Clamping tool for milling pump shell forge piece

Abstract

The utility model discloses a clamping tool for milling a pump case forge piece, which comprises a containing plate, a clamping assembly is arranged on the top of the containing plate, the clamping assembly is arranged on one side of the containing plate, and the clamping assembly comprises two hydraulic cylinders fixedly arranged on one side of the outer wall of the top of the containing plate. The output ends of the two hydraulic cylinders are fixedly connected with the same extrusion frame, two symmetrically-arranged moving columns are placed in the extrusion frame, the ends, away from each other, of the two moving columns are each rotationally connected with an abutting plate, and the outer walls of the bottoms of the two moving columns are each rotationally connected with a gear; by arranging the clamping assembly, all positions of pump shell forgings of different sizes can be quickly limited, so that the pump shell forgings cannot move at will when being machined, multiple times of adjustment is not needed, and the pump shell forgings are more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of pump casing forging processing, in particular to a clamping tool for milling pump casing forgings. Background Art

[0002] The pump casing is an accessory attached to the pump body. A pump typically consists of an outlet, inlet, casing, and body. As the outer shell of the pump, the pump casing directs water to the impeller, collects the water flowing out of the impeller, converts most of the water's kinetic energy into pressure energy, and simultaneously connects all fixed parts. Milling is a crucial step in the machining of pump casing forgings, and clamping fixtures are key equipment for ensuring milling accuracy and efficiency.

[0003] After searching, the utility model with Chinese patent publication number CN214490281U discloses a processing and clamping tool for pump casing, including a tool body and a clamping mechanism, the outer wall of the tool body is fixed with a first positioning block, and the outer wall of the first positioning block is welded with a positioning mechanism, the inner wall of the slide groove is provided with a limit block, and the inner wall of the limit block is provided with a first threaded groove, the inner wall of the first threaded groove is fixed with a first threaded rod, the clamping mechanism is fixed on the upper and lower sides of the outer wall of the tool body, and the outer wall of the clamping mechanism is fixed with a third fixed block.

[0004] The above-mentioned device achieves clamping by separately manipulating multiple fixed blocks to approach the workpiece. Therefore, it takes a lot of time to operate during actual use, and the same is true for the disassembly process. It will inevitably affect the subsequent processing efficiency, and there is room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping tool for milling a pump casing forging, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a clamping tool for milling pump casing forgings, comprising a holding plate, a clamping assembly installed on the top of the holding plate, the clamping assembly being located on one side of the holding plate, the clamping assembly comprising two hydraulic cylinders fixedly installed on one side of the top outer wall of the holding plate, the two hydraulic cylinder output ends being fixedly connected to the same extrusion frame, two symmetrically arranged moving columns being placed inside the extrusion frame, the two moving columns being rotatably connected to an abutment plate at one end away from each other, the bottom outer walls of the two moving columns being rotatably connected to a gear, and the two gears being coaxially fixed to one end of the rotating shaft of the two abutment plates respectively.

[0007] As a further preferred embodiment of the present technical solution, two limit grooves 1 are provided on both sides of the top outer wall of the holding plate, and the limit groove 1 is perpendicular to the moving direction of the extrusion frame. The two limit grooves 1 on one side are slidably connected to the same rack, and a limit groove 2 is provided on the top outer wall of the rack, and the limit groove 2 is parallel to the moving direction of the extrusion frame, and the limit groove 2 is engaged with the gear.

[0008] As a further preferred embodiment of the present technical solution, a plurality of equally spaced through grooves are provided on the top outer wall of the extrusion frame, and the plurality of through grooves are parallel to the extrusion frame. Two pins are slidably inserted in the plurality of through grooves, and the two pins can pass through the movable column respectively.

[0009] The invention can quickly limit the positions of pump casing forgings of different sizes so that they will not be displaced at will during processing, and there is no need for multiple adjustments, which is more convenient to use. The pin is pulled out from the through groove, and then the moving column is pushed to make the abutment plate at its end close to the forging. Then the extrusion frame is passed through two of the through grooves and through the moving column. At this time, the position of the moving column will be fixed. Since the moving column slides in the limiting groove 2, and the limiting groove 2 is perpendicular to the moving direction of the moving column, the moving column can drive the rack to move synchronously along the limiting groove 1. Then, the raw material to be processed is placed on one side of the extrusion frame, and then the extrusion frame is driven by the hydraulic cylinder to move toward the baffle. At this time, the moving direction of the moving column is parallel to the limiting groove 2 and perpendicular to the limiting groove 1. The moving column will move along the limiting groove 2 but the rack will not move. The gear rotates clockwise under the meshing of the rack, and the gear is driven by the abutment plate to flip synchronously, and then the two abutment plates can abut the two sides of the raw material.

