Quick positioning four-axis clamp for steering knuckle machining

Abstract

The utility model discloses a quick positioning four-axis clamp for steering knuckle machining. The quick positioning four-axis clamp comprises a bridge plate. A cushion block is installed below the bridge plate, a speed regulation valve seat is installed above the bridge plate, an oil inlet speed regulation valve is installed on the speed regulation valve seat, and a positioning structure, a pressing structure and a locking structure are installed above the bridge plate. During use, a steering knuckle blank is placed on the profiling positioning block, the profiling positioning block is attached to the end face of a steering knuckle supporting arm, the three first lever pressing plates penetrate through a center hole of a blank piece, meanwhile, the rhombic pin is embedded into a groove hole of the steering knuckle blank piece, coarse positioning of the blank piece is achieved, then the first lever cylinder, the second lever cylinder and the corner cylinder are started at the same time, and the steering knuckle blank piece is positioned. The first lever pressing plate, the second lever pressing plate, the first corner pressing plate and the second corner pressing plate can be driven to press the surface of the steering knuckle blank, rapid positioning and locking of the steering knuckle blank are achieved, frequent manual locking operation is not needed, and the repeated positioning precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology for automotive parts, specifically a four-axis quick-positioning fixture for machining steering knuckles. Background Technology

[0002] The four-axis steering knuckle fixture is a machine tool fixture specifically designed for the machining of automotive steering knuckles. It can achieve multi-angle positioning and clamping and is suitable for the precision machining of complex spatial irregular parts such as steering knuckles.

[0003] In the existing technology, when machining steering knuckle blanks, a four-axis fixture is required for clamping and fixing. However, the existing four-axis fixtures rely on manual locking with multiple bolts, which results in a lot of time being spent clamping the workpiece and is prone to inconsistent locking force at different positions. During multiple positioning, the deviation between the actual position and the target position is large, affecting the accuracy of repeated positioning. Therefore, a quick positioning four-axis fixture for steering knuckle machining is needed to meet people's needs. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-positioning four-axis fixture for steering knuckle machining, so as to solve the problem mentioned in the background art that the four-axis fixture relies on multiple bolts for manual locking, which results in a lot of time being spent clamping the workpiece, and the deviation between the actual position and the target position is large during multiple positioning, affecting the accuracy of repeated positioning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-positioning four-axis fixture for steering knuckle machining, comprising a bridge plate; a pad is installed below the bridge plate, a speed control valve seat is installed above the bridge plate, an oil inlet speed control valve is installed on the speed control valve seat, and a positioning structure, a clamping structure, and a locking structure are installed above the bridge plate.

[0006] Preferably, the positioning structure includes a contour positioning block seat, which is installed above the bridge plate, and a contour positioning block is detachably installed on the contour positioning block seat.

[0007] Preferably, the positioning structure further includes a CSY06 support cylinder seat and a pin seat. Both the CSY06 support cylinder seat and the pin seat are installed above the bridge plate. A support cylinder is installed on the CSY06 support cylinder seat, and a flat-head muffler and a CSY06 support head are installed on the support cylinder. A diamond pin is installed on the pin seat.

[0008] Preferably, the clamping structure includes a center seat, which is installed above the bridge plate. A lever cylinder is installed on the center seat. A connector is installed on the telescopic end of the lever cylinder. Three lever pressure plates are rotatably installed on the connector. A connecting rod is rotatably installed on one side of each of the three lever pressure plates. A connecting seat is rotatably installed on one end of each of the three connecting rods. All three connecting seats are installed on the lever cylinder.

[0009] Preferably, the locking structure includes two mounting seats. A lever cylinder II is installed inside the mounting seat. A lever pressure plate II is rotatably mounted on the telescopic end of the lever cylinder II. A connecting rod II is rotatably mounted on the lever pressure plate II. One end of the connecting rod II is rotatably mounted on the lever cylinder II. A flange support cylinder I is installed inside the mounting seat. A support cylinder top is installed on the flange support cylinder I.

[0010] Preferably, the locking structure further includes four corner cylinders, which are symmetrically arranged on the bridge plate. The telescopic ends of the four corner cylinders are respectively equipped with two corner pressure plates and two corner pressure plates. A support cylinder mounting plate is installed below the bridge plate. Four flange support cylinders are symmetrically installed on the support cylinder mounting plate. All four flange support cylinders are installed inside the bridge plate, and each of the four flange support cylinders is equipped with a support cylinder top.

[0011] Preferably, a moving steel ball screw is installed on each of the lever pressure plate two, the corner pressure plate one, and the corner pressure plate two.

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

[0013] (1) In use, the steering knuckle blank is placed on the contour positioning block, which fits the end face of the steering knuckle arm. The center hole of the blank passes through the three lever pressure plates, and the diamond pin is embedded in the slot of the steering knuckle blank to achieve rough positioning of the blank. Then, lever cylinder one, lever cylinder two and corner cylinder are opened at the same time, which can drive the corresponding lever pressure plate one, lever pressure plate two, corner pressure plate one and corner pressure plate two to press on the surface of the steering knuckle blank, so as to achieve rapid positioning and locking of the steering knuckle blank, thereby eliminating the need for frequent manual locking and improving the repeatability accuracy. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a four-axis quick-positioning fixture for machining steering knuckles proposed in this utility model;

[0015] Figure 2 This is a top view of a four-axis quick-positioning fixture for machining steering knuckles, as proposed in this utility model.

