CN114378611A - Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method - Google Patents

Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method Download PDF

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Publication number
CN114378611A
CN114378611A CN202210136152.9A CN202210136152A CN114378611A CN 114378611 A CN114378611 A CN 114378611A CN 202210136152 A CN202210136152 A CN 202210136152A CN 114378611 A CN114378611 A CN 114378611A
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CN
China
Prior art keywords
positioning
balancing weight
component
machining
clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210136152.9A
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Chinese (zh)
Inventor
黎锋
易丽群
雷国荣
覃威威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guilin Fuda Alfin Large Crankshaft Co ltd
Original Assignee
Guilin Fuda Alfin Large Crankshaft Co ltd
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Application filed by Guilin Fuda Alfin Large Crankshaft Co ltd filed Critical Guilin Fuda Alfin Large Crankshaft Co ltd
Priority to CN202210136152.9A priority Critical patent/CN114378611A/en
Publication of CN114378611A publication Critical patent/CN114378611A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

The utility model discloses a tool clamp for machining the excircle and the lateral plane of a crankshaft balancing weight and a using method thereof, wherein the tool clamp comprises a bottom plate (1), a main support component (2), a fixing ring component (3) and a positioning component (4); the main bracket assembly (2) is fixedly arranged on the bottom plate (1) through a fixed ring assembly (3); the positioning component (4) is fixedly arranged on the main bracket component (2). The tool clamp and the use method can realize positioning of the assembly surface of the balancing weight, round positioning and limiting of the limiting pin hole, and clamping and positioning before machining of the balancing weight hole by locking the assembly pin hole through the bolt; the tool clamp can simultaneously clamp three balancing weight blanks and tightly fix the balancing weights in the tool through the locking function of the locking bolt, so that the purpose of finishing processing three balancing weights by one-time clamping is realized.

