CN210756573U - Machining four-axis bridge plate clamp for special-shaped asymmetric rear axle end plate - Google Patents
Machining four-axis bridge plate clamp for special-shaped asymmetric rear axle end plate Download PDFInfo
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- CN210756573U CN210756573U CN201921210710.1U CN201921210710U CN210756573U CN 210756573 U CN210756573 U CN 210756573U CN 201921210710 U CN201921210710 U CN 201921210710U CN 210756573 U CN210756573 U CN 210756573U
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- rear axle
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Abstract
The utility model discloses a four-axis bridge plate anchor clamps of machine tooling of special-shaped asymmetric rear axle end plate, including the bridge plate main part, an organic whole is provided with the oil circuit in the bridge plate main part, the lower surface of bridge plate main part be provided with the oil circuit cab apron of oil circuit intercommunication, be located the upper surface of bridge plate main part is arranged and is had positioning mechanism and sequence valve, positioning assembly include thick spacing subassembly, location compress tightly subassembly and auxiliary stay compress tightly the subassembly, through the bridge plate main part, sequence valve and the positioning mechanism cooperation, accomplish the clamp of work piece, this product adopts above mechanism, has reduced the positioning error that the change of blank face brought; the problem of inaccurate positioning caused by large tolerance of the hole diameter of the blank is solved; the risk that the special-shaped asymmetric end plate turns on one side before being compressed is eliminated; the problems of cutter vibration and the like at the positions of a boss, a rib arm and the like extending out of the special-shaped asymmetric end plate are solved; the clamping times of the workpiece are reduced, and the size precision of the workpiece is improved.
Description
Technical Field
The utility model relates to a frock clamp technical field especially relates to a machine tooling four-axis axle plate anchor clamps of dysmorphism asymmetric rear axle end plate.
Background
The clamp is used for fixing a processing object in a mechanical manufacturing process to enable the processing object to occupy a correct position so as to receive construction or detection, and in the prior art, the following three positioning modes are mostly adopted for processing end plates: one side is two pins, one side is three points, one side is one line and one point, the locating surface and the hole are not blanks generally, and the workpiece and the clamp are symmetrical. The positioning modes have certain defects, and for end plate parts needing to be positioned by using the blank surface, the direct surface positioning can cause the problems that the size of each machining content is unstable relative to the blank, and partial machined surface black scars can be caused in serious cases, or the dimensional accuracy can be ensured only by dividing a plurality of working procedures and carrying out rough machining and finish machining; for the end plate type parts needing to be positioned by the blank holes, the positioning round pins are directly used, so that the parts cannot be reliably positioned; for the end plates with asymmetric shapes and the extended bosses, rib arms and the like, when in processing, the cutter is easy to shake, so that the quality of workpieces is poor; for the processing contents which are distributed in a space in a multi-angle mode, the processing contents can be processed only by being clamped for many times and divided into a plurality of procedures.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art, provide a positioning error who reduces the change of blank face and bring, improve the location accuracy, improve the machining four-axis bridge plate anchor clamps of the asymmetric rear axle end plate of dysmorphism of work piece size precision.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a machine tooling four-axis bridge plate anchor clamps of special-shaped asymmetric rear axle end plate, includes the bridge plate main part, an organic whole is provided with the oil circuit in the bridge plate main part, the lower surface of bridge plate main part be provided with the oil circuit of oil circuit intercommunication crosses the cab apron, is located positioning mechanism and sequence valve have been arranged to the upper surface of bridge plate main part, positioning mechanism include thick spacing subassembly, location compress tightly the subassembly and the auxiliary stay compresses tightly the subassembly, through the bridge plate main part sequence valve and positioning mechanism cooperate, accomplish the clamp of work piece and press from both sides tightly.
In the above technical solution, the two sets of positioning mechanisms are symmetrically arranged on the upper surface of the bridge plate main body 1.
In the technical scheme, the positioning and pressing assembly comprises a plane positioning supporting nail, a screwing direction positioning part, a floating taper pin part, a main pressing cylinder and a spring pre-pressing part.
