Special-shaped part machining jig

Abstract

The utility model provides a special-shaped part machining jig which comprises a fixed bottom plate, sliding grooves are formed in the fixed bottom plate at intervals, the sliding grooves are connected with lifting columns in a matched mode, the tops of the lifting columns are connected with clamp heads, and the bottoms of the clamp heads are connected with the top of the fixed bottom plate through elastic parts. The fixed bottom plate is arranged at the bottom of the shell middle plate, a concave step is formed in the middle of the top face of the shell middle plate, a fixed partition plate is arranged at the bottom of the concave step, and the fixed partition plate is connected with the clamp head in a sliding mode; the sliding push plate is arranged at the top of the shell middle plate, a limiting groove is formed in the middle of the sliding push plate and is in sliding connection with the clamp head, and one side face of the sliding push plate is connected with a push-pull device. And during multi-process machining of special-shaped parts, fixing clamps need to be replaced frequently, and time and labor are wasted.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of processing fixtures, and in particular to a processing fixture for special-shaped parts. Background Art

[0002] Special-shaped parts processing is one of the common metal processing, which mainly uses a processing jig adapted to the special-shaped parts to clamp them, and then places them under the processing equipment for turning, milling and other operations.

[0003] The inventor discovered the following defects during the operation of the specific embodiment:

[0004] In the process of processing different special-shaped parts, it is found that it is difficult to fix special-shaped parts, and special clamping positions need to be provided. This is mainly because the fixtures are specially customized to fit the corners of special-shaped parts and can only be fixed in predetermined positions. In addition, when processing special-shaped parts in multiple processes, the fixing fixtures need to be frequently replaced, which is time-consuming and labor-intensive; if the external dimensions of the special-shaped parts deviate, it will be difficult to fix.

[0005] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The utility model provides a special-shaped parts processing jig, which is used to solve the technical problems existing in the above-mentioned background technology.

[0008] 2. Technical solution:

[0009] To achieve the above-mentioned purpose, the technical solution provided by the utility model is as follows: a special-shaped parts processing jig, comprising a fixed bottom plate, the fixed bottom plate is provided with sliding grooves spaced apart, the sliding grooves are matched and connected to lifting columns, the top of the lifting columns is connected to a fixture head, and the bottom of the fixture head is connected to the top of the fixed bottom plate through an elastic member;

[0010] The middle plate of the shell has the fixed bottom plate at the bottom, a concave step is opened in the middle of the top surface of the middle plate of the shell, a fixed partition is provided at the bottom of the concave step, and the fixed partition is slidably connected to the clamp head;

[0011] A sliding push plate is arranged on the top of the middle plate of the shell, a limiting groove is opened in the middle of the sliding push plate and is slidably connected to the clamp head, and one side of the sliding push plate is connected to the push-pull device.

[0012] When the device is working, the workpiece is placed in the middle of the two jigs, and the two jigs are pushed toward the middle of the workpiece respectively. Under the resistance of the workpiece, the fixture head will move toward the bottom of the middle plate of the shell, and the lifting column will move downward through the sliding groove on the fixed bottom plate, thereby driving the lifting column to compress the elastic part at the bottom, thereby the fixture heads of the two jigs respectively form curved surfaces that fit the workpiece, and then the push-pull device pushes the sliding push plate to one side, and the limit grooves respectively fit with the side surfaces of all the fixture heads, thereby forming a limit for the fixture heads, thereby ensuring that all the fixture heads correspond to the outer contour of the jig one by one, playing a clamping role, and facilitating subsequent continuous processing.

[0013] Furthermore, the elastic member is a first spring.

[0014] Furthermore, the bottom of the fixed base plate is connected to the shell bottom plate.

[0015] Furthermore, a top screw is provided on the other side of the sliding push plate, the top screw is connected to one end of a second spring, and the other end of the second spring is connected to the sliding push plate.

[0016] Furthermore, a threaded hole is opened on one side of the middle plate of the shell, and the threaded hole matches and connects to the push-pull device. The push-pull device includes a rotating screw rod, and the rear end of the rotating screw rod is connected to a rotating handle.

[0017] Furthermore, a plurality of positioning pins are provided at the top of the concave step, and the positioning pins are plugged into the fixed partition.

[0018] Furthermore, the top of the shell middle plate is connected to the shell upper plate, the shell upper plate is provided with a through groove to match and connect with the clamp head, a sealing groove is provided at the bottom of the through groove, a sealing ring seat is provided in the sealing groove, and a sealing ring is provided outside the sealing ring seat.

