Fixing jig for mechanical part machining
By designing a fixture base plate and end limit baffle combined with a clamping cylinder and limit pin fixing device, the problem of numerous processes and long cycle time in the processing of columnar parts in the prior art is solved. It realizes the positioning and fixing device of columnar rod, solves the technical problems of positioning and punching of columnar rod in the prior art, and achieves efficient and effective solutions to the problems of numerous processes, long cycle time and low precision in the prior art, thus improving processing efficiency and accuracy.
Patent Information
- Application Number
- CN202422875466.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing technologies involve numerous procedures, long cycles, and low precision when machining cylindrical holes in columnar parts. This is especially true for cast steel or high-quality high-carbon steel parts with stepped rod-like structures, where efficient and precise drilling is difficult to achieve.
A fixture for machining mechanical parts has been designed, including a fixture base plate and an end limiting baffle. Combined with a clamping cylinder and a limiting pin, a columnar rod is positioned by a V-groove. The clamping cylinder drives the clamping moving plate and the limiting pin to achieve precise positioning and fixing of the columnar rod, eliminating the need for scribing and prototyping processes and allowing direct drilling.
It effectively shortens the processing cycle, improves the accuracy of the drilling position, ensures the positioning reference of the column rod, avoids the movement of the parts during the clamping process, and improves processing efficiency and accuracy.
Smart Images
Figure CN223603943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical fields related to machining, more particularly to a fixing jig for machining mechanical parts. BACKGROUND
[0002] When machining the cylindrical part, some cylindrical rods are made of cast steel or high-quality high-carbon steel, and are in a stepped rod structure. During the drilling process, the drilling position of the cylindrical rod needs to be marked and the cylindrical rod needs to be placed on a V-shaped iron and fixed by a bolt pressing plate structure. The process is complicated, the cycle is long, and the machining precision is low.
[0003] Therefore, the utility model is provided. CONTENT OF THE UTILITY MODEL
[0004] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a fixing jig for machining mechanical parts. To solve the above technical problems, the basic concept of the technical scheme adopted by the utility model is as follows:
[0005] The fixing jig for machining mechanical parts comprises a clamp base plate and an end head limiting baffle, the upper plane of the end head limiting baffle is higher than the upper plane of the clamp base plate, a V-shaped groove is machined on the clamp base plate, a cylindrical rod body is placed in the V-shaped groove, a mounting rack is fixedly installed on the end face of the clamp base plate away from the end head limiting baffle, the mounting rack is a concave-convex interval structure, clamping cylinders are installed on the outer sides of both ends and the middle position of the mounting rack, clamping moving plates are installed at the end positions of the extension rods of the clamping cylinders, clamping blocks are fixedly arranged on the plane of the side of the clamping moving plates close to the cylindrical rod body, cooperating limiting pins are fixedly installed on the clamping blocks, the cooperating limiting pins are coaxial with the cylindrical rod body, and the end head limiting baffle is used for limiting one end of the cylindrical rod body and serving as a unified limiting reference.
[0006] As a further scheme of the utility model, a conical end head is arranged at the end position of the cooperating limiting pin, a through hole is arranged at the central position of the cylindrical rod body, the size specification of the cooperating limiting pin matches that of the through hole, and the design of the conical end head facilitates the cooperation and fixation of the cooperating limiting pin and the cylindrical rod body.
[0007] As a still further scheme of the utility model, clamping pads are fixedly bonded on the end faces of the clamping blocks on the outer side of the cooperating limiting pin, the clamping pads are made of soft rubber material, can increase the friction between the clamping pads and the cylindrical rod body, and can effectively buffer the clamping process to avoid damaging the cylindrical rod body.
[0008] As a further scheme of the utility model: three clamping air cylinders are arranged, the three clamping air cylinders are synchronously telescopic, the number and position of the clamping blocks and the matching limit pins are matched with the number and position of the columnar rod bodies, the position of the columnar rod body is avoided from moving during clamping and fixing, and then the drilling position precision is effectively ensured.