In the technical scheme, the floating taper pin part is arranged in the middle of each part in the positioning mechanism, the number of the main pressing cylinders is two, the main pressing cylinders are symmetrically arranged on two sides of the periphery of the floating taper pin part, the spring pre-pressing part and the turning positioning part are respectively arranged on two sides of one main pressing cylinder, the number of the plane positioning supporting nails is three, the plane positioning supporting nails are distributed in three lateral directions of the floating taper pin part in a triangular shape, and the two plane positioning supporting nails are respectively arranged under the main pressing cylinders.
In the technical scheme, the auxiliary supporting and pressing assembly comprises an auxiliary supporting cylinder, an auxiliary pressing cylinder, a rotary auxiliary supporting mechanism and an auxiliary jacking mechanism, the auxiliary supporting cylinder and the auxiliary pressing cylinder are arranged on the same side of the floating taper pin part in a point-to-point manner, and the rotary auxiliary supporting mechanism and the auxiliary jacking mechanism are coaxially arranged on the other side of the floating taper pin part, which is opposite to the auxiliary supporting cylinder.
In the above technical scheme, the coarse limiting component comprises a coarse limiting part and a spring supporting part.
In the above technical scheme, the number of the coarse limiting parts is 3, and the coarse limiting parts are respectively and correspondingly arranged on one side of the main pressing cylinder and one side of the auxiliary pressing cylinder.
In the above technical solution, the coarse position-limiting portion is a position-limiting pin.
In the above technical scheme, the lower surface of the bridge plate main body is provided with the support legs.
Compared with the prior art, the utility model discloses following beneficial effect has: the product adopts three plane positioning support nails to finish the plane positioning of the blank, thereby reducing the positioning error caused by the change of the blank surface; the product adopts the floating taper pin to complete the positioning of the blank hole, and solves the problem of inaccurate positioning caused by large tolerance of the hole diameter of the blank hole; the product is additionally provided with the spring support at the positioning plane of the end plate blank, so that the risk of side turning of the special-shaped asymmetric end plate before the special-shaped asymmetric end plate is not pressed is eliminated; the product is additionally provided with an auxiliary supporting cylinder and an auxiliary pressing cylinder at the positioning plane of the end plate blank, so that the positioning rigidity is enhanced; the product is provided with a rotary auxiliary support and an auxiliary jacking mechanism on a boss part extending out of the end plate, so that the problems of large machining allowance, cutter vibration and the like at the position are solved; this product is through digging at the bridge bottom and keeping away the sword hole, combines the fourth shaft revolving stage of equipment, reaches the purpose of processing the end plate back content from the bridge bottom, makes all processing contents can concentrate on one process and accomplish, reduces the clamping number of times, improves the size precision of work piece.
Drawings
Fig. 1 is a schematic view of the structure and the assembly relationship of the workpiece.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
FIG. 3 is a schematic view of the lower surface of the main body of the bridge plate.
FIG. 4 is a schematic cross-sectional view of the rough limiting portion.
FIG. 5 is a cross-sectional view of the spring support.
FIG. 6 is a cross-sectional view of the floating taper pin portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, a machine tooling four-axis bridge plate anchor clamps of dysmorphism asymmetric rear axle end plate, including bridge plate main part 1, an organic whole is provided with the oil circuit in the bridge plate main part 1, the lower surface of bridge plate main part is provided with the oil circuit that communicates with the oil circuit and crosses cab apron 2, the upper surface that is located bridge plate main part 1 has arranged positioning mechanism and sequence valve 3, positioning mechanism has arranged two sets ofly, including thick spacing subassembly, location compresses tightly subassembly and auxiliary stay and compresses tightly the subassembly, through bridge plate main part 1, sequence valve 3 and the cooperation of positioning mechanism, accomplish the clamp of work piece and press from both sides tightly.
