CN112792593A - Hydraulic clamp for machining automobile protection support - Google Patents
Hydraulic clamp for machining automobile protection support Download PDFInfo
- Publication number
- CN112792593A CN112792593A CN202010654118.1A CN202010654118A CN112792593A CN 112792593 A CN112792593 A CN 112792593A CN 202010654118 A CN202010654118 A CN 202010654118A CN 112792593 A CN112792593 A CN 112792593A
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- Prior art keywords
- positioning
- clamp
- pressing cylinder
- hydraulic
- clamp body
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Classifications
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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
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- 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)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a hydraulic clamp for an automobile protective support, which is positioned by a positioning shaft and a positioning key, is arranged on a horizontal machining center, and comprises a clamp body and a built-in hydraulic oil circuit, wherein the clamp body is provided with a positioning shaft and a positioning key; a positioning shaft arranged on the fixture body in an interference fit manner, a positioning key connected with a screw, a right-angle surface positioning block and three diamond-shaped pins which are detachably arranged on the fixture body, so that the positioning of the parts is realized; the clamp comprises a clamp body, eight hydraulic floating support cylinders, nine hydraulic lever pressing cylinders, four piston type pressing cylinders and four corner pressing cylinders, wherein the clamp body is connected with the clamp body through cushion blocks; the fixture comprises a right-angle positioning surface, a pre-positioning block, a pre-positioning rod, a pressing mechanism and a fixture body, wherein the pre-positioning block is arranged on the right-angle positioning surface, the pre-positioning rod is arranged on the fixture body, the other two pre-positioning rods are arranged on the fixture body, the functions of part pre-positioning and mechanical error prevention are realized, the left part and the right part are symmetrical, the positioning and pressing.
Description
Technical Field
The invention relates to the technical field of hydraulic fixtures, in particular to a hydraulic fixture for machining an automobile protection support.
Background
In the prior art, the left/right protective bracket-connecting frame and the bracket of the automobile are formed by combining four parts into one part through structural optimization, and then are connected with a frame through riveting and bolts, and a steel plate spring is connected with a lifting lug part of the protective bracket-connecting frame and the bracket through pins to support and fix the steel plate spring; the traction towing hook is connected to the protective bracket, the connecting frame and the bracket through threads; the bumper is connected to the part through bolts, the quality conditions of the protective bracket-connecting frame and the protective bracket directly influence the performance of the steel plate spring suspension and the assembly effect of the bumper, and the bumper is an important structural part in an automobile chassis system. The station process of processing the protective bracket, the connecting frame and the bracket originally adopts a vertical processing center and a common milling machine to carry out decentralized process processing, each process of a product needs to use a set of clamp, the clamp and equipment investment is large, the clamp is adjusted in a labor-consuming and time-consuming manner, the cost investment is large, and the processing precision is unstable.
Disclosure of Invention
The invention aims to provide a hydraulic clamp for machining an automobile protective support, which can improve the product precision, reduce the clamp investment and improve the tool adjusting efficiency.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a hydraulic clamp for processing an automobile protective support, which comprises a clamp body arranged on a horizontal processing center workbench, two groups of clamp assemblies are symmetrically arranged on the clamp body along the center line of the clamp body, the clamp assembly comprises a right-angle surface positioning block, a fixed positioning cushion block, a diamond positioning pin, a floating support cylinder, a lever pressing cylinder, a piston pressing cylinder, a corner pressing cylinder and a pre-positioning block, each component in the clamp components is arranged on the corresponding position of the clamp body according to the structure and processing technology requirements of the protective bracket, the pre-positioning blocks arranged on the clamp body and the right-angle surface positioning block are used for pre-positioning the protective support, the right-angle surface positioning block, the fixed positioning cushion block and the diamond positioning pin are used for positioning the protective support, the floating support cylinder, the lever pressing cylinder, the corner pressing cylinder and the piston pressing cylinder which are arranged on the fixture body through the cushion blocks are used for carrying out auxiliary support and pressing on the protection support.
