Automobile ball head support rapid positioning machine tool clamp

Abstract

This utility model discloses a quick positioning machining fixture for automotive ball joint brackets, including an oil passage base plate. Three machining stations are spaced apart along the length of the upper side of the oil passage base plate. Each machining station includes a positioning block arranged side-by-side in the middle of the oil passage base plate. A positioning seat is correspondingly provided at the rear of each positioning block, and a first clamping cylinder is correspondingly provided at the front of each positioning block. A first pressing block is provided at the movable end of the first clamping cylinder. Second clamping cylinders are arranged side-by-side between adjacent positioning blocks. A connecting block is hinged to the top of the movable end of each second clamping cylinder, and both ends of the connecting block are hinged to second pressing blocks. This utility model solves the problems of existing fixtures being unable to quickly and accurately clamp ball joint brackets, insufficient repeatability of positioning and clamping, and easy shaking of the ball joint bracket during machining, resulting in low machining efficiency and affecting machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically a quick positioning machining fixture for automotive ball joint brackets. Background Technology

[0002] In the field of new energy vehicles, the ball joint bracket is a key component, and its quality directly affects the vehicle's driving performance and safety. This part has relatively weak structural rigidity and is highly susceptible to vibration caused by cutting forces and other factors during conventional machining processes. Once vibration occurs, it not only degrades the surface quality of the product but also is very likely to cause product deformation, resulting in dimensions exceeding tolerances and reduced product repeatability.

[0003] Traditional, conventional positioning methods, due to their inability to achieve precise and stable positioning and clamping of parts, further exacerbate the risk of deformation during processing. Moreover, this traditional method is cumbersome, time-consuming in clamping and positioning, and inefficient, making it completely unsuitable for the mass production of ball joint brackets for new energy vehicles. Therefore, the development of a highly efficient and precise machining fixture that can solve these problems is urgently needed. Utility Model Content

[0004] This utility model provides a quick positioning machining fixture for automotive ball joint brackets, which can solve the problems of existing fixtures being unable to quickly and accurately clamp the ball joint brackets, having insufficient repeatability in positioning and clamping, and the ball joint brackets being prone to shaking during processing, resulting in low processing efficiency and affecting processing accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning machine tool for automotive ball joint brackets, comprising an oil circuit base plate, wherein three sets of processing stations are spaced apart along the length of the upper side of the oil circuit base plate; each processing station includes positioning blocks arranged side by side in the middle of the oil circuit base plate, a positioning seat correspondingly provided at the rear of the positioning block, and a first clamping cylinder correspondingly provided at the front of the positioning block, wherein a first pressing block is provided at the movable end of the first clamping cylinder; a second clamping cylinder is arranged side by side between adjacent positioning blocks, wherein a connecting block is hinged to the top of the movable end of the second clamping cylinder, and a second pressing block is hinged to both ends of the connecting block; the positioning seat and the first pressing block quickly limit the ball joint bracket in the front-back direction, and the second pressing block and the positioning block quickly limit the ball joint bracket in the up-down direction, resulting in high repeatability, dimensional stability, improved processing efficiency, and simultaneous processing of six products, suitable for mass production.

[0006] As a supplement to the technical solution described in this utility model, the positioning block has weight-reducing notches at both the front and rear ends, a slot in the middle of the positioning block, and positioning bosses for supporting the ball head bracket at both the front and rear ends of the slot. A shallow groove is provided around the outer periphery of the positioning bosses. The key parts of the ball head bracket are supported by the four positioning bosses. The weight-reducing notches at the front and rear ends and the slot in the middle reduce the weight of the positioning block itself and avoid interference with non-processed parts of the product. The shallow groove around the outer periphery of the positioning bosses reduces the contact area between the positioning bosses and the product.

[0007] As a supplement to the technical solution described in this utility model, the bottom of the second pressing cylinder is detachably provided with a mounting bracket, which is installed on the oil circuit base plate by bolts and is used to fix the second pressing cylinder.

[0008] As a supplement to the technical solution described in this utility model, both ends of the mounting bracket are fixedly provided with upwardly extending support parts. The top of the support parts is provided with a connecting plate opposite to each other. One end of the connecting plate is hinged to the support part, and the other end is hinged to the middle of the second pressure block. Both ends of the connecting plate are respectively hinged to the support part and the second pressure block, forming a simple lever structure. When the second pressing cylinder drives the connecting block to move upward, the connecting block can transmit the driving force to the end of the second pressure block through the lever action of the connecting plate, so that the pressing head applies a stable and sufficient downward pressure to the ball head bracket.

[0009] As a supplement to the technical solution described in this utility model, the positioning seat and the first pressing block are both provided with V-shaped grooves on their respective inner sides. The V-shaped grooves lock the ball heads at both ends of the ball head bracket and limit their movement.

