CN220592388U - Tool clamp for milling drop of connecting rod - Google Patents
Tool clamp for milling drop of connecting rod Download PDFInfo
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- CN220592388U CN220592388U CN202321801579.2U CN202321801579U CN220592388U CN 220592388 U CN220592388 U CN 220592388U CN 202321801579 U CN202321801579 U CN 202321801579U CN 220592388 U CN220592388 U CN 220592388U
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Abstract
The utility model relates to the field of workpiece clamping, in particular to a fixture for milling drop machining of a connecting rod, which comprises a base and a plurality of groups of workpiece clamping devices arranged on the base, wherein each workpiece clamping device comprises a workpiece placing platform, a first clamping mechanism and a second clamping mechanism, a machined workpiece is placed on the workpiece placing platform, the first clamping mechanism acts on one side of a large end of the workpiece, and the first clamping mechanism acts on one side of a small end of the workpiece. The utility model has the technical characteristics that: the device has the advantages of simple structure, convenient assembly and disassembly, high positioning standard and universality, simultaneous clamping, labor capacity and labor intensity reduction, auxiliary time saving, work efficiency improvement by more than 2 times, convenient replacement, suitability for the requirement of mass production of the numerical control vertical drilling and milling machine tool machining center, and great improvement of the machining efficiency.
Description
Technical Field
The utility model relates to the field of workpiece clamping, in particular to a tool clamp for milling drop machining of a connecting rod.
Background
Two through holes are formed in two ends of a machined connecting rod workpiece of the automobile engine, so that machining accuracy of the two through holes is particularly critical, and the machining accuracy is usually achieved through a clamp mechanism.
The clamp mechanism is one of technical devices for realizing efficient production in the machining automobile manufacturing industry, the clamping structure is a main structure of the clamp, the structural form of the clamp directly influences the clamping force, the clamping speed, the operation difficulty and the like of the clamp, and the oil pressure or hydraulic clamping structure is relatively mechanical to the clamping structure, so that the clamp mechanism has the advantages of rapid clamping action, convenient operation and labor saving, and is suitable for being widely applied to numerical control machining center equipment.
However, the machining center determines the space positions among the holes by means of a program, so that the requirements on positioning reference and precision of a connecting rod workpiece are high, and sometimes the arrangement of a clamp can interfere the machining of certain hole positions, so that the machining efficiency is affected.
In view of the above, the utility model provides a fixture for milling a drop of a connecting rod.
Disclosure of Invention
The utility model aims to provide a fixture for milling drop of a connecting rod aiming at the defects of the prior art.
In order to solve the technical problems, the following technical scheme is adopted:
a frock clamp for connecting rod mills drop processing, includes the base and sets up multiunit work piece clamping device on the base, work piece clamping device includes work piece place the platform, first clamping mechanism and second clamping mechanism, place the work piece of processing on the work piece place the platform, first clamping mechanism acts on one side of the big end of work piece, first clamping mechanism acts on one side of the tip of work piece.
The first clamping mechanism is a horizontal clamping mechanism and comprises a left clamping assembly and a right clamping assembly, the left clamping assembly and the right clamping assembly have the same structure, the left clamping assembly acts on the left side of the large end of the workpiece, and the right clamping assembly acts on the right side of the large end of the workpiece; the second clamping mechanism is an oblique clamping mechanism.
Further, the first clamping mechanism further comprises a first clamping oil cylinder, a first clamping piston rod, a first connecting plate, a left pull rod and a right pull rod, wherein the output end of the first clamping oil cylinder is connected with the first clamping piston rod, the other end of the first clamping piston rod is connected to the middle part of the first connecting plate, the left end of the first connecting plate is fixedly connected with the left pull rod, the left pull rod is connected with the left clamping assembly, the right end of the first connecting plate is fixedly connected with the right pull rod, and the right pull rod is connected with the right clamping assembly.