Preferably, the bottom center of the fixture body is provided with a positioning shaft in an interference fit manner, the positioning shaft is installed in a matched manner with the fixture body through a positioning key, and the fixture body is installed on a workbench of the horizontal machining center in a positioning manner through the positioning shaft and the positioning key.
Preferably, the rhombic positioning pin is arranged on the right-angle surface positioning block in an interference fit manner.
Preferably, the fixture body is detachably provided with a diamond pin, and the diamond pin is arranged on a cushion block on the upper surface of the fixture body.
Preferably, the floating support cylinder, the lever pressing cylinder and the piston pressing cylinder are all mounted on the clamp body through bolts by cushion blocks.
Preferably, the outer side surface of the right-angle surface positioning block is provided with a corner pressing cylinder.
Preferably, a piston pressing cylinder is arranged at the top of the right-angle surface positioning block and is fixed on the right-angle surface positioning block through a bolt; the special-shaped cushion block is provided with an inclined block type piston pressing cylinder and is fixed on the clamp body through a bolt.
Preferably, a built-in oil passage communicated with the oil passages of the floating support cylinder, the lever pressing cylinder and the piston pressing cylinder is arranged in the clamp body.
Compared with the prior art, the invention has the following beneficial technical effects:
the hydraulic clamp for machining the automobile protective support is positioned through the positioning shaft and the positioning key, is arranged on the horizontal machining center, and comprises a clamp body and a built-in hydraulic oil circuit; a positioning shaft arranged on the fixture body in an interference fit manner, a positioning key connected with a screw, a right-angle surface positioning block and three diamond-shaped pins which are detachably arranged on the fixture body, so that the positioning of the parts is realized; the fixture comprises eight hydraulic floating support cylinders, nine hydraulic lever pressing cylinders, four piston type pressing cylinders and two corner pressing cylinders, wherein the eight hydraulic floating support cylinders, the nine hydraulic lever pressing cylinders and the four piston type pressing cylinders are connected to the fixture body through cushion blocks; the fixture comprises a right-angle positioning surface, a pre-positioning block, a pre-positioning rod, a pressing mechanism and a fixture body, wherein the pre-positioning block is arranged on the right-angle positioning surface, the pre-positioning rod is arranged on the fixture body, the other two pre-positioning rods are arranged on the fixture body, the functions of part pre-positioning and mechanical error prevention are realized, the left part and the right part are symmetrical, the positioning and pressing.
The protection support-connecting frame and the support hydraulic universal fixture are arranged on a horizontal machining center, and the optimized design of the left/right protection support-connecting frame and the support of an automobile, such as bilateral symmetry and slight difference, the weight reduction of the appearance of the fixture body, the machining manufacturability of an oil way, the over-positioning mode of rhombus positioning, the matching of various hydraulic cylinders and the like, is utilized, so that the optimized design of the fixture body, a built-in oil way, a right-angle surface positioning block, a fixed positioning block, a rhombus positioning pin, a hydraulic floating supporting cylinder, a hydraulic lever pressing cylinder, a hydraulic piston pressing cylinder, a hydraulic corner pressing cylinder and a pre-positioning block/shaft is further optimized, and the machining of the multi-process protection support-connecting frame and the support is realized by one set of fixture, so that the investment of the fixture and the equipment is less, the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a hydraulic clamp for machining a protective automotive mount;