[0010] As a supplement to the technical solution described in this utility model, a clamping head is fixedly provided on the lower side of the end of the second pressure block. The lower end surface of the clamping head is provided with texture. The texture is used to increase the friction between the product and the clamping head and to prevent the product from shifting during clamping.

[0011] As a supplement to the technical solution described in this utility model, the upper side of the oil circuit base plate is provided with multiple nozzles to spray cutting fluid in a directional manner, thereby cooling the cutting tool and the machining area in real time, and simultaneously flushing away debris to prevent iron filings from adhering to the product surface or the cutting tool, thus ensuring the quality of the machined surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] It can process multiple ball joint supports simultaneously, greatly shortening the processing cycle and improving production efficiency. The ball joint supports are precisely positioned by positioning blocks and positioning seats, and the first and second clamping cylinders can stably clamp the ball joint supports. This solves the problems of existing fixtures being unable to clamp ball joint supports quickly and accurately, insufficient repeatability of positioning and clamping, and ball joint supports being prone to shaking during processing, resulting in low processing efficiency and affecting processing accuracy. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention in its working state;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention in its working state;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the second clamping cylinder of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the second pressing block of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the positioning block of this utility model;

[0020] Figure 7 This is an enlarged view of point A in this utility model.

[0021] Figure label:

[0022] 1. Oil circuit base plate, 2. Machining station, 3. Positioning block, 31. Weight reduction notch, 32. Groove, 33. Positioning boss, 34. Shallow groove, 35. Air inspection hole, 4. Positioning seat, 5. First clamping cylinder, 6. First clamping block, 7. Second clamping cylinder, 8. Connecting block, 9. Second clamping block, 91. Clamping head, 92. Texture, 10. Ball head bracket, 11. Mounting bracket, 12. Support part, 13. Connecting plate, 14. Nozzle. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] The embodiments of this utility model relate to a quick positioning machining fixture for automotive ball joint brackets, such as... Figure 1-7As shown, the fixture includes an oil circuit base plate 1, which serves as the basic mounting platform for the entire fixture, supporting all processing stations and components and ensuring the overall structural stability. Internally, it integrates oil and air passages to provide hydraulic power to the first clamping cylinder 5 and the second clamping cylinder 7, enabling automated clamping actions. Three sets of processing stations 2 are spaced apart along the length of the upper side of the oil circuit base plate 1, with each set holding two products. Each processing station 2 includes a positioning block 3 arranged side-by-side in the middle of the oil circuit base plate 1, with a positioning seat 4 correspondingly positioned at the rear of the positioning block 3. A first clamping cylinder 5 is provided at the front of the positioning block 3, and a first pressing block 6 is provided at the movable end of the first clamping cylinder 5; a second clamping cylinder 7 is arranged side by side between adjacent positioning blocks 3, and a connecting block 8 is hinged to the top of the movable end of the second clamping cylinder 7. A second pressing block 9 is hinged to both ends of the connecting block 8. The positioning seat 4 and the first pressing block 6 quickly limit the front and rear direction of the ball head bracket 10, and the second pressing block 9 and the positioning block 3 quickly limit the vertical direction of the ball head bracket 10. It has high repeatability, stable dimensions, and improves processing efficiency. It can process six products at the same time and is suitable for mass production.

[0025] In this embodiment, as Figure 6 As shown, the positioning block 3 has weight-reduction notches 31 at both its front and rear ends, a slot 32 in the middle, and positioning bosses 33 for supporting the ball head bracket 10 at both ends of the slot 32. A shallow groove 34 is provided around the outer periphery of each positioning boss 33, and air detection holes 35 are provided in the middle of two diagonally opposite positioning bosses 33. An air passage communicating with the air detection holes 35 is provided inside the oil circuit base plate 1 and the positioning block 3. The bottom of the product is placed on the positioning block 3, and the product is conditioned on the air... The inspection hole 35 is blocked. When the product is placed in place, the product will block the air inspection hole 35, and the air inspection hole 35 will spray gas. When the gas cannot be sprayed out to form a certain air pressure, it means that the product is installed in place. Otherwise, it means that the product is not installed in place. The key parts of the ball head bracket 10 are supported by four positioning bosses 33. The weight reduction notches 31 at the front and rear ends and the groove 32 in the middle reduce the weight of the positioning block itself and avoid interference with the product. The shallow groove 34 on the outer periphery of the positioning boss 33 reduces the contact area between the positioning boss and the product.

[0026] In this embodiment, as Figure 4 As shown, the bottom of the second clamping cylinder 7 is detachably provided with a mounting bracket 11, which is bolted to the oil circuit base plate 1 and is used to fix the second clamping cylinder 7.