Further, the left clamping assembly comprises a left clamping push rod and a left clamping block, the lower part of the left clamping push rod is connected with the left pull rod, the upper part of the left clamping push rod is connected with the left clamping block, and the left clamping block acts on the left side of the large end of the workpiece.
Further, the right clamping assembly comprises a right clamping push rod and a right clamping block, the lower part of the right clamping push rod is connected with the right pull rod, the upper part of the right clamping push rod is connected with the right clamping block, and the right clamping block acts on the right side of the large end of the workpiece.
Further, a left bearing sleeve is arranged on the left pull rod, the outer part of the left bearing sleeve is fixed on the middle plate, a right bearing sleeve is arranged on the right pull rod, and the outer part of the right bearing sleeve is fixed on the middle plate.
Further, the left bearing sleeve and the right bearing sleeve are both provided with bushing stops.
Further, the second clamping mechanism comprises a second clamping cylinder, a second clamping piston rod, a second clamping rod, a middle supporting seat and a clamping block, the output end of the second clamping cylinder is connected with the second clamping piston rod, the other end of the second clamping piston rod is connected to one end of the second clamping rod, the other end of the second clamping rod is connected with the clamping block, the clamping block obliquely clamps the workpiece, and the middle supporting seat is hinged to the middle of the second clamping rod.
Further, a large end cushion block is arranged on one side of the large end of the workpiece at the lower part of the workpiece placement platform, and a small end cushion block is arranged on one side of the small end of the workpiece at the lower part of the workpiece placement platform.
Further, a large end positioning block is arranged on one side, located at the large end of the workpiece, of the upper portion of the workpiece placement platform, the large end positioning block is installed on the workpiece placement platform through a large end positioning pin, a small end positioning block is arranged on one side, located at the small end of the workpiece, of the upper portion of the workpiece placement platform, and the small end positioning block is installed on the workpiece placement platform through a small end positioning pin.
Further, a plurality of supporting blocks are arranged on the base, a middle plate is arranged on the supporting blocks, and a plurality of workpiece clamping devices are arranged on the middle plate.
Due to the adoption of the technical scheme, the method has the following beneficial effects:
the utility model relates to a fixture for milling drop height machining of a connecting rod, which is characterized in that a workpiece is placed on a large end positioning block and a small end positioning block of a workpiece placing platform, then left and right sides of the workpiece in the horizontal direction are respectively clamped by a left clamping component and a right clamping component which are provided with a first clamping mechanism, finally a certain included angle is formed between a clamping block and a vertical surface by a second clamping mechanism which is an oblique clamping mechanism, so that the clamping block avoids the machining part of the workpiece to be machined, the machining of the workpiece can not be interfered, and the machining work of the overlook surface of the workpiece can be completed by only one-time clamping. And through setting up first clamping mechanism and second clamping mechanism, carry out all-round fixed clamp to the work piece, press from both sides tightly more firmly stable, machining precision is better.
The utility model has the technical characteristics that: the device has the advantages of simple structure, convenient assembly and disassembly, high positioning standard and universality, simultaneous clamping, labor capacity and labor intensity reduction, auxiliary time saving, work efficiency improvement by more than 2 times, convenient replacement, suitability for the requirement of mass production of the numerical control vertical drilling and milling machine tool machining center, and great improvement of the machining efficiency.
Drawings
The utility model is further described below with reference to the accompanying drawings:
fig. 1 is a schematic top view of a tooling fixture for milling a drop of a connecting rod according to an embodiment of the utility model.
Fig. 2 is a schematic diagram of a front view structure of a fixture for milling a drop of a connecting rod according to an embodiment of the utility model.
Fig. 3 is a schematic side view of a tooling fixture for milling a drop of a connecting rod according to an embodiment of the utility model.
Fig. 4 is a schematic cross-sectional view of a first clamping mechanism according to an embodiment of the utility model.