The positioning and pressing assembly comprises plane positioning supporting nails 41, a turning positioning part 42, floating taper pin parts 43, main pressing cylinders 44 and a spring pre-pressing part 45, the floating taper pin parts 43 are arranged in the middle of each part in the positioning mechanism, the main pressing cylinders 44 are arranged in two and are symmetrically arranged on two sides of the periphery of the floating taper pin parts 43, the spring pre-pressing part 45 and the turning positioning part 42 are respectively arranged on two sides of one main pressing cylinder 44, the plane positioning supporting nails 41 are three and are distributed in three side directions of the floating taper pin parts 43 in a triangular shape, the two plane positioning supporting nails 41 are respectively arranged under the main pressing cylinders 44, the auxiliary supporting and pressing assembly comprises auxiliary supporting cylinders 51, auxiliary pressing cylinders 52, turning auxiliary supporting mechanisms 53 and auxiliary jacking mechanisms 54, the auxiliary supporting cylinders 51 and the auxiliary pressing cylinders 52 are arranged on the same side of the floating taper pin parts 43 in a point-to point manner, the screwing direction auxiliary supporting mechanism 53 and the auxiliary jacking mechanism 54 are coaxially arranged on the other side of the floating taper pin part 43 relative to the auxiliary supporting cylinder 51, the coarse limiting assembly comprises a coarse limiting part 61 and a spring supporting part 62, the coarse limiting part 61 is provided with 3 parts which are respectively and correspondingly arranged on one side of the main pressing cylinder 44 and one side of the auxiliary pressing cylinder 52, the coarse limiting part 61 is a limiting pin, and the lower surface of the bridge plate main body 1 is provided with support legs 7.
The bridge plate main body is arranged on a fourth shaft turntable L plate of the vertical three-shaft machining center through a bolt and a cylindrical pin, and an oil way is distributed in the bridge plate main body; the 2 oil passages are arranged at the bottom of the bridge plate main body by bolts, and oil passages are distributed inside the bridge plate main body. The bottom of the bridge plate main body is provided with 4 support legs, so that the clamp can be placed on a plane when being detached from the equipment, because the workpieces are symmetrical left and right, the product is divided into two stations, the structures of the two stations are correspondingly symmetrical, the left side is provided with a left workpiece, and the right side is provided with a right workpiece.
Referring to fig. 4 to 6, in the auxiliary supporting and pressing assembly, 3 coarse limiting components are mounted on the front face of the bridge plate main body through coarse limiting pin seats 63 by bolts; the bottom of the coarse limit pin is provided with a threaded hole and is fixed on a coarse limit pin seat by a bolt, and 2 spring supporting parts are arranged on the front surface of the bridge plate main body by the bolt through a spring supporting seat; the spring support part 62 is a spring support pin and is arranged in the spring support base 63, and the bottom of the spring support part is provided with a spring 64; in the positioning and pressing assembly, 1 turning positioning part is fixed on the front surface of the bridge plate main body through a turning positioning support by a bolt, and a turning positioning support nail is locked on the turning positioning support by a nut; the floating taper pin parts 43 are fixed on the front face of the bridge plate main body through taper pin seats 46 by bolts, the connecting rods 47 are installed in the taper pin seats, and the floating taper pin parts 43 are fixed with the connecting rods 47 through bolts; a spring 48 is arranged in the taper pin seat; 2 main compression cylinders are arranged on the front surface of the bridge plate main body by bolts; 1, fixing a pre-compression part of a spring on the front surface of the main body of the bridge plate through a pre-compression bracket by using a bolt, and screwing a plunger of a ball head of the spring on the pre-compression bracket; in the auxiliary supporting and pressing assembly, 1 auxiliary supporting cylinder is screwed on the front side of a bridge plate main body, 1 auxiliary pressing cylinder is fixed on the front side of the bridge plate main body through a bolt, 1 turning auxiliary supporting mechanism is fixed on the front side of the bridge plate main body from the back side through an auxiliary supporting seat through a bolt, oil circuit holes are distributed in the turning auxiliary supporting mechanism, and the supporting cylinder of the turning auxiliary supporting mechanism is screwed on a turning auxiliary supporting cylinder seat; the 1 auxiliary jacking mechanism is fixed on the front face of the bridge plate main body from the back face through an auxiliary jacking cylinder seat by using bolts, oil way holes are distributed in the auxiliary jacking mechanism, and the auxiliary jacking cylinder is screwed on the auxiliary jacking cylinder seat.
