Fixture for milling automobile parts

Abstract

According to the clamp for milling the automobile parts, a first end positioning device and a second end positioning device which are used for positioning the corresponding ends of a semi-finished product workpiece in a vertical state are arranged at the two ends of the side wall, facing the side of a right clamping block, of a left clamping block correspondingly; a semi-finished workpiece of which the end part is positioned on the left clamping block is clamped and fixed by the left clamping block and a right clamping block which is detachably and fixedly connected with the left clamping block; a first positioning half groove and a second positioning half groove are formed in the upper end face of the left clamping block and the upper end face of the right clamping block, the groove depths of the first positioning half groove and the second positioning half groove are smaller than or equal to the thickness of a semi-finished workpiece, and the first positioning half groove and the second positioning half groove are spliced to form a positioning clamping groove used for positioning and fixing the horizontally-placed semi-finished workpiece when the left clamping block and the right clamping block are combined and fixedly connected. According to the utility model, the problem that the outer contour of a semi-finished workpiece and the characteristic hole slots at the two end parts are difficult to process is solved, the processing difficulty is reduced, the processing procedure is simplified, the processing efficiency is improved, the contour and the characteristic hole slots of the semi-finished workpiece can be processed by one set of fixture, the utilization rate is high, and the positioning precision is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tool fixture technical field, concretely relates to a fixture for milling of automobile parts. BACKGROUND

[0002] Automobile parts are various units constituting the whole automobile and a kind of product serving automobile, and the types of automobile parts are various, with the improvement of people's living standards, people's consumption of automobile is more and more, and the market of automobile parts becomes larger and larger, in recent years, automobile parts manufacturing plants are also developing rapidly, in the processing of automobile parts, the processing difficulty of the automobile parts is big, and the processing efficiency is low. Figures 4-5 When the workpiece shown in the figure is processed, first, the wire cutting is cut into the shape of the semi-finished workpiece 3 according to the workpiece drawing size and characteristics, and then the semi-finished workpiece 3 is machined according to the drawing requirements, because the shape of the automobile parts is irregular, the clamping and fixing exist difficulty, the big end of the semi-finished workpiece 3 has an opening groove 8 communicated with the middle through hole, and there is difficulty in machining the characteristic hole 11 on the side wall of the big end of the semi-finished workpiece 3, and the small end of the semi-finished workpiece 3 and the characteristic groove on the side wall are all characteristic, therefore, in order to reduce the processing difficulty, simplify the processing procedure and improve the processing efficiency, it is necessary to design a clamp for positioning and clamping the semi-finished workpiece 3. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem: provide a kind of clamp for milling of automobile parts, according to the shape characteristics of semi-finished workpiece, the structure of left clamping block and right clamping block combined solid connection of inside wall being equipped with end positioning device one and end positioning device two is positioned and fixed to the small end and big end of semi-finished workpiece, realize the processing of semi-finished workpiece small end characteristic hole slot and big end characteristic hole in turn, and positioning half slot one and positioning half slot two are respectively arranged on the upper end surface of left clamping block and right clamping block, so that the left clamping block and right clamping block are combined and connected to form the positioning clamping groove for positioning and fixing the semi-finished workpiece placed horizontally, solve the problem of big processing difficulty of semi-finished workpiece contour and two end characteristic hole slot, reduce the processing difficulty, simplify the processing procedure, improve the processing efficiency, a set of clamp can realize the processing of contour and characteristic hole slot of semi-finished workpiece, the utilization rate is high, the positioning precision is high, and it provides convenience for the processing of semi-finished workpiece.

[0004] The technical solution adopted by this utility model is: a fixture for milling automotive parts, including a left clamping block and a right clamping block. The left clamping block has end positioning device one and end positioning device two respectively formed on the two ends of its side wall facing the right clamping block for positioning the corresponding ends of a vertical semi-finished workpiece. The semi-finished workpiece whose end is positioned on the left clamping block is clamped and fixed by the left clamping block and the right clamping block which is detachably fixed to the left clamping block. The upper end surfaces of the left and right clamping blocks have positioning half-grooves one and two with a groove depth less than / the thickness of the semi-finished workpiece. When the left and right clamping blocks are combined and fixed, positioning half-grooves one and two are spliced ​​together to form a positioning clamping groove for positioning and fixing a horizontally placed semi-finished workpiece.