[0019] Furthermore, a second sliding hole is provided in the middle of the fixed partition plate and is slidably connected to the clamp head, and a flexible ring is provided in the second sliding hole.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0022] The utility model has a reasonable design, and the fixture heads arranged at the top can be designed to support different workpieces at multiple points, with strong applicability to curved surfaces, and more reliable individual clamping;

[0023] A push-pull device is provided to fix the sliding push plate, thereby positioning the fixture head, solving the problem of difficult clamping of special-shaped parts;

[0024] There is no need to set up special fixtures for different workpieces, and the same workpiece can be clamped quickly, which improves processing efficiency, shortens clamping time, has diverse uses, and does not require frequent fixture replacement.

[0025] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the explosion of the structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the sliding push plate of the utility model when it is taken out;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the two structures of the utility model when they are symmetrically arranged.

[0031] Reference numerals:

[0032] 1. Fixed bottom plate; 11. Shell bottom plate; 12. Second spring; 2. Sliding groove; 3. Lifting column; 4. Clamp head; 41. First spring; 5. Shell middle plate; 51. Shell upper plate; 52. Through groove; 53. Sealing groove; 54. Sealing ring seat; 55. Sealing ring; 6. Concave step; 61. Locating pin; 7. Fixed partition; 71. Flexible ring; 8. Sliding push plate; 12. Second spring; 9. Limiting groove; 10. Push-pull device; 101. Rotating screw rod; 102. Rotating handle. DETAILED DESCRIPTION

[0033] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0037] See attached Figure 1-5 , a special-shaped parts processing jig, comprising

[0038] A fixed base plate 1, wherein sliding grooves 2 are spaced apart on the fixed base plate 1, wherein the sliding grooves 2 are matched and connected to lifting columns 3, wherein the top of the lifting columns 3 is connected to a clamp head 4, and the bottom of the clamp head 4 is connected to the top of the fixed base plate 1 through an elastic member;

[0039] The shell middle plate 5 has the fixed bottom plate 1 at the bottom, a concave step 6 is opened in the middle of the top surface of the shell middle plate 5, a fixed partition plate 7 is provided at the bottom of the concave step 6, and the fixed partition plate 7 is slidably connected to the clamp head 4;

[0040] A sliding push plate 8 is arranged on the top of the shell middle plate 5, a limiting groove 9 is opened in the middle of the sliding push plate 8 and is slidably connected to the clamp head 4, and a side surface of the sliding push plate 8 is connected to a push-pull device 10.

[0041] When the device is working, the workpiece is placed in the middle of the two jigs, and the two jigs are pushed toward the middle of the workpiece respectively. Under the resistance of the workpiece, the clamp head 4 will move toward the bottom of the shell middle plate 5, and the lifting column 3 will move downward through the sliding groove 2 on the fixed bottom plate 1, thereby driving the lifting column 3 to compress the elastic part at the bottom, thereby the clamp heads 4 of the two jigs respectively form curved surfaces that fit the workpieces, and then the push-pull device 10 pushes the sliding push plate 8 to one side, and the limiting grooves 9 respectively fit with the side surfaces of all the clamp heads 4, thereby forming a limit for the clamp heads 4, thereby ensuring that all the clamp heads 4 correspond to the outer contours of the jigs one by one, playing a clamping role, and facilitating subsequent continuous processing.

[0042] The elastic member is a first spring 41. It should be noted that the elastic member may also be made of other materials with elasticity, such as an elastic diaphragm, a bellows, and a spring tube.

[0043] The bottom of the fixed bottom plate 1 is connected to the shell bottom plate 11, and the shell bottom plate 11 can protect the internal lifting column 3 from being damaged when it descends, and form a closed space at the bottom of the jig to prevent impurities from entering the interior, thereby increasing the service life of the device.

[0044] A top screw is provided on the other side of the sliding push plate 8, and the top screw is connected to one end of a second spring 12, and the other end of the second spring 12 is connected to the sliding push plate 8. After the sliding push plate 8 is pushed to one side of the second spring 12 by the push-pull device 10 and locked, when it is necessary to clamp and limit workpieces of other shapes, the push-pull device 10 is released, and the sliding push plate 8 is reset under the action of the second spring 12. Without the side pressure, the clamp head 4 can be reset to the top of the fixed partition 7 again.