In the figure, a 1-base; 2-a workpiece placement platform; 3-a first clamping mechanism; 4-a second clamping mechanism; 5-a workpiece; 6-a large end cushion block; 7-small end cushion blocks; 8-a large end positioning block; 9-a large end locating pin; 10-small end positioning blocks; 11-small end locating pins; 12-supporting blocks; 13-middle plate.
31-a first clamping cylinder; 32-a first clamping piston rod; 33-a first connection plate; 34-left pull rod; 35-right pull rod; 36-left clamp assembly; 37-right clamp assembly; 38-left bearing sleeve; 39-right bearing sleeve; 40-bushing stops.
361-left clamp push rod; 362-left clamp block; 371-right grip push rod; 372-right grip block.
41-a second clamping cylinder; 42-second clamping piston rod; 43-a second clamping bar; 44-middle support 54-clamping blocks.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
Referring to fig. 1-4, a fixture for milling drop machining of a connecting rod comprises a base 1 and a plurality of groups of workpiece clamping devices arranged on the base 1, wherein each workpiece clamping device comprises a workpiece placing platform 2, a first clamping mechanism 3 and a second clamping mechanism 4, a machined workpiece 5 is placed on the workpiece placing platform 2, the first clamping mechanism 3 acts on one side of the large end of the workpiece 5, and the first clamping mechanism 3 acts on one side of the small end of the workpiece 5.
The first clamping mechanism 3 is a horizontal clamping mechanism, the first clamping mechanism 3 comprises a left clamping component 36 and a right clamping component 37, the left clamping component 36 and the right clamping component 37 have the same structure, the left clamping component 36 acts on the left side of the large end of the workpiece 5, and the right clamping component 37 acts on the right side of the large end of the workpiece 5; the second clamping mechanism 4 is an oblique clamping mechanism.
As a further explanation of this embodiment, the first clamping mechanism 3 further includes a first clamping cylinder 31, a first clamping piston rod 32, a first connecting plate 33, a left pull rod 34, and a right pull rod 35, where an output end of the first clamping cylinder 31 is connected with the first clamping piston rod 32, another end of the first clamping piston rod 32 is connected with a middle portion of the first connecting plate 33, a left pull rod 34 is fixedly connected with a left end of the first connecting plate 33, the left pull rod 34 is connected with the left clamping assembly 36, a right end of the first connecting plate 33 is fixedly connected with a right pull rod 35, and the right pull rod 35 is connected with the right clamping assembly 37.
As a further illustration of the present embodiment, the left clamping assembly 36 includes a left clamping push rod 361 and a left clamping block 362, wherein a lower portion of the left clamping push rod 361 is connected to the left pull rod 34, and an upper portion of the left clamping push rod 361 is connected to the left clamping block 362, and the left clamping block 362 acts on a left side of the large end of the workpiece 5.
As a further explanation of this embodiment, the right clamping assembly 37 includes a right clamping push rod 371 and a right clamping block 372, the lower portion of the right clamping push rod 371 is connected to the right pull rod 35, the upper portion of the right clamping push rod 371 is connected to the right clamping block 372, and the right clamping block 372 acts on the right side of the large end of the workpiece 5.
As a further explanation of this embodiment, the left pull rod 34 is provided with a left bearing sleeve 38, an outer portion of the left bearing sleeve 38 is fixed on the middle plate, the right pull rod 35 is provided with a right bearing sleeve 39, and an outer portion of the right bearing sleeve 39 is fixed on the middle plate.
As a further illustration of the present embodiment, both the left bearing housing 38 and the right bearing housing 39 are provided with bushing stops 40.