[0005] The end positioning device includes an end positioning groove and a positioning plate. The side wall of the left clamping block facing the right clamping block is provided with an end positioning groove that is adapted to the small end and middle of the semi-finished workpiece. The opening groove of the large end of the semi-finished workpiece, which is adapted to the end positioning groove, extends out of the end positioning groove. The groove surface of the end positioning groove is provided with a positioning protrusion whose height is not greater than the depth of the end positioning groove. The outer end of the positioning plate is located in the opening groove and is used to prevent deformation positioning of the large end of the semi-finished workpiece. The inner end of the positioning plate is located in the middle through hole of the semi-finished workpiece and is adapted to the positioning protrusion for positioning. The small end of the semi-finished workpiece is clamped and fixed when the left clamping block and the right clamping block are combined and fixed.

[0006] Furthermore, the positioning plate adopts an integrated structure consisting of a positioning rod with an outer end adapted to the opening groove and an inner circular plate. The square hole in the middle of the inner circular plate of the positioning plate is adapted to a positioning protrusion with a square cross-section. The side wall of the positioning rod at the outer end of the positioning plate is provided with an obstacle avoidance hole for unobstructed processing of the feature hole on the side wall of the large end of the semi-finished workpiece.

[0007] Furthermore, the second end positioning device includes a second end positioning groove. The other end of the side wall of the left clamping block facing the right clamping block is provided with a second end positioning groove that is adapted to the large end and middle of the semi-finished workpiece. The small end of the semi-finished workpiece adapted to the large end is provided with the end positioning groove located on the lower end surface of the left clamping block. The large end of the semi-finished workpiece is clamped and fixed when the left clamping block and the right clamping block are combined and fixed.

[0008] Furthermore, the upper surface of the left clamping block has two symmetrically arranged positioning half-grooves with slots facing the right clamping block, and the upper surface of the right clamping block has two symmetrically arranged slots with slots facing the left clamping block.

[0009] Furthermore, the left and right clamping blocks each have corresponding connecting holes on their side walls, and bolts and nuts passing through the connecting holes are fitted together to achieve a detachable fixed connection when the left and right clamping blocks are combined.

[0010] Advantages of this utility model compared to the prior art:

[0011] 1. Based on the shape characteristics of the semi-finished workpiece, this technical solution adopts a structure in which the left clamping block and the right clamping block are fixed together with the end positioning device 1 and the end positioning device 2 on the inner side wall to position and fix the small end and the large end of the semi-finished workpiece. This enables the sequential processing of the feature holes and grooves at the small end and the feature holes at the large end of the semi-finished workpiece, simplifies the processing steps of processing the two ends of the semi-finished workpiece, reduces the processing difficulty, and improves the processing accuracy and efficiency.

[0012] 2. This technical solution sets positioning half-groove one and positioning half-groove two on the upper end face of the left clamping block and the right clamping block respectively, so that when the left clamping block and the right clamping block are combined and fixed, they are spliced ​​to form a positioning clamping groove for positioning and fixing the horizontally placed semi-finished workpiece, thereby achieving high-efficiency processing of the upper, lower and left and right contour surfaces of the semi-finished workpiece, reducing clamping difficulty and achieving high processing consistency.

[0013] 3. This technical solution has a simple structure, novel design, and low cost. It solves the problem of high processing difficulty of the outer contour and feature holes and grooves at both ends of the semi-finished workpiece, reduces processing difficulty, simplifies processing procedures, and improves processing efficiency. One set of fixtures can realize the processing of the contour and feature holes and grooves of the semi-finished workpiece, with high utilization rate and high positioning accuracy, providing convenience for the processing of semi-finished workpieces. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the positioning and clamping groove structure when the left and right clamping blocks of this utility model are combined and fixed together.

[0015] Figure 2 This is a schematic diagram showing the positions of end positioning groove one and end positioning groove two on the left clamping block of this utility model;

[0016] Figure 3 This is a schematic diagram showing the small end and middle part of the semi-finished workpiece of this utility model positioned on the left clamping block.

[0017] Figure 4 This is the front view of the workpiece;