[0010] As a further preferred embodiment of the present technical solution, an adaption component is installed inside the holding plate, and the adaption component is located at the other side of the holding plate.

[0011] As a further preferred embodiment of the present technical solution, the adaptation component includes three mounting grooves opened on the top outer wall of the holding plate, a screw is rotatably connected to the inside of the middle mounting groove, and the three mounting grooves are slidably connected to the same baffle, and the baffle forms a transmission fit with the screw, and the other two mounting grooves are fixedly connected to a limit rod, and the baffle is slidably sleeved on the outside of the two limit rods, and a motor is fixedly installed on the outer wall of one side of the holding plate, and the output end of the motor is coaxially fixed with one end of the screw.

[0012] Start the motor on one side of the holding plate, and the output end of the motor drives the screw to rotate in the installation groove. The baffle restricted by the limit rod can only translate along it, and the screw can drive the baffle toward the direction of the raw material until the baffle and the outer wall of the other side of the raw material are in contact and stop. The adjustment is completed, which is beneficial to increase the adaptability of the device. Subsequently, the raw material only needs to be placed between the extrusion frame and the baffle, and the raw material can be restricted and fixed on all sides by driving the hydraulic cylinder.

[0013] As a further preferred embodiment of the present technical solution, the lead angle of the external thread of the screw rod is smaller than the equivalent friction angle.

[0014] As a further preferred embodiment of the present technical solution, two corner brackets are removed and installed on the outer walls at both ends of the holding plate, and the lower surfaces of the corner brackets are at the same level as the lower surface of the holding plate.

[0015] The utility model provides a clamping fixture for milling a pump casing forging, which has the following beneficial effects:

[0016] (1) The present invention can quickly limit the positions of pump casing forgings of different sizes by setting a clamping assembly, so that they will not be displaced arbitrarily during processing, and there is no need for multiple adjustments, which is more convenient to use. The pin is pulled out from the through groove, and then the movable column is pushed to make the abutment plate at its end close to the forging, and then the extrusion frame is passed through two of the through grooves and through the movable column. At this time, the position of the movable column will be fixed. Since the movable column slides in the limiting groove 2, and the limiting groove 2 is perpendicular to the moving direction of the movable column, the movable column can drive the rack to move synchronously along the limiting groove 1. Then, the raw material to be processed is placed on one side of the extrusion frame, and then the extrusion frame is driven by the hydraulic cylinder to move toward the baffle. At this time, the moving direction of the movable column is parallel to the limiting groove 2 and perpendicular to the limiting groove 1. The movable column will move along the limiting groove 2 but the rack will not move. The gear rotates clockwise under the meshing of the rack, and the gear is driven by the abutment plate to turn synchronously, and then the two abutment plates can abut the two sides of the raw material.

[0017] (2) The present invention starts the motor on one side of the holding plate by setting an adaptation component. The output end of the motor drives the screw to rotate in the installation groove. The baffle restricted by the limit rod can only move horizontally along it. The screw can drive the baffle toward the direction of the raw material until the baffle and the outer wall of the other side of the raw material are in contact and stop. The adjustment is completed, which is conducive to increasing the adaptability of the device. Subsequently, the raw material only needs to be placed between the extrusion frame and the baffle, and the raw material can be restricted and fixed on all sides by driving the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first perspective;

[0019] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0020] Figure 3 This is a partially enlarged structural diagram of the clamping assembly of the present invention;

[0021] Figure 4 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0022] In the figure: 1. Holding plate; 2. Angle code; 3. Clamping assembly; 4. Adaptive assembly; 301. Hydraulic cylinder; 302. Extrusion frame; 303. Moving column; 304. Abutment plate; 305. Gear; 306. Limiting slot 1; 307. Rack; 308. Limiting slot 2; 309. Through slot; 310. Pin; 401. Mounting slot; 402. Screw rod; 403. Limiting rod; 404. Baffle; 405. Motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 2 、 Figure 3 and Figure 4 As shown, in this embodiment, a clamping tool for milling a pump casing forging includes a holding plate 1, a clamping assembly 3 is installed on the top of the holding plate 1, and the clamping assembly 3 is located on one side of the holding plate 1. The clamping assembly 3 includes two hydraulic cylinders 301 fixedly installed on one side of the top outer wall of the holding plate 1, and the output ends of the two hydraulic cylinders 301 are fixedly connected to the same extrusion frame 302. Two symmetrically arranged moving columns 303 are placed inside the extrusion frame 302. The ends of the two moving columns 303 that are away from each other are both rotatably connected to an abutment plate 304, and the bottom outer walls of the two moving columns 303 are both rotatably connected to a gear 305. The two gears 305 are coaxially fixed to one end of the rotating shaft of the two abutment plates 304 respectively.