FIG. 2 is an isometric view of a hydraulic clamp for machining a protective automotive support;
the hydraulic positioning device comprises a clamp body 1, a clamp body 2, a built-in oil circuit 3, a positioning key 4, a positioning shaft 5, a diamond positioning pin I, a diamond positioning pin II, a right-angle surface positioning block 7, a corner hydraulic cylinder 8, a hydraulic floating supporting cylinder I, a hydraulic floating supporting cylinder II, a hydraulic floating supporting cylinder III, a hydraulic lever pressing cylinder I, a diamond positioning pin III, a pre-positioning rod I, a hydraulic lever pressing cylinder II, a hydraulic lever pressing cylinder III, a hydraulic lever pressing cylinder IV, a hydraulic lever fixing positioning block 18, a pre-positioning rod II, a hydraulic piston type pressing cylinder IV, a hydraulic floating supporting cylinder IV, a hydraulic piston type pressing cylinder IV and a hydraulic lever pre-positioning block 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a hydraulic clamp for machining an automobile protective support, which can improve the machining precision of products, reduce the clamp investment and improve the efficiency of adjusting a tool, and solves the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the embodiment provides a hydraulic clamp for machining an automobile protective support, which is installed on a horizontal machining center and includes a clamp body 1, a positioning shaft 4 and a positioning key 3, wherein the positioning shaft and the positioning key are installed on the clamp body 1 in an interference fit manner; a right-angle surface positioning block 7 arranged on the fixture body 1 through a cushion block by a bolt, a diamond positioning pin I5 and a diamond positioning pin II 6 arranged on the right-angle surface positioning block 7, and a diamond positioning pin III 13 arranged on the fixture body 1 through a bolt by a cushion block; the hydraulic floating support cylinder I9, the hydraulic floating support cylinder II 10, the hydraulic floating support cylinder III 11 and the hydraulic floating support cylinder IV 21 are arranged on the clamp body 1 through a cushion block through bolts, the hydraulic lever pressing cylinder I12, the hydraulic lever pressing cylinder II 15, the hydraulic lever pressing cylinder III 16, the hydraulic lever pressing cylinder IV 17 and the hydraulic lever pressing cylinder V23 are arranged on the clamp body 1 through the cushion block, the hydraulic wedge-shaped piston pressing cylinder I20 is arranged on the clamp body 1 through the cushion block, the hydraulic piston pressing cylinder II 22 is arranged on the right-angle face positioning block 7 through a plug pin and a limiting plug, and the hydraulic corner pressing cylinder 8 arranged on the side face of the right-angle face positioning block 7 is connected through bolts; the first prepositioning rod 14, the second prepositioning rod 19 and the prepositioning block 24 are arranged on the fixture body 1 and the right-angle surface positioning block 7. Each compaction cylinder plays a role in compaction and is mainly matched with hydraulic cylinders with different structures according to the requirements of part structures and machining processes.
The whole hydraulic universal fixture is arranged on a horizontal machining center workbench, is arranged on the workbench by utilizing a positioning shaft 4 and a positioning key 3, determines the mechanical position, further determines the relative positions of a machined part coordinate system, a programming coordinate system, a machine tool and a cutter, and when an automobile protection support-connecting frame and a support are machined, according to the left and right structure difference of a product, a first pre-positioning rod 14 and a second pre-positioning rod 19 which are arranged on the fixture body 1 and a pre-positioning block 24 which is arranged on a right-angle surface positioning block 7 play roles of protecting a hydraulic cylinder and preventing errors according to the position and identification of the pre-positioning rods/blocks. The fixed positioning block 18 and the right-angle surface positioning block 7 cooperate to restrain the rotation and the movement of the part in the Z direction.