As a further explanation of this embodiment, the second clamping mechanism 4 includes a second clamping cylinder 41, a second clamping piston rod 42, a second clamping rod 43, a middle support seat 44, and a clamping block 45, where an output end of the second clamping cylinder 41 is connected with the second clamping piston rod 42, another end of the second clamping piston rod 42 is connected to one end of the second clamping rod 43, another end of the second clamping rod 43 is connected to the clamping block 45, the clamping block 45 obliquely clamps the workpiece 5, and a middle support seat 44 is hinged to a middle part of the second clamping rod 43. The middle supporting seat 44 is a lever fulcrum, when the second clamping piston rod 42 of the second clamping cylinder 41 acts on one end of the second clamping rod 43 upwards, the other end of the second clamping rod 43 moves downwards under the action of the fulcrum of the middle supporting seat 44, so that the clamping block 45 acts on the workpiece 5, and a certain vertical included angle is formed between the clamping block 45 and the workpiece 5, so that the machining of the workpiece 5 cannot be interfered, and the machining work of the overlook surface of the workpiece 5 can be completed only by one-time clamping. The second clamping cylinder 41 is a rotary cylinder, so that the clamp formed by combining the rotary cylinder and the lever device has the dual requirements of strong and reliable clamping force, rapid clamping, high structural strength of the clamp and suitability for high-speed cutting processing and accurate positioning.
As a further explanation of the present embodiment, a large end pad 6 is disposed at one side of the large end of the workpiece 5 at the lower portion of the workpiece placement platform 2, and a small end pad 7 is disposed at one side of the small end of the workpiece 5 at the lower portion of the workpiece placement platform 2.
As a further explanation of this embodiment, a large end positioning block 8 is disposed on one side of the large end of the workpiece 5 at the upper portion of the workpiece placement platform 2, the large end positioning block 8 is mounted on the workpiece placement platform 2 through a large end positioning pin 9, a small end positioning block 10 is disposed on one side of the small end of the workpiece 5 at the upper portion of the workpiece placement platform 2, and the small end positioning block 10 is mounted on the workpiece placement platform 2 through a small end positioning pin 11. By arranging the large end positioning block 8 and the small end positioning block 10, an operator can conveniently and quickly place the workpiece 5, and preparation is made for machining work.
As a further explanation of this embodiment, the base 1 is provided with a plurality of support blocks 12, the support blocks 12 are provided with a middle plate 13, and the middle plate 13 is provided with a plurality of workpiece clamping devices. By providing the support block 12 and the middle plate 13, an installation space is formed in which the first clamping mechanism 3 and the second clamping mechanism 4 are installed.
The working principle of the utility model is as follows: the workpiece 5 is placed on the large end positioning block 8 and the small end positioning block 10 of the workpiece placement platform 2, then the left clamping assembly 36 and the right clamping assembly 37 of the first clamping mechanism 3 are arranged to clamp the left side and the right side of the horizontal direction of the workpiece 5 respectively, and finally the second clamping mechanism 4 is used for forming a certain included angle between the clamping block 45 and the vertical surface due to the fact that the second clamping mechanism 4 is an oblique clamping mechanism, so that the clamping block 45 avoids the machining position of the workpiece 5 to be machined, the workpiece 5 cannot be interfered during machining, and machining work of the overlook surface of the workpiece 5 can be completed only by one-time clamping. And through setting up first clamping mechanism 3 and second clamping mechanism 4, carry out all-round fixed clamp to work piece 5, press from both sides tightly more firmly stable, machining precision is better.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are encompassed within the scope of the present utility model.
Claims (10)
1. A frock clamp for connecting rod mills drop processing, its characterized in that: the workpiece clamping device comprises a workpiece placing platform, a first clamping mechanism and a second clamping mechanism, wherein a processed workpiece is placed on the workpiece placing platform, the first clamping mechanism acts on one side of the large end of the workpiece, and the first clamping mechanism acts on one side of the small end of the workpiece;
the first clamping mechanism is a horizontal clamping mechanism and comprises a left clamping assembly and a right clamping assembly, the left clamping assembly and the right clamping assembly have the same structure, the left clamping assembly acts on the left side of the large end of the workpiece, and the right clamping assembly acts on the right side of the large end of the workpiece;
the second clamping mechanism is an oblique clamping mechanism.