Description

Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method
Technical Field
The utility model belongs to the technical field of auxiliary machining equipment for crankshaft parts, and particularly relates to a tool clamp for machining the excircle and the lateral plane of a crankshaft seed matching block and a using method thereof.
Background
Because the crankshaft diameter is big, the length overlength, when the blank processing adopted upset forging shaping or forging die shaping, because the characteristics of crankshaft structure, the bent axle can't accomplish balancing weight and bent axle whole body shaping when the blank shaping. Because the crankshaft is not a uniform component, high vibration can be generated at high rotation speed, and the service life of the shaft is influenced by the vibration. Dynamic balancing is necessary to optimize the rotating machine and if not well balanced, momentum peaks occur and severe energy fractures. The crankshaft should have static balance and dynamic balance, and the counterweight is a concrete method for adjusting the static balance, and the balance aims to reduce the vibration amplitude and frequency of the crankshaft after the crankshaft rotates at high speed. Therefore, the counterweight is an important component of the crankshaft, and the crankshaft needs to be assembled with the counterweight in a finished product state and perform dynamic balance. Generally, a dynamic balancing machine test is carried out, materials are reduced at the position of a counterweight block of a crankshaft, and the purpose of reducing unbalance is achieved.
The counterweight block is processed by adopting the traditional processing equipment and method, can be realized by turning, milling, drilling, grinding and the like, and consumes a large amount of time in the circulation of workpiece clamping and replacing processes; meanwhile, the traditional processing method is single-piece circulation, the procedures are multiple, the flow is long, and the production cost is increased.
For example, chinese patent application No. 202022092595.1 discloses a clamp for processing an outer circle of an eccentric balance block of a crankshaft, which includes a front clamping sleeve and a rear clamping sleeve, wherein the front clamping sleeve and the rear clamping sleeve are respectively provided with a front fixing hole and a rear fixing hole which are recessed inwards, and the front clamping sleeve is also provided with a center hole, the center hole and the rear fixing hole are eccentrically arranged, and the eccentricity thereof is the same as the eccentricity of the outer circle of the eccentric balance block of the crankshaft; the front mounting clamping sleeve and the rear mounting clamping sleeve are also provided with fastening devices; when the device is used, the front clamping sleeve realizes positioning and fixing through the center hole and the center, the rear end realizes clamping and fixing through the chuck, the crankshaft is lifted through the eccentrically arranged center hole and the rear fixing hole, the circle center of the outer arc is reset to the position where the rotation axes of the device coincide, and further the outer arc is machined; not only greatly improves the processing efficiency and the processing precision, but also reduces the hardware cost.
Disclosure of Invention
The utility model aims to provide a tool clamp for machining the excircle and the lateral plane of a crankshaft matching block and a using method thereof, aiming at the defects in the prior art. The tool clamp disclosed by the utility model is simple in structure and strong in practicability, can realize that one set of clamp can simultaneously process the outer circles and the side planes of three balancing weights, greatly reduces the processing time, improves the production efficiency, and is suitable for popularization and application in mass industrial production.
The tool clamp and the use method can realize positioning of the assembly surface of the balancing weight, round positioning and limiting of the limiting pin hole, and clamping and positioning before machining of the balancing weight hole by locking the assembly pin hole through the bolt; the tool clamp can simultaneously clamp three balancing weight blanks and tightly fix the balancing weights in the tool through the locking function of the locking bolt, so that the purpose of finishing processing three balancing weights by one-time clamping is realized.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a tool clamp for machining the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate, a main support assembly, a fixed ring assembly and a positioning assembly; the main bracket assembly is fixedly arranged on the bottom plate through a fixing ring assembly; the positioning assembly is fixedly arranged on the main bracket assembly.
The bottom plate is a quadrilateral flat plate and is mainly used for installing the main support assembly and the fixing ring assembly and simultaneously realizing the connection of the whole set of tool clamp and the machine tool workbench.
As a further explanation of the present invention, the main support assembly is a main body structure, 3 reference planes for assembling the positioning assembly are processed on the side surface of the main support assembly, and the 3 reference planes are axially symmetrically and uniformly distributed, and the included angles between the 3 reference planes are 135 °, 135 ° and 90 ° respectively; each datum plane is provided with a positioning component.
As a further explanation of the present invention, 3 positioning assemblies are provided above, and are respectively and fixedly mounted on the reference plane of the main bracket assembly; the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
As a further explanation of the utility model, the positioning assembly is provided with a positioning pin and a bolt for locking a balancing weight; the front end of the positioning pin is provided with an inner pin hole; the inner pin hole is matched with the bolt.
The positioning assembly realizes positioning of the positioning surface and the pin hole of the balancing weight, and simultaneously adopts locking of the bolt to lock the balancing weight workpiece on the clamp.
As a further explanation of the utility model, the balancing weight is provided with a pin hole matched with the positioning pin.
As a further explanation of the utility model, the positioning pin on the positioning assembly is provided with 2 positioning pins, and the central connecting line of the two positioning pins is perpendicular to the axis of the machine tool.
The positioning assembly is provided with a pin hole positioning pin and a balancing weight locking bolt; the main effect is with balancing weight location fit, fixes a position through two pinholes of balancing weight simultaneously, guarantees that the central line perpendicular to lathe axis of two pinholes of balancing weight, and the lateral plane is perpendicular with the bottom plate when guaranteeing simultaneously that the balancing weight is installed on anchor clamps to adopt two locking bolt locking and fixed balancing weight.