[0009] As a further scheme of the utility model: two ends of the mounting frame are fixedly provided with fixed plates, the fixed plates are fixedly connected with the clamp base plate through fixed screws, fixed ears are arranged at the four corner positions of the clamp base plate, fixed grooves are formed in the fixed ears, and the fixed grooves are U-shaped structures, so that the clamp base plate can be conveniently fixedly installed on the workbench of the drilling machine.
[0010] Compared with the prior art, the utility model has the following beneficial effects after the above technical scheme is adopted.
[0011] The columnar rod processing jig of the utility model is processed with a V-shaped groove for placing and supporting the columnar rod body, one end of the clamp base plate is provided with an end limit baffle, the one end of the columnar rod body is limited, the unified positioning reference is used, the marking, sample punching and drilling processes can be omitted, and drilling can be directly performed, so that the processing period can be effectively shortened.
[0012] The processing jig of the utility model drives the clamping moving plate to move through the clamping air cylinder, clamps and fixes the columnar rod body, the clamping moving plate is provided with a matching limit pin, the position of the columnar rod body is avoided from moving during clamping and fixing, and then the drilling position precision is effectively ensured.
[0013] The specific implementation manners of the utility model will be further described in combination with the drawings. DRAWINGS
[0014] The drawings are part of the present application, which is used to provide a further understanding of the utility model, the schematic embodiments of the utility model and the description thereof are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without paying creative labor. In the drawings:
[0015] Fig. 1 It is a structural schematic view of the utility model;
[0016] Fig. 2 It is a front view of the utility model;
[0017] Fig. 3 It is a top view of the utility model;
[0018] Fig. 4The clamping diagram of the utility model.
[0019] In the figure: 1, clamp base plate; 2, end head limiting baffle; 3, V-shaped groove; 4, fixed lug; 5, fixed groove; 6, mounting frame; 7, fixed plate; 8, fixed screw; 9, clamping cylinder; 10, clamping moving plate; 11, clamping block; 12, matching limiting pin; 13, columnar rod body; 14, through hole; 15, conical end head; 16, clamping pad.
[0020] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, and the following embodiments are used to illustrate the utility model but not to limit the range of the utility model.
[0022] As Figs. 1 to 4 Indicated, the fixed jig for mechanical part machining, including clamp base plate 1 and end head limiting baffle 2, the upper plane of end head limiting baffle 2 is higher than the upper plane of clamp base plate 1, V-shaped groove 3 is processed on clamp base plate 1, columnar rod body 13 is placed in V-shaped groove 3, mounting frame 6 is fixedly installed on the end face of the end of clamp base plate 1 away from end head limiting baffle 2, mounting frame 6 is concave-convex interval structure, clamping cylinder 9 is installed on both ends and the outside of intermediate position of mounting frame 6, clamping moving plate 10 is installed on the extension rod end position of clamping cylinder 9, clamping block 11 is fixedly arranged on the plane of the side of clamping moving plate 10 close to columnar rod body 13, matching limiting pin 12 is fixedly installed on clamping block 11, matching limiting pin 12 is coaxial with columnar rod body 13, end head limiting baffle 2 is used for limiting one end of columnar rod body 13, and the unified limiting reference is limited.
[0023] Among them, the end position of matching limiting pin 12 is provided with conical end head 15, the central position of columnar rod body 13 is provided with through hole 14, the size specification of matching limiting pin 12 and the size specification of through hole 14 are matched with each other, and the design of conical end head 15 facilitates the cooperation and fixing of matching limiting pin 12 and columnar rod body 13.
[0024] Clamping pad 16 is adhesively fixed on the end face of clamping block 11 outside matching limiting pin 12, clamping pad 16 is soft rubber material, which can increase the friction between columnar rod body 13 and can effectively buffer the clamping process, so as to avoid damaging columnar rod body 13.
[0025] Three clamping cylinders 9 are provided, and the three clamping cylinders 9 synchronously move in extension and retraction, the number and position of the clamping blocks 11 and the cooperating limiting pins 12 are matched with the number and position of the columnar rod bodies 13, so that the columnar rod bodies 13 are prevented from moving in position during clamping and fixing, and the drilling position accuracy is effectively ensured.
[0026] The fixing plates 7 are fixedly arranged at two ends of the mounting frame 6, and the fixing plates 7 are fixedly connected with the clamp base plate 1 through the fixing screws 8.