[0025] Two limit grooves 306 are provided on both sides of the top outer wall of the holding plate 1. The limit groove 1 306 is perpendicular to the moving direction of the extrusion frame 302. The two limit grooves 1 306 on one side are slidably connected to the same rack 307. The top outer wall of the rack 307 is provided with a limit groove 2 308. The limit groove 2 308 is parallel to the moving direction of the extrusion frame 302, and the limit groove 2 308 is engaged with the gear 305.

[0026] The top outer wall of the extrusion frame 302 is provided with a plurality of equally spaced through slots 309 , which are parallel to the extrusion frame 302 . Two latches 310 are slidably inserted into the through slots 309 , and the two latches 310 can pass through the movable column 303 respectively.

[0027] Pull out the latch 310 from the through slot 309, then push the moving column 303 so that the abutment plate 304 at its end is close to the forging, and then pass the extrusion frame 302 through two of the through slots 309 and through the moving column 303. At this time, the position of the moving column 303 will be fixed. Since the moving column 303 slides in the second limiting slot 308, and the second limiting slot 308 is perpendicular to the moving direction of the moving column 303, the moving column 303 can drive the rack 307 to move synchronously along the limiting slot 1 306. The raw material is placed on one side of the extrusion frame 302, and then the extrusion frame 302 is driven to move toward the baffle 404 by driving the hydraulic cylinder 301. At this time, the moving direction of the moving column 303 is parallel to the limiting groove 2 308 and perpendicular to the limiting groove 1 306. The moving column 303 will move along the limiting groove 2 308, but the rack 307 will not move. The gear 305 rotates clockwise under the engagement of the rack 307, and the gear 305 is driven by the abutment plate 304 to flip synchronously, and then the two abutment plates 304 can abut the two sides of the raw material.

[0028] like Figure 1 and Figure 2 As shown, an adaption component 4 is installed inside the holding plate 1 , and the adaption component 4 is located at the other side of the holding plate 1 .

[0029] The adaptation component 4 includes three mounting grooves 401 opened on the top outer wall of the holding plate 1, a screw rod 402 is rotatably connected to the inside of the middle mounting groove 401, and the three mounting grooves 401 are slidably connected to the same baffle 404, and the baffle 404 forms a transmission fit with the screw rod 402. The other two mounting grooves 401 are fixedly connected to a limit rod 403, and the baffle 404 is slidably sleeved on the outside of the two limit rods 403. A motor 405 is fixedly installed on the outer wall of one side of the holding plate 1, and the output end of the motor 405 is coaxially fixed with one end of the screw rod 402.

[0030] Start the motor 405 on one side of the holding plate 1, and the output end of the motor 405 drives the screw 402 to rotate in the installation groove 401. The baffle 404 restricted by the limit rod 403 can only translate along it, and the screw 402 can drive the baffle 404 toward the direction of the raw material until the baffle 404 and the outer wall of the other side of the raw material are in contact and stop, and the adjustment is completed, which is beneficial to increase the adaptability of the device. Subsequently, the raw material only needs to be placed between the extrusion frame 302 and the baffle 404, and the raw material can be restricted and fixed on all sides by driving the hydraulic cylinder 301.

[0031] like Figure 2 As shown, the lead angle of the external thread of the screw rod 402 is smaller than the equivalent friction angle, so that it has a self-locking property, thereby preventing the position of the baffle 404 from changing arbitrarily.

[0032] like Figure 1 and Figure 2 As shown, two corner brackets 2 are removed and installed on the outer walls at both ends of the holding plate 1. The lower surfaces of the multiple corner brackets 2 are at the same level as the lower surface of the holding plate 1. The bolts are passed through the corner brackets 2 and then threaded onto the external device to restrict the holding plate 1 to the external device.