As a further explanation of the present invention, the fixing ring assembly is fixed to the base plate by bolts after being installed at the bottom of the main bracket assembly.
The fixed ring assembly 1 is sleeved with 2 pieces, and the combined fixed ring assembly is arranged at the bottom of the main support assembly and serves as a base of the main support assembly and is fixed on the bottom plate through bolts.
As a further illustration of the utility model, the top of the main bracket assembly is provided with a hoisting ring. The hoisting ring is used for assembling, disassembling and moving the tool clamp.
The utility model also provides a use method of the tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block, which comprises the following steps:
step one, processing preparation: selecting a tooling clamp with a corresponding model according to the variety and model of the balancing weight, and installing the whole tooling clamp on a workbench of the machining equipment through a bottom plate;
step two, clamping a workpiece: when the first positioning assembly is rotated to the clamping position of the balancing weight, the bolts on the positioning assembly are taken out, the positioning surface of the balancing weight which is processed in the previous procedure is aligned with the positioning assembly, the pin holes are aligned with the positioning pins and are seamlessly loaded, the bolts are loaded and are respectively pre-tightened, two bolts are respectively locked by a torque wrench according to fixed torque, the clamping of the balancing weight is completed, the locking device is loosened, the second positioning assembly and the third positioning assembly are respectively sequentially rotated to the clamping position of the balancing weight, three balancing weights are respectively loaded according to the mode, and the clamping of a workpiece is completed;
step three, processing the workpiece: starting a machining program, turning the tool clamp to a machining station, machining the side plane of each balancing weight by using a plane milling cutter in the sequence from the first, second and third steps, and after one balancing weight is machined, clockwise rotating the tool clamp to the side face of the next balancing weight to respectively machine the side planes of the three balancing weights on the same side; changing the rotation direction of the clamp, rotating the clamp in the anticlockwise direction, and respectively finishing the processing of the planes on the other sides of the three balancing weights; changing an outer circle milling cutter, processing the outer circle of the balancing weight according to the third, second and first sequences, then respectively processing the outer circle chamfer of the balancing weight, finishing the processing of the process after finishing the chamfer processing, and returning the tool clamp to the clamping station of the balancing weight;
step four, taking a piece: according to the sequence of the first, the second and the third, the tool clamp respectively rotates the positioning assembly to a counterweight block taking position, respectively loosens the locking bolts of the counterweight block in sequence, takes out the counterweight hole and hangs out; and taking out the three balancing weights, respectively cleaning burrs and inspecting, and then circulating to perform next procedure processing.
The utility model has the advantages that:
1. the tool clamp disclosed by the utility model is simple in structure, low in manufacturing cost and high in machining efficiency of equipment, and the capacity of machining three balancing weights by one-time clamping is realized; the machining process of the balance weight is reduced, the fixture is matched with another set of fixture (the fixture for machining the positioning surface and the assembling hole of the crankshaft balance weight) for use, and the machining process of all the balance weights is completed through two procedures.
2. The tooling clamp disclosed by the utility model can ensure high product precision, the precision of the processed product meets the requirement of the product, and the self-control processing of the balancing weight is realized.
3. Compared with the traditional machining mode, the machining mode of the tool clamp greatly reduces the machining process, only two procedures are needed, and the machining process of all the balancing weights is completed on the same equipment.
4. The tool clamp disclosed by the utility model can be used for simultaneously processing three balancing weights at one time in a using and processing mode, the production takt is high, the processing of one balancing weight can be completed within ten minutes, and the production efficiency is high.
Drawings
Fig. 1 is a schematic front view of the overall structure of an apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3 is a schematic structural diagram of a counterweight block processed according to an embodiment of the present invention (the thick solid line in the diagram is the processed portion-outer circle implemented by the present invention).
Fig. 4 is a schematic plan view of fig. 3 (thick solid line in the figure indicates a processing portion-side plane in the present invention).
Reference numerals: 1-bottom plate, 2-main bracket component, 3-fixed ring component, 4-positioning component and 5-counterweight block.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Example 1:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2.
Example 2:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2.
As shown in fig. 2, the main support component 2 is a main body structure, 3 reference planes for assembling the positioning component 4 are processed on the side surface of the main support component 2, and the 3 reference planes are uniformly distributed in an axisymmetric manner, and the included angles between the 3 reference planes are 135 degrees, 135 degrees and 90 degrees, respectively; one locating component 4 is mounted on each reference plane. The number of the positioning assemblies 4 is 3, and the positioning assemblies are respectively and fixedly arranged on the reference plane of the main bracket assembly 2; the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
Example 3:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2.
As shown in fig. 2, the main support component 2 is a main body structure, 3 reference planes for assembling the positioning component 4 are processed on the side surface of the main support component 2, and the 3 reference planes are uniformly distributed in an axisymmetric manner, and the included angles between the 3 reference planes are 135 degrees, 135 degrees and 90 degrees, respectively; one locating component 4 is mounted on each reference plane. The number of the positioning assemblies 4 is 3, and the positioning assemblies are respectively and fixedly arranged on the reference plane of the main bracket assembly 2; the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