[0018] Figure 5 This is the right view of the workpiece. Detailed Implementation

[0019] The following will be based on the embodiments of this utility model. Figures 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Fixtures for milling automotive parts, such as Figures 1-3As shown, the device includes a left clamping block 1 and a right clamping block 2. The left clamping block 1 has two end-positioning devices, one for positioning the corresponding end of a vertically positioned semi-finished workpiece 3, on its sidewalls facing the right clamping block 2. The semi-finished workpiece 3, with its end positioned on the left clamping block 1, is clamped and fixed by the left clamping block 1 and the right clamping block 2, which is detachably and fixedly connected to the left clamping block 1. The upper surfaces of the left clamping block 1 and the right clamping block 2 have a positioning half-groove with a depth less than 1 / 2 the thickness of the semi-finished workpiece 3. Positioning half-groove 4 and positioning half-groove 5 are joined together when the left clamping block 1 and the right clamping block 2 are combined and fixed to form a positioning clamping groove for positioning and fixing the horizontally placed semi-finished workpiece 3; in the above structure, by setting positioning half-groove 4 and positioning half-groove 5 on the upper end faces of the left clamping block 1 and the right clamping block 2 respectively, the positioning clamping groove is formed when the left clamping block 1 and the right clamping block 2 are combined and fixed to form a positioning clamping groove for positioning and fixing the horizontally placed semi-finished workpiece 3, thereby realizing the positioning and fixing of the semi-finished workpiece. The high-efficiency machining of the upper, lower, left, and right contour surfaces of workpiece 3 reduces clamping difficulty and ensures high machining consistency. Since the groove depth of positioning half-groove 1 4 and positioning half-groove 2 5 is less than 1 / 2 the thickness of the semi-finished workpiece 3, after the upper end face, two sides, and two ends of the semi-finished workpiece 2 are machined, the outer contour machining of the semi-finished workpiece 2 can be achieved by reversing the clamping and machining the original lower end face, two sides, and two ends of the semi-finished workpiece 2. This greatly simplifies the machining process of the semi-finished workpiece 3 and improves machining efficiency. According to the shape characteristics of the semi-finished workpiece 3, the left clamping block 1 and the right clamping block 2, which are equipped with end positioning device 1 and end positioning device 2 on the inner side wall, are combined and fixed to position and fix the small end and the large end of the semi-finished workpiece 3. This enables the sequential machining of the feature hole groove at the small end and the feature hole at the large end of the semi-finished workpiece 3, simplifies the machining process of the two ends of the semi-finished workpiece 3, reduces machining difficulty, and improves machining accuracy and efficiency.

[0023] like Figures 2-3As shown, the specific structure of the end positioning device is as follows: The end positioning device includes an end positioning groove 6 and a positioning plate 7. The side wall of the left clamping block 1 facing the right clamping block 2 has an end positioning groove 6 that adapts to the small end and middle of the semi-finished workpiece 3. The opening groove 8 of the large end of the semi-finished workpiece 3, which adapts to the end positioning groove 6, extends out of the end positioning groove 6. A positioning protrusion 9 with a height not greater than the depth of the end positioning groove 6 is formed on the groove surface of the end positioning groove 6. The outer end of the positioning plate 7 is located within the opening groove 8 and is used to prevent deformation positioning of the large end of the semi-finished workpiece 3. The inner end of the positioning plate 7 is located within the middle through hole of the semi-finished workpiece 3 and is adapted to the positioning protrusion 9 for positioning. The small end of the semi-finished workpiece 3 is clamped and fixed when the left clamping block 1 and the right clamping block 2 are combined and fixed. The positioning plate 7 uses a positioning rod with an outer end adapted to the opening groove 8 and an inner end... The positioning plate 7 is an integral structure composed of circular plates. The square hole in the middle of the inner circular plate of the positioning plate 7 is adapted to the positioning protrusion 9 with a square cross-section. The positioning rod sidewall of the outer end of the positioning plate 7 is provided with an obstacle avoidance hole for unobstructed processing of the feature hole 11 on the sidewall of the large end of the semi-finished workpiece 3. In the above structure, after the end positioning groove 6 is inserted and clamped and fixed when the left clamping block 1 and the right clamping block 2 are combined and fixed, the feature hole 11 can be processed on the sidewall of the large end of the semi-finished workpiece 3. During processing, since the large end of the semi-finished workpiece 3 has an opening groove 8, it is specially designed to ensure that the positioning plate 7 is adapted to the opening groove 8 to position its two sides, ensuring the accuracy of the large end of the semi-finished workpiece 3 during the processing of the feature hole 11, and ensuring the processing accuracy of the feature hole 11. The positioning plate 7, through the structure of the square hole and the positioning protrusion 9, can ensure that the position of the positioning rod of the positioning plate 8 does not move, and ensure that the forces on both sides of the opening groove 8 are balanced.