The working principle of the technical scheme is as follows: the power source is hydraulic oil of a hydraulic station configured in the machining center, the hydraulic oil flows to an oil inlet of the bridge plate main body through the fourth shaft, flows to each hydraulic element through an oil circuit system formed by the bridge plate main body and the oil circuit transition plate, flows to the oil circuit system formed by the bridge plate main body and the oil circuit transition plate through each hydraulic element, and flows back to the hydraulic station through the fourth shaft. The machining center program controls the electromagnetic directional valves of the hydraulic station to change direction to change the oil inlet and return of each loop, so that the work and return of each hydraulic element on the clamp can be controlled.
The method comprises the following operation steps: an operator blows scrap iron on the fixture completely by using an air gun, places a left part on 3 plane positioning support nails of a left station according to the positions of 3 coarse limit pins, a blank hole in the middle is aligned with a floating taper pin, and a pre-compression part can enable a workpiece to abut against a rotating positioning support. 3 thick spacer pins can prevent the wrong assembly of the left and right parts of the workpiece, can also enable the workpiece to be installed to have approximate direction prejudgment, and reduce the time for installing the workpiece. The right part is arranged on the right side according to the same method, and the positioning of the left part and the right part on the clamp is completed at the moment; a starting button of the machining center is pressed, a first loop of the program control hydraulic station is switched on in the forward direction, and 2 main compression cylinders work and compress in the enclosure of 3 plane positioning supporting nails. And the program then controls a second loop of the hydraulic station to be switched on in the forward direction, the auxiliary supporting cylinder and the rotary auxiliary supporting cylinder work, after the second loop contacts the workpiece, the pressure rises to the rated pressure of the sequence valve to switch on the sequence valve, and the auxiliary pressing cylinder and the auxiliary jacking cylinder work to press the workpiece. At the moment, the workpiece is compressed; the program then controls each cutter to process the front surface of the workpiece; controlling a fourth shaft turntable by a program to drive the clamp to rotate 90 degrees, and starting to process the content of the workpiece in the 90-degree direction; controlling a fourth shaft turntable by a program to drive the clamp to rotate for 90 degrees continuously, and starting to process the content on the back of the workpiece; after the machining is finished, the fourth shaft rotary table is controlled by a program to drive the clamp to rotate to the angle when the clamp clamps the workpiece; reversing valves of two loops of the program control hydraulic station are reversed to enable all cylinders to return and loosen workpieces, and an operator blows clean scrap iron by an air gun, then takes down the machined workpieces and enters the next cycle.
The product effectively reduces the positioning error of the end plate products positioned by the blank plane and the blank holes. Effectively strengthened the rigidity of anchor clamps location, solved the shake sword problem. The risk that the special-shaped asymmetric end plate turns on one side before being compressed is eliminated. The product can realize one-time clamping to finish the processing contents of all angles, and the size precision of the workpiece is improved.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the present invention through logic analysis, reasoning or limited experiments based on the prior art are intended to be within the scope of protection defined by the claims.
Claims (9)
1. The utility model provides a machine tooling four-axis bridge plate anchor clamps of asymmetric rear axle end plate of dysmorphism, includes bridge plate main part (1), its characterized in that, an organic whole is provided with the oil circuit in bridge plate main part (1), the lower surface of bridge plate main part be provided with cab apron (2) are crossed to the oil circuit of oil circuit intercommunication, are located positioning mechanism and sequence valve (3) have been arranged to the upper surface of bridge plate main part (1), positioning mechanism include thick spacing subassembly, location compress tightly the subassembly and the auxiliary stay compresses tightly the subassembly, through bridge plate main part (1) sequence valve (3) and positioning mechanism cooperation, accomplish the clamp of work piece and press from both sides tightly.