As shown in fig. 1, a positioning pin and a bolt for locking a counterweight 5 are arranged on the positioning component 4; the front end of the positioning pin is provided with an inner pin hole; the inner pin hole is matched with the bolt. The locating pins on the locating component 4 are provided with 2 locating pins, and the central connecting line of the two locating pins is perpendicular to the axis of the machine tool.
Example 4:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2.
As shown in fig. 2, the main support component 2 is a main body structure, 3 reference planes for assembling the positioning component 4 are processed on the side surface of the main support component 2, and the 3 reference planes are uniformly distributed in an axisymmetric manner, and the included angles between the 3 reference planes are 135 degrees, 135 degrees and 90 degrees, respectively; one locating component 4 is mounted on each reference plane. The number of the positioning assemblies 4 is 3, and the positioning assemblies are respectively and fixedly arranged on the reference plane of the main bracket assembly 2; the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
As shown in fig. 1, a positioning pin and a bolt for locking a counterweight 5 are arranged on the positioning component 4; the front end of the positioning pin is provided with an inner pin hole; the inner pin hole is matched with the bolt. The locating pins on the locating component 4 are provided with 2 locating pins, and the central connecting line of the two locating pins is perpendicular to the axis of the machine tool.
As shown in fig. 3 and 4, the weight 5 has a pin hole matching with the positioning pin.
Example 5:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2. The fixing ring component 3 is installed at the bottom of the main bracket component 2 and fixed on the bottom plate 1 through bolts.
Example 6:
a frock clamp for processing the excircle and the lateral plane of a crankshaft balancing weight comprises a bottom plate 1, a main support component 2, a fixing ring component 3 and a positioning component 4; the main bracket assembly 2 is fixedly arranged on the bottom plate 1 through a fixed ring assembly 3; the positioning component 4 is fixedly arranged on the main bracket component 2.
As shown in fig. 2, the main support component 2 is a main body structure, 3 reference planes for assembling the positioning component 4 are processed on the side surface of the main support component 2, and the 3 reference planes are uniformly distributed in an axisymmetric manner, and the included angles between the 3 reference planes are 135 degrees, 135 degrees and 90 degrees, respectively; one locating component 4 is mounted on each reference plane. The number of the positioning assemblies 4 is 3, and the positioning assemblies are respectively and fixedly arranged on the reference plane of the main bracket assembly 2; the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
As shown in fig. 1, a positioning pin and a bolt for locking a counterweight 5 are arranged on the positioning component 4; the front end of the positioning pin is provided with an inner pin hole; the inner pin hole is matched with the bolt. The locating pins on the locating component 4 are provided with 2 locating pins, and the central connecting line of the two locating pins is perpendicular to the axis of the machine tool.
As shown in fig. 3 and 4, the weight 5 has a pin hole matching with the positioning pin.
As shown in fig. 1 and 2, the top of the main support assembly 2 is provided with a lifting ring.
The use method of the tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block in the embodiment 1 to the embodiment 6 comprises the following steps:
step one, processing preparation: selecting a tooling clamp with a corresponding model according to the variety and model of the balancing weight 5, and installing the whole tooling clamp on a workbench of the machining equipment through the bottom plate 1;
step two, clamping a workpiece: when the first positioning component 4 is rotated to the clamping position of the counterweight 5, the bolts on the positioning components 4 are taken out, the positioning surface of the counterweight 5 which is processed in the previous process is aligned with the positioning components 4, the pin holes are aligned with the positioning pins and are seamlessly installed, the bolts are installed and respectively pre-tightened, two bolts are respectively locked by a torque wrench according to fixed torque, the clamping of the counterweight 5 is completed, the locking devices are loosened, the second and third positioning components 4 are respectively sequentially rotated to the clamping position of the counterweight 5, three counterweights 5 are respectively installed according to the mode, and the workpiece clamping is completed;
step three, processing the workpiece: starting a machining program, turning the tool clamp to a machining station, machining the side plane of each balancing weight 5 by using a plane milling cutter in the sequence from the first, second and third steps, and after one balancing weight is machined, clockwise rotating the tool clamp to the side face of the next balancing weight 5 to respectively machine the side planes of the same sides of the three balancing weights; changing the rotation direction of the clamp, rotating the clamp in the anticlockwise direction, and respectively finishing the processing of the planes on the other sides of the three balancing weights; changing an outer circle milling cutter, processing the outer circle of the balancing weight 5 according to the third, second and first sequences, then respectively processing the outer circle chamfer of the balancing weight 5, finishing the processing of the process after finishing the chamfer processing, and returning the tool clamp to the clamping station of the balancing weight 5;
step four, taking a piece: according to the sequence of the first, the second and the third, the tool clamp respectively rotates the positioning component 4 to a counterweight block taking position, respectively loosens the locking bolts of the counterweight block 5 in sequence, takes out the counterweight hole 5 and hangs out; and taking out the three balancing weights 5, respectively removing burrs and inspecting, and then circulating to perform next procedure processing.
It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the practice of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; this is not necessary, nor exhaustive, of all embodiments; and obvious variations or modifications of the utility model may be made without departing from the scope of the utility model.