[0024] like Figures 2-3 As shown, the specific structure of the end positioning device two is as follows: The end positioning device two includes an end positioning groove two 10. The other end of the side wall of the left clamping block 1 facing the right clamping block 2 is provided with an end positioning groove two 10 that is adapted to the large end and middle of the semi-finished workpiece 3. The small end of the semi-finished workpiece 3, which is adapted to the end positioning groove two 10, extends out of the groove and is located on the lower end surface of the left clamping block 1. The large end of the semi-finished workpiece 3 is clamped and fixed when the left clamping block 1 and the right clamping block 2 are combined and fixed. With the above structure, the small end of the semi-finished workpiece 3 extends out of the left clamping block 1 and the right clamping block 2, which facilitates the processing of the feature holes and grooves of the small end.

[0025] This technical solution features a simple structure, novel design, and low cost. It solves the problem of difficult machining of the outer contour and feature holes and grooves at both ends of semi-finished workpieces, reduces machining difficulty, simplifies machining processes, and improves machining efficiency. A single set of fixtures can be used to machine the contour and feature holes and grooves of semi-finished workpieces, resulting in high utilization and high positioning accuracy, thus providing convenience for the machining of semi-finished workpieces.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for milling automotive parts, characterized in that: The device includes a left clamping block (1) and a right clamping block (2). The left clamping block (1) has two end positioning devices, one for positioning the corresponding end of the vertical semi-finished workpiece (3), on its sidewall facing the right clamping block (2). The semi-finished workpiece (3) whose end is positioned on the left clamping block (1) is clamped and fixed by the left clamping block (1) and the right clamping block (2) which is detachably fixed to the left clamping block (1). The upper surfaces of the left clamping block (1) and the right clamping block (2) have a positioning half-groove one (4) and a positioning half-groove two (5) with a groove depth less than 1 / 2 the thickness of the semi-finished workpiece (3). The positioning half-groove one (4) and the positioning half-groove two (5) are spliced ​​together when the left clamping block (1) and the right clamping block (2) are combined and fixed to form a positioning clamping groove for positioning and fixing the horizontally placed semi-finished workpiece (3).

2. The fixture for milling automotive parts according to claim 1, characterized in that: The end positioning device includes an end positioning groove (6) and a positioning plate (7). The left clamping block (1) has an end positioning groove (6) on one side wall facing the right clamping block (2) that is adapted to the small end and middle part of the semi-finished workpiece (3). The small end is adapted to the large end of the semi-finished workpiece (3) with the opening groove (8) extending out of the end positioning groove (6). The groove surface of the end positioning groove (6) has a positioning protrusion (9) with a height not greater than the depth of the end positioning groove (6). The outer end of the positioning plate (7) is located in the opening groove (8) and is used to prevent deformation positioning of the large end of the semi-finished workpiece (3). The inner end of the positioning plate (7) is located in the middle through hole of the semi-finished workpiece (3) and is adapted to the positioning protrusion (9). The small end of the semi-finished workpiece (3) is clamped and fixed when the left clamping block (1) and the right clamping block (2) are combined and fixed.

3. The fixture for milling automotive parts according to claim 2, characterized in that: The positioning plate (7) is an integral structure consisting of a positioning rod that is adapted to the opening groove (8) at the outer end and a circular plate at the inner end. The square hole in the middle of the circular plate at the inner end of the positioning plate (7) is adapted to the positioning protrusion (9) with a square cross-section. The side wall of the positioning rod at the outer end of the positioning plate (7) is provided with an obstacle avoidance hole for the unobstructed processing of the feature hole (11) on the side wall of the large end of the semi-finished workpiece (3).

4. The fixture for milling automotive parts according to claim 1, characterized in that: The second end positioning device includes a second end positioning groove (10). The other end of the side wall of the left clamping block (1) facing the right clamping block (2) is provided with a second end positioning groove (10) that is adapted to the large end and middle of the semi-finished workpiece (3). The small end of the semi-finished workpiece (3) adapted to the large end is located in the second end positioning groove (10) on the lower end surface of the left clamping block (1). The large end of the semi-finished workpiece (3) is clamped and fixed when the left clamping block (1) and the right clamping block (2) are combined and fixed.

5. The fixture for milling automotive parts according to claim 1, characterized in that: The upper end face of the left clamping block (1) has two symmetrically arranged positioning half-grooves (4) with slots facing the right clamping block (2), and the upper end face of the right clamping block (2) has two symmetrically arranged slots facing the left clamping block (1).

6. The fixture for milling automotive parts according to any one of claims 1-5, characterized in that: Both the left clamping block (1) and the right clamping block (2) have corresponding connecting holes (12) on their side walls, and bolts and nuts passing through the connecting holes (12) are adapted to connect, so as to realize the detachable fixed connection when the left clamping block (1) and the right clamping block (2) are combined.

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