[0027] The working principle of the utility model is: when drilling the columnar rod, the clamp base plate 1 is fixedly installed on the workbench of the drilling machine through the T-shaped bolt and the nut, and attention is paid to straightening and alignment, so that the end limiting baffle 2 is parallel to one of the axes of the drilling machine; the columnar rod body 13 to be drilled is placed in the V-shaped groove 3 of the clamp base plate 1, one end of the columnar rod body 13 is in contact with the end limiting baffle 2, the clamping cylinder 9 is started, the cylinder rod of the clamping cylinder 9 is extended, the clamping moving plate 10 is driven to move towards the columnar rod body 13, the cooperating limiting pins 12 on the clamping blocks 11 are inserted and installed in the through holes 14 of the columnar rod body 13, and radial limiting is performed to prevent the columnar rod body 13 from moving in position; the columnar rod body 13 is clamped and fixed by the clamping blocks 11 and the end limiting baffle 2; drilling is performed by operating the drilling machine; the drilling coordinate position is determined when the first piece is processed; and then fixed coordinate point drilling can be performed under the condition that the positioning reference is unchanged; the utility model has the advantages of reasonable structure design, convenient installation and use, limiting one end of the columnar rod body 13 by the end limiting baffle 2, unified positioning reference, omission of the processes of scribing and sample punching, direct drilling, effective shortening of the processing period, clamping and fixing of the columnar rod body 13 by the clamping moving plate 10 driven by the clamping cylinder 9, the cooperating limiting pins 12 arranged on the clamping moving plate 10, prevention of the columnar rod body 13 from moving in position during clamping and fixing, and effective ensuring of the drilling position accuracy.
[0028] The above description is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any person skilled in the art can make some changes or modifications to the above-mentioned technical content within the scope of the technical scheme of the utility model to obtain equivalent embodiments, but as long as the content of the utility model is not deviated, any simple modification, equivalent change and modification of the above-mentioned embodiments according to the technical essence of the utility model are still within the scope of the utility model.
Claims
1. A fixing jig for machining of mechanical parts, comprising a jig base plate (1) and an end head limiting baffle (2), characterized in that, The upper plane of the end limiting baffle (2) is higher than the upper plane of the clamp base plate (1), a V-shaped groove (3) is processed on the clamp base plate (1), a columnar rod body (13) is placed in the V-shaped groove (3), a mounting rack (6) is fixedly installed on the end face of the clamp base plate (1) away from the end limiting baffle (2), the mounting rack (6) is a concave-convex interval structure, clamping cylinders (9) are installed on both ends and the outer side of the middle position of the mounting rack (6), clamping moving plates (10) are installed at the end positions of the telescopic rods of the clamping cylinders (9), clamping blocks (11) are fixedly arranged on the plane of the side close to the columnar rod body (13) of the clamping moving plates (10), cooperating limiting pins (12) are fixedly installed on the clamping blocks (11), and the cooperating limiting pins (12) are coaxial with the columnar rod body (13).
2. The jig according to claim 1, wherein A conical end (15) is arranged at the end position of the cooperating limiting pin (12), a through hole (14) is arranged at the central position of the columnar rod body (13), and the size specifications of the cooperating limiting pin (12) and the through hole (14) are matched with each other.
3. The jig according to claim 2, wherein A clamping pad (16) is adhesively fixed on the end face of the clamping block (11) outside the cooperating limiting pin (12), and the clamping pad (16) is made of soft rubber.
4. The jig according to claim 3, wherein The clamping cylinders (9) are provided in three, the three clamping cylinders (9) are synchronously moved in extension and retraction, and the number and position of the clamping blocks (11) and the cooperating limiting pins (12) are matched with the number and position of the columnar rod body (13).
5. The jig according to claim 4, wherein Both ends of the mounting rack (6) are fixedly provided with fixed plates (7), the fixed plates (7) are fixedly connected with the clamp base plate (1) through fixed screws (8), fixed ears (4) are arranged at the four corner positions of the clamp base plate (1), fixed grooves (5) are formed in the fixed ears (4), and the fixed grooves (5) are U-shaped structures.