[0027] In this embodiment, as Figure 4As shown, both ends of the mounting bracket 11 are fixedly provided with upwardly extending support parts 12. The top of the support parts 12 is provided with a connecting plate 13. One end of the connecting plate 13 is hinged to the support part 12, and the other end is hinged to the middle of the second pressure block 9. Both ends of the connecting plate 13 are respectively hinged to the support part 12 and the second pressure block 9, forming a simple lever structure. When the second pressing cylinder 7 drives the connecting block 8 to move upward, the connecting block 8 can transmit the driving force to the end of the second pressure block 9 through the lever action of the connecting plate 13, so that the pressing head 91 applies a stable and sufficient downward pressure to the ball head bracket.

[0028] In this embodiment, as Figure 2 As shown, the positioning seat 4 and the first pressing block 6 are both provided with V-shaped grooves on their respective inner sides. The V-shaped grooves hold the ball heads at both ends of the ball head bracket 10 and limit their movement. The positioning seat 4 and the first pressing block 6 can be made of POM or nylon to prevent scratching the product surface.

[0029] In this embodiment, as Figure 5 As shown, a clamping head 91 is fixedly provided on the lower side of the end of the second clamping block 9. The lower end surface of the clamping head 91 is provided with a texture 92. The texture 92 is used to increase the friction between the product and the clamping head 91 and prevent the product from shifting when clamped.

[0030] In this embodiment, as Figure 2 As shown, the upper side of the oil circuit base plate 1 is provided with multiple nozzles 14 to spray cutting fluid in a directional manner, thereby cooling the cutting tool and the machining area in real time, and washing away the chips to prevent the chips from sticking to the product surface or the cutting tool, thus ensuring the quality of the machined surface.

[0031] In this embodiment, as Figure 1 As shown, the worker takes the ball head bracket 10 to be processed and places its bottom stably on the positioning boss 33 of the positioning block 3. The rear of the ball head bracket 10 fits tightly with the positioning seat 4, completing the initial positioning. The first clamping cylinder 5 is activated, and the first clamping block 6 moves forward. Its inner V-shaped groove accurately locks the front cylindrical part of the ball head bracket 10, achieving initial fixation. Then, the second clamping cylinder 7 is activated. Through the transmission of the connecting block 8 and the connecting plate 13, the clamping head 91 at the end of the second clamping block 9 clamps the ball head bracket, completing the product fixation. After the air test is performed and the product is found to be in place, the machine tool and cutting fluid system can be turned on to perform milling operations.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A quick-positioning machining fixture for automotive ball joint brackets, characterized in that, include: Oil circuit base plate (1), and three sets of processing stations (2) are arranged at intervals along its length on the upper side of the oil circuit base plate (1); The processing station (2) includes positioning blocks (3) arranged side by side in the middle of the oil circuit base plate (1), a positioning seat (4) is provided at the rear of the positioning block (3), a first pressing cylinder (5) is provided at the front of the positioning block (3), and a first pressing block (6) is provided at the movable end of the first pressing cylinder (5). A second pressing cylinder (7) is arranged side by side between adjacent positioning blocks (3). A connecting block (8) is hinged to the top of the movable end of the second pressing cylinder (7). Both ends of the connecting block (8) are hinged to a second pressing block (9).

2. The quick positioning machining fixture for automotive ball joint brackets according to claim 1, characterized in that: The positioning block (3) has weight reduction notches (31) at both the front and rear ends. The positioning block (3) has a slot (32) in the middle. The slot (32) has positioning bosses (33) at both the front and rear ends for supporting the ball head bracket (10). The positioning bosses (33) have a shallow groove (34) around their outer periphery.

3. The quick positioning machining fixture for automotive ball joint brackets according to claim 1, characterized in that: The bottom of the second clamping cylinder (7) is detachably provided with a mounting bracket (11), which is mounted on the oil circuit base plate (1) by bolts.

4. The quick positioning machining fixture for automotive ball joint brackets according to claim 3, characterized in that: Both ends of the mounting bracket (11) are fixedly provided with upwardly extending support parts (12), and the top of the support parts (12) is provided with a connecting plate (13) opposite to it. One end of the connecting plate (13) is hinged to the support parts (12), and the other end is hinged to the middle of the second pressure block (9).

5. The quick positioning machining fixture for automotive ball joint brackets according to claim 1, characterized in that: The positioning seat (4) and the first pressing block (6) are both provided with V-shaped grooves on their respective inner sides.

6. The quick positioning machining fixture for automotive ball joint brackets according to claim 1, characterized in that: A pressing head (91) is fixedly provided on the lower side of the end of the second pressing block (9), and the lower end surface of the pressing head (91) is provided with texture (92).

7. The quick positioning machining fixture for automotive ball joint brackets according to claim 1, characterized in that: Multiple nozzles (14) are provided on the upper side of the oil circuit base plate (1).

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