to each other.

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