2. The tooling fixture for milling drop machining of a connecting rod according to claim 1, wherein: the first clamping mechanism further comprises a first clamping oil cylinder, a first clamping piston rod, a first connecting plate, a left pull rod and a right pull rod, wherein the output end of the first clamping oil cylinder is connected with the first clamping piston rod, the other end of the first clamping piston rod is connected to the middle of the first connecting plate, the left end of the first connecting plate is fixedly connected with the left pull rod, the left pull rod is connected with the left clamping assembly, the right end of the first connecting plate is fixedly connected with the right pull rod, and the right pull rod is connected with the right clamping assembly.
3. The tooling fixture for milling drop machining of the connecting rod according to claim 2, wherein: the left clamping assembly comprises a left clamping push rod and a left clamping block, the lower part of the left clamping push rod is connected with the left pull rod, the upper part of the left clamping push rod is connected with the left clamping block, and the left clamping block acts on the left side of the large end of the workpiece.
4. The tooling fixture for milling drop machining of the connecting rod according to claim 2, wherein: the right clamping assembly comprises a right clamping push rod and a right clamping block, the lower part of the right clamping push rod is connected with the right pull rod, the upper part of the right clamping push rod is connected with the right clamping block, and the right clamping block acts on the right side of the large end of the workpiece.
5. The tooling fixture for milling drop machining of the connecting rod according to claim 2, wherein: the left pull rod is provided with a left bearing sleeve, the outer part of the left bearing sleeve is fixed on the middle plate, the right pull rod is provided with a right bearing sleeve, and the outer part of the right bearing sleeve is fixed on the middle plate.
6. The tooling fixture for milling drop machining of the connecting rod according to claim 5, wherein: the left bearing sleeve and the right bearing sleeve are both provided with bushing stops.
7. The tooling fixture for milling drop machining of a connecting rod according to claim 1, wherein: the second clamping mechanism comprises a second clamping cylinder, a second clamping piston rod, a second clamping rod, a middle supporting seat and a clamping block, wherein the output end of the second clamping cylinder is connected with the second clamping piston rod, the other end of the second clamping piston rod is connected with one end of the second clamping rod, the other end of the second clamping rod is connected with the clamping block, the clamping block obliquely clamps the workpiece, and the middle supporting seat is hinged to the middle of the second clamping rod.
8. A tooling fixture for milling drop machining of a connecting rod according to any one of claims 1-7, wherein: the lower part of the workpiece placement platform is provided with a large end cushion block at one side of the large end of the workpiece, and one side of the lower part of the workpiece placement platform at the small end of the workpiece is provided with a small end cushion block.
9. A tooling fixture for milling drop machining of a connecting rod according to any one of claims 1-7, wherein: the upper part of the workpiece placement platform is provided with a large end positioning block at one side of the large end of the workpiece, the large end positioning block is installed on the workpiece placement platform through a large end positioning pin, one side of the upper part of the workpiece placement platform, which is positioned at the small end of the workpiece, is provided with a small end positioning block, and the small end positioning block is installed on the workpiece placement platform through a small end positioning pin.
10. A tooling fixture for milling drop machining of a connecting rod according to any one of claims 1-7, wherein: the base is provided with a plurality of supporting blocks, the supporting blocks are provided with a middle plate, and the middle plate is provided with a plurality of workpiece clamping devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321801579.2U CN220592388U (en) | 2023-07-10 | 2023-07-10 | Tool clamp for milling drop of connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321801579.2U CN220592388U (en) | 2023-07-10 | 2023-07-10 | Tool clamp for milling drop of connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220592388U true CN220592388U (en) | 2024-03-15 |
Family
ID=90164470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321801579.2U Active CN220592388U (en) | 2023-07-10 | 2023-07-10 | Tool clamp for milling drop of connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220592388U (en) |
-
2023
- 2023-07-10 CN CN202321801579.2U patent/CN220592388U/en active Active
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