When a left part is machined, in the first step, the right-angle surface positioning block 7, the diamond positioning pin I5, the diamond positioning pin II 2, the diamond positioning pin III 13, the pre-positioning rod I14, the pre-positioning rod II 19 and the pre-positioning block 24 are used for realizing pre-positioning and positioning of the part, and meanwhile, the protection of a hydraulic cylinder and the error prevention function of the part are achieved according to the spatial positions of the pre-positioning rod I14, the pre-positioning rod II 19 and the pre-positioning block 24 relative to other components and the positions and marks of the machined part. And secondly, inserting a pressing rod of a piston pressing cylinder II 22, pressing a pressing button of the equipment, firstly, realizing pressing action by a hydraulic lever pressing cylinder I12, a hydraulic lever pressing cylinder IV 17, a hydraulic lever pressing cylinder V23, a hydraulic piston pressing cylinder II 22 and a hydraulic corner cylinder 8, then realizing auxiliary supporting and pressing actions by a hydraulic floating supporting cylinder I9, a hydraulic floating supporting cylinder II 10, a hydraulic floating supporting cylinder III 11 and a hydraulic floating supporting cylinder IV 21, a hydraulic lever pressing cylinder II 15, a hydraulic lever pressing cylinder III 16 and a hydraulic piston pressing cylinder I20, and finishing pressing of the automobile protection support. The right part machining positioning and compressing principle is the same as that of the left part, the positioning and compressing assemblies are arranged in a shared or symmetrical mode in a mixed mode, the utilization rate of the assemblies is improved, the cost of the clamp is reduced, and the positioning and compressing functions of the symmetrical parts are achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides a hydraulically operated fixture for processing car protection support which characterized in that: comprises a clamp body arranged on a horizontal machining center workbench, two groups of clamp assemblies are symmetrically arranged on the clamp body along the center line of the clamp body, the clamp assembly comprises a right-angle surface positioning block, a fixed positioning cushion block, a diamond positioning pin, a floating support cylinder, a lever pressing cylinder, a piston pressing cylinder, a corner pressing cylinder and a pre-positioning block, each component in the clamp components is arranged on the corresponding position of the clamp body according to the structure and processing technology requirements of the protective bracket, the pre-positioning blocks arranged on the clamp body and the right-angle surface positioning block are used for pre-positioning the protective support, the right-angle surface positioning block, the fixed positioning cushion block and the diamond positioning pin are used for positioning the protective support, the floating support cylinder, the lever pressing cylinder, the corner pressing cylinder and the piston pressing cylinder which are arranged on the fixture body through the cushion blocks are used for carrying out auxiliary support and pressing on the protection support.
2. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: the bottom center of the fixture body is provided with a positioning shaft in an interference fit manner, the positioning shaft is matched and installed with the fixture body through a positioning key, and the fixture body is positioned and installed on a workbench of a horizontal machining center through the positioning shaft and the positioning key.
3. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: and the right-angle surface positioning block is provided with a diamond positioning pin in an interference fit manner.
4. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: the clamp body is detachably provided with a diamond-shaped pin, and the diamond-shaped pin is arranged on a cushion block on the upper surface of the clamp body.
5. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: the floating support cylinder, the lever pressing cylinder and the piston pressing cylinder are all installed on the clamp body through cushion blocks through bolts.
6. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: and a corner pressing cylinder is arranged on the outer side surface of the right-angle surface positioning block.
7. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: the top of the right-angle surface positioning block is provided with a piston pressing cylinder which is fixed on the right-angle surface positioning block through a bolt; the special-shaped cushion block is provided with an inclined block type piston pressing cylinder and is fixed on the clamp body through a bolt.
8. The hydraulic clamp for machining the automobile protective support according to claim 1, wherein: and the clamp body is internally provided with a built-in oil way which is respectively communicated with the oil ways of the floating support cylinder, the lever pressing cylinder and the piston pressing cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654118.1A CN112792593A (en) | 2020-07-09 | 2020-07-09 | Hydraulic clamp for machining automobile protection support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654118.1A CN112792593A (en) | 2020-07-09 | 2020-07-09 | Hydraulic clamp for machining automobile protection support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112792593A true CN112792593A (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010654118.1A Pending CN112792593A (en) | 2020-07-09 | 2020-07-09 | Hydraulic clamp for machining automobile protection support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112792593A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732739A (en) * | 2021-09-18 | 2021-12-03 | 十堰合骏实业有限公司 | Hydraulic positioning clamp for preorder processing of protective support |
| 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 |
-
2020
- 2020-07-09 CN CN202010654118.1A patent/CN112792593A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732739A (en) * | 2021-09-18 | 2021-12-03 | 十堰合骏实业有限公司 | Hydraulic positioning clamp for preorder processing of protective support |
| 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 |
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