2. Four-axis bridge plate clamp for machining of shaped asymmetric rear axle end plates, according to claim 1, characterized in that two sets of positioning mechanisms are arranged and symmetrically arranged on the upper surface of the bridge plate body (1).
3. The four-axis bridge plate clamp for machining the special-shaped asymmetric rear axle end plate is characterized by comprising a plane positioning supporting nail (41), a screwing direction positioning part (42), a floating taper pin part (43), a main pressing cylinder (44) and a spring pre-pressing part (45).
4. The four-axis bridge plate clamp for machining the special-shaped asymmetric rear axle end plate is characterized in that the floating taper pin parts (43) are arranged in the middle of each part in the positioning mechanism, two main pressing cylinders (44) are arranged and symmetrically arranged on two sides of the periphery of the floating taper pin parts (43), the spring pre-pressing parts (45) and the screwing direction positioning parts (42) are respectively arranged on two sides of one main pressing cylinder (44), three plane positioning supporting nails (41) are arranged and distributed in three side directions of the floating taper pin parts (43) in a triangular mode, and two plane positioning supporting nails (41) are respectively arranged under the main pressing cylinders (44).
5. The four-axis bridge plate clamp for machining the special-shaped asymmetric rear axle end plate is characterized in that the auxiliary supporting and pressing assembly comprises an auxiliary supporting cylinder (51), an auxiliary pressing cylinder (52), a turning auxiliary supporting mechanism (53) and an auxiliary pressing mechanism (54), the auxiliary supporting cylinder (51) and the auxiliary pressing cylinder (52) are arranged on the same side of the floating taper pin part (43) in a point-to-point mode, and the turning auxiliary supporting mechanism (53) and the auxiliary pressing mechanism (54) are coaxially arranged on the other side, opposite to the auxiliary supporting cylinder (51), of the floating taper pin part (43).
6. The four-axle bridge plate clamp for machining of the shaped asymmetric rear axle end plate as claimed in claim 5, wherein the coarse limiting assembly comprises a coarse limiting portion (61) and a spring support portion (62).
7. The four-axis bridge plate clamp for machining the special-shaped asymmetric rear axle end plate is characterized in that 3 coarse limiting parts (61) are arranged on one side of the main pressing cylinder (44) and one side of the auxiliary pressing cylinder (52).
8. The four-axle bridge plate clamp for machining the special-shaped asymmetric rear axle end plate as claimed in claim 7, wherein the coarse limiting part (61) is a limiting pin.
9. Four-axis bridge plate clamp for machining of shaped asymmetric rear axle end plates according to claim 1, characterized in that the lower surface of the bridge plate body (1) is provided with support legs (7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201921210710.1U CN210756573U (en) | 2019-07-30 | 2019-07-30 | Machining four-axis bridge plate clamp for special-shaped asymmetric rear axle end plate |
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CN201921210710.1U CN210756573U (en) | 2019-07-30 | 2019-07-30 | Machining four-axis bridge plate clamp for special-shaped asymmetric rear axle end plate |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113997091A (en) * | 2021-11-30 | 2022-02-01 | 湖南运达机电科技股份有限公司 | Floating center-dividing hydraulic clamp |
CN114406765A (en) * | 2022-03-01 | 2022-04-29 | 安徽农业大学 | Fourth shaft double-station hydraulic clamp for thin-wall shell of wheat seed sowing device |
-
2019
- 2019-07-30 CN CN201921210710.1U patent/CN210756573U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113997091A (en) * | 2021-11-30 | 2022-02-01 | 湖南运达机电科技股份有限公司 | Floating center-dividing hydraulic clamp |
CN113997091B (en) * | 2021-11-30 | 2024-02-02 | 湖南运达机电科技股份有限公司 | Floating center-dividing hydraulic clamp |
CN114406765A (en) * | 2022-03-01 | 2022-04-29 | 安徽农业大学 | Fourth shaft double-station hydraulic clamp for thin-wall shell of wheat seed sowing device |
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