[0045] A threaded hole is opened on one side of the shell middle plate 5, and the threaded hole is matched to connect the push-pull device 10. The push-pull device 10 includes a rotating screw 101. The rear end of the rotating screw 101 is connected to a rotating handle 102. When the rotating handle 102 rotates, it can drive the rotating screw 101 to move back and forth in the threaded hole. The end of the rotating screw 101 abuts against the sliding push plate 8. When the sliding push plate 8 is pushed outward, the clamp head 4 is positioned.

[0046] A plurality of positioning pins 61 are provided on the top of the concave step 6 , and the positioning pins 61 are inserted into the fixed partition 7 . The positioning pins 61 facilitate the installation of the fixed partition 7 .

[0047] The top of the shell middle plate 5 is connected to the shell upper plate 51. The shell upper plate 51 is provided with a through groove 52 which is matched with the clamp head 4. A sealing groove 53 is provided at the bottom of the through groove 52. A sealing ring seat 54 is provided in the sealing groove 53. A sealing ring 55 is provided outside the sealing ring seat 54. The shell upper plate 51 can protect the internal structure for safety. In order to improve the service life of the device, a sealing ring 55 is provided to cooperate with the sealing ring seat 54. When the clamp head 4 is extended or retracted, it can prevent external dust and impurities from entering the bottom through the through groove 52, causing the clamp head 4 to be stuck and limited when being extended or retracted.

[0048] A second sliding hole is provided in the middle of the fixed partition 7 and is slidably connected to the clamp head 4. A flexible ring 71 is provided in the second sliding hole. The flexible ring 71 can protect the clamp head 4 when it is extended and retracted, and increase the friction force on the clamp head 4 when the push-pull device 10 is locked and positioned.

[0049] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A special-shaped parts processing jig, characterized in that: include A fixed base plate (1), wherein sliding grooves (2) are spaced apart on the fixed base plate (1), wherein the sliding grooves (2) are matched and connected to lifting columns (3), wherein the top of the lifting columns (3) is connected to a clamp head (4), and the bottom of the clamp head (4) is connected to the top of the fixed base plate (1) via an elastic member; A shell middle plate (5) is provided with the fixed bottom plate (1) at the bottom, a concave step (6) is provided in the middle of the top surface of the shell middle plate (5), a fixed partition plate (7) is provided at the bottom of the concave step (6), and the fixed partition plate (7) is slidably connected to the clamp head (4); A sliding push plate (8) is arranged on the top of the shell middle plate (5), a limiting groove (9) is provided in the middle of the sliding push plate (8) and is slidably connected to the clamp head (4), and a side surface of the sliding push plate (8) is connected to a push-pull device (10).

2. The special-shaped parts processing jig according to claim 1, characterized in that: The elastic member is a first spring (41).

3. The special-shaped parts processing jig according to claim 1, characterized in that: The bottom of the fixed base plate (1) is connected to the housing base plate (11).

4. The special-shaped parts processing jig according to claim 1, characterized in that: A top screw is provided on the other side of the sliding push plate (8), the top screw is connected to one end of a second spring (12), and the other end of the second spring (12) is connected to the sliding push plate (8).

5. The special-shaped parts processing jig according to claim 1, characterized in that: A threaded hole is formed on one side of the shell middle plate (5), and the threaded hole is matched to connect to the push-pull device (10). The push-pull device (10) comprises a rotating screw rod (101), and the rear end of the rotating screw rod (101) is connected to a rotating handle (102).

6. The special-shaped parts processing jig according to claim 1, characterized in that: A plurality of positioning pins (61) are provided at the top of the concave step (6), and the positioning pins (61) are plugged into the fixed partition plate (7).

7. The special-shaped parts processing jig according to claim 1, characterized in that: The top of the shell middle plate (5) is connected to the shell upper plate (51), the shell upper plate (51) is provided with a through groove (52) for matching and connecting with the clamp head (4), the bottom of the through groove (52) is provided with a sealing groove (53), the sealing groove (53) is provided with a sealing ring seat (54), and the sealing ring seat (54) is provided with a sealing ring (55) outside.

8. The special-shaped parts processing jig according to claim 1, characterized in that: A second sliding hole is provided in the middle of the fixed partition plate (7) and is slidably connected to the clamp head (4), and a flexible ring (71) is provided in the second sliding hole.

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