Claims (9)

1. The utility model provides a processing bent axle balancing weight excircle and side plane's frock clamp which characterized in that: comprises a bottom plate (1), a main bracket component (2), a fixing ring component (3) and a positioning component (4); the main bracket assembly (2) is fixedly arranged on the bottom plate (1) through a fixed ring assembly (3); the positioning component (4) is fixedly arranged on the main bracket component (2).
2. The tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 1, characterized in that: the main support component (2) is of a main body structure, 3 datum planes for assembling and positioning components (4) are machined on the side face of the main support component (2), the 3 datum planes are in axisymmetric and uniform distribution, and included angles among the 3 datum planes are 135 degrees, 135 degrees and 90 degrees respectively; each reference plane is provided with a positioning component (4).
3. The tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 2, characterized in that: the number of the positioning assemblies (4) is 3, and the positioning assemblies are respectively and fixedly arranged on the reference plane of the main bracket assembly (2); the 3 positioning assemblies are uniformly distributed in an axisymmetric manner, and included angles among the 3 positioning assemblies are 135 degrees, 135 degrees and 90 degrees respectively.
4. The tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 3, characterized in that: the positioning component (4) is provided with a positioning pin and a bolt for locking the balancing weight (5); the front end of the positioning pin is provided with an inner pin hole; the inner pin hole is matched with the bolt.
5. The tooling clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 4, characterized in that: the balancing weight (5) is provided with a pin hole matched with the positioning pin.
6. The tooling clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 5, characterized in that: the number of the positioning pins on the positioning assembly (4) is 2, and the central connecting line of the two positioning pins is perpendicular to the axis of the machine tool.
7. The tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 1, characterized in that: the fixed ring assembly (3) is installed at the bottom of the main bracket assembly (2) and then fixed on the bottom plate (1) through bolts.
8. The tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block according to claim 1, characterized in that: the top of the main bracket component (2) is provided with a hoisting ring.
9. The use method of the tool clamp for machining the excircle and the lateral plane of the crankshaft counterweight block as in claims 1 to 8 is characterized by comprising the following steps:
step one, processing preparation: selecting a tooling clamp with a corresponding model according to the variety and model of the balancing weight (5), and installing the whole tooling clamp on a workbench of the machining equipment through the bottom plate (1);
step two, clamping a workpiece: when the first positioning component (4) is rotated to the clamping position of the balancing weight (5), the bolts on the positioning component (4) are taken out, the positioning surface of the balancing weight (5) which is processed in the previous process is aligned with the positioning component (4), the pin holes are aligned with the positioning pins and seamlessly loaded, the bolts are loaded and respectively pre-tightened, two bolts are respectively locked by a torque wrench according to fixed torque, the clamping of the balancing weight (5) is completed, the locking devices are loosened, the second positioning component (4) and the third positioning component (4) are respectively sequentially rotated to the clamping position of the balancing weight (5), three balancing weights (5) are respectively loaded according to the mode, and the workpiece clamping is completed;
step three, processing the workpiece: starting a machining program, turning the tool clamp to a machining station, machining the side plane of each balancing weight (5) by using a plane milling cutter in the sequence from the first, second and third steps, and after one balancing weight is machined, clockwise rotating the tool clamp to the side face of the next balancing weight (5) to respectively machine the side planes of the same sides of the three balancing weights; changing the rotation direction of the clamp, rotating the clamp in the anticlockwise direction, and respectively finishing the processing of the planes on the other sides of the three balancing weights; changing the outer circle milling cutter, processing the outer circle of the balancing weight (5) according to the third, second and first sequences, then respectively processing the outer circle chamfer of the balancing weight (5), completing the processing of the process after the chamfer processing is completed, and returning the tool clamp to the clamping station of the balancing weight (5);
step four, taking a piece: according to the sequence of the first, the second and the third, the tool clamp respectively rotates the positioning component (4) to a counterweight block taking position, respectively loosens the locking bolts of the counterweight block (5) in sequence, takes out the counterweight hole (5) and hangs out; and taking out the three balancing weights (5), and circulating to perform next procedure processing after deburring and checking respectively.
CN202210136152.9A 2022-02-15 2022-02-15 Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method Pending CN114378611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210136152.9A CN114378611A (en) 2022-02-15 2022-02-15 Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210136152.9A CN114378611A (en) 2022-02-15 2022-02-15 Tool clamp for machining excircle and side plane of crankshaft balancing weight and using method

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Publication Number Publication Date
CN114378611A true CN114378611A (en) 2022-04-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115156969A (en) * 2022-06-06 2022-10-11 海盐精斌五金制品有限公司 Automatic machining and forming process for plane tooth plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115156969A (en) * 2022-06-06 2022-10-11 海盐精斌五金制品有限公司 Automatic machining and forming process for plane tooth plate
CN115156969B (en) * 2022-06-06 2024-02-06 海盐精斌五金制品有限公司 Automatic machining and forming process for planar dental plate

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