[0016] Figure 3 This is a side view of a four-axis quick-positioning fixture for machining steering knuckles proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the contour positioning block structure of a quick positioning four-axis fixture for machining steering knuckles proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the center seat structure of a four-axis quick-positioning fixture for machining steering knuckles proposed in this utility model;

[0019] Figure 6 This is a schematic diagram of the joint structure of a quick-positioning four-axis fixture for machining steering knuckles proposed in this utility model;

[0020] Figure 7 This is a schematic diagram of the lever pressure plate structure of a quick positioning four-axis fixture for steering knuckle machining proposed in this utility model;

[0021] Figure 8 This is a schematic diagram of the corner pressure plate of a quick positioning four-axis fixture for machining steering knuckles proposed in this utility model;

[0022] Figure 9 This is a schematic diagram of the corner pressure plate of a quick positioning four-axis fixture for steering knuckle processing proposed in this utility model;

[0023] Figure 10 This is a schematic diagram of the CSY06 support cylinder seat and pin seat structure of a quick positioning four-axis fixture for steering knuckle machining proposed in this utility model.

[0024] In the diagram: 100, bridge plate; 101, pad block; 102, speed control valve seat; 103, oil inlet speed control valve; 200, contour positioning block seat; 201, contour positioning block; 202, center seat; 203, connector; 204, lever pressure plate one; 205, connecting rod one; 206, connecting seat; 207, CSY06 support cylinder seat; 208, support cylinder; 209, flat-head muffler; 210, CSY06 support head; 211. 212. Pin seat; 213. Diamond pin; 300. Lever cylinder one; 301. Mounting seat; 302. Lever cylinder two; 303. Lever pressure plate two; 304. Connecting rod two; 305. Moving ball screw; 306. Flange support cylinder one; 407. Support cylinder top one; 400. Corner cylinder; 401. Corner pressure plate one; 402. Corner pressure plate two; 403. Flange support cylinder two; 404. Support cylinder top two; 405. Support cylinder mounting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-10This utility model provides a technical solution: a quick positioning four-axis fixture for steering knuckle machining, including a bridge plate 100; a pad 101 is installed below the bridge plate 100, a speed regulating valve seat 102 is installed above the bridge plate 100, an oil inlet speed regulating valve 103 is installed on the speed regulating valve seat 102, and a positioning structure, a clamping structure and a locking structure are installed above the bridge plate 100.

[0027] Furthermore, the positioning structure includes a contour positioning block seat 200, which is installed above the bridge plate 100. A contour positioning block 201 is detachably installed on the contour positioning block seat 200. The contour positioning block 201 and the contour positioning block seat 200 can be fixed with bolts, so that the contour positioning block 201 can be removed from the contour positioning block seat 200. A contour positioning block 201 that matches the hole in the steering knuckle blank can be selected for installation. When in use, the hole on the steering knuckle blank is aligned with the contour positioning block 201 and fitted on.

[0028] Furthermore, the positioning structure also includes a CSY06 support cylinder seat 207 and a pin seat 211. Both the CSY06 support cylinder seat 207 and the pin seat 211 are installed above the bridge plate 100. A support cylinder 208 is installed on the CSY06 support cylinder seat 207. A flat-head muffler 209 and a CSY06 support head 210 are installed on the support cylinder 208. A diamond pin 212 is installed on the pin seat 211. Other components of the steering knuckle blank are located on the corresponding CSY06 support head 210, diamond pin 212, support cylinder top head 1 306, and support cylinder top head 2 404, respectively, so that the diamond pin 212 can be embedded into the corresponding hole on the steering knuckle blank for positioning.

[0029] Furthermore, the clamping structure includes a center seat 202, which is installed above the bridge plate 100. A lever cylinder 213 is installed on the center seat 202. A connector 203 is installed on the telescopic end of the lever cylinder 213. Three lever pressure plates 204 are rotatably installed on the connector 203. A connecting rod 205 is rotatably installed on one side of each of the three lever pressure plates 204. A connecting seat 206 is rotatably installed on one end of each of the three connecting rods 205. The three connecting seats 206 are all installed on the lever cylinder 213. When the center hole of the steering knuckle blank is passed through the three lever pressure plates 204, the lever cylinder 213 can be opened to drive the connector 203 to move. The moving connector 203 will simultaneously drive the multiple lever pressure plates 204 to rotate. The flipped multiple lever pressure plates 204 will press against the surface of the steering knuckle blank.

[0030] Furthermore, the locking structure includes two mounting seats 300. A second lever cylinder 301 is installed inside the mounting seat 300. A second lever pressure plate 302 is rotatably mounted on the telescopic end of the second lever cylinder 301. A second connecting rod 303 is rotatably mounted on the second lever pressure plate 302. One end of the second connecting rod 303 is rotatably mounted on the second lever cylinder 301. A first flange support cylinder 305 is installed inside the mounting seat 300. A first support cylinder top 306 is installed on the first flange support cylinder 305. When the corresponding second lever cylinder 301 is opened, the output end of the second lever cylinder 301 extends and drives the second lever pressure plate 302 to rotate. The rotated second lever pressure plate 302 will rotate on the second connecting rod 303 and drive the second connecting rod 303 to rotate. The continuously rotating second lever pressure plate 302 will drive the moving steel ball screw 304 to press on the steering knuckle blank.

[0