[0033] The utility model provides a clamping fixture for milling pump casing forgings, and the specific working principle is as follows:

[0034] When the device is working, the position of the moving column 303 is adjusted according to the width of the forging. First, the pin 310 is pulled out of the through slot 309, and then the moving column 303 is pushed so that the abutment plate 304 at its end is close to the forging. Then the extrusion frame 302 is passed through two of the through slots 309 and through the moving column 303. At this time, the position of the moving column 303 will be fixed. Since the moving column 303 slides in the limiting slot 2 308, and the limiting slot 2 308 is perpendicular to the moving direction of the moving column 303, the moving column 303 can drive the rack 307 to move synchronously along the limiting slot 1 306. Then, the raw material to be processed is placed on one side of the extrusion frame 302, and then the extrusion frame 302 is driven by the hydraulic cylinder 301 to move toward the baffle 404. At this time, the moving direction of the moving column 303 is parallel to the limiting slot 2 308 and the limiting slot 1 30 6 is vertical, the moving column 303 will move along the limiting groove 2 308, but the rack 307 will not move. The gear 305 rotates clockwise under the meshing of the rack 307, and the gear 305 is driven by the abutment plate 304 to turn synchronously. Then the two abutment plates 304 can abut the two sides of the raw material, and the motor 405 on one side of the holding plate 1 is started. The output end of the motor 405 drives the screw rod 402 to rotate in the installation groove 401. The baffle 404 restricted by the limiting rod 403 can only move horizontally along it, and the screw rod 402 can drive the baffle 404 to approach the raw material until the baffle 404 and the outer wall of the other side of the raw material are fitted and stopped. The adjustment is completed, which is conducive to increasing the adaptability of the device. Subsequently, the raw material only needs to be placed between the extrusion frame 302 and the baffle 404, and the raw material can be restricted and fixed on all sides by driving the hydraulic cylinder 301.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping fixture for milling a pump casing forging, comprising a holding plate (1), characterized in that: A clamping assembly (3) is installed on the top of the holding plate (1), and the clamping assembly (3) is located on one side of the holding plate (1). The clamping assembly (3) includes two hydraulic cylinders (301) fixedly installed on one side of the top outer wall of the holding plate (1), and the output ends of the two hydraulic cylinders (301) are fixedly connected to the same extrusion frame (302). Two symmetrically arranged moving columns (303) are placed inside the extrusion frame (302), and the ends of the two moving columns (303) that are away from each other are both rotatably connected to an abutment plate (304), and the bottom outer walls of the two moving columns (303) are both rotatably connected to a gear (305), and the two gears (305) are coaxially fixed to one end of the rotating shaft of the two abutment plates (304).

2. The clamping fixture for milling a pump casing forging according to claim 1, characterized in that: Two limiting grooves (306) are provided on both sides of the top outer wall of the holding plate (1), and the limiting grooves (306) are perpendicular to the moving direction of the extrusion frame (302). The two limiting grooves (306) on one side are slidably connected to the same rack (307). The top outer wall of the rack (307) is provided with a limiting groove (308), and the limiting groove (308) is parallel to the moving direction of the extrusion frame (302), and the limiting groove (308) is engaged with the gear (305).

3. The clamping fixture for milling a pump casing forging according to claim 1, characterized in that: The top outer wall of the extrusion frame (302) is provided with a plurality of equally spaced through grooves (309), the plurality of through grooves (309) being parallel to the extrusion frame (302), and two latches (310) being slidably inserted into the plurality of through grooves (309), and the two latches (310) being capable of respectively passing through the movable column (303).

4. The clamping fixture for milling a pump casing forging according to claim 1, characterized in that: An adaption component (4) is installed inside the holding plate (1), and the adaption component (4) is located at the other side of the holding plate (1).

5. The clamping fixture for milling a pump casing forging according to claim 4, characterized in that: The adaption assembly (4) comprises three mounting grooves (401) provided on the top outer wall of the holding plate (1), a screw rod (402) being rotatably connected to the interior of the middle mounting groove (401), a baffle (404) being slidably connected to the interior of the three mounting grooves (401), the baffle (404) and the screw rod (402) forming a transmission fit, a limiting rod (403) being fixedly connected to the interior of each of the other two mounting grooves (401), the baffle (404) being slidably sleeved on the outside of the two limiting rods (403), a motor (405) being fixedly mounted on the outer wall of one side of the holding plate (1), the output end of the motor (405) being coaxially fixed with one end of the screw rod (402).

6. The clamping fixture for milling a pump casing forging according to claim 5, characterized in that: The lead angle of the external thread of the screw rod (402) is smaller than the equivalent friction angle.

7. The clamping fixture for milling a pump casing forging according to claim 1, characterized in that: Two corner brackets (2) are installed on the outer walls at both ends of the holding plate (1), and the lower surfaces of the corner brackets (2) are at the same level as the lower surface of the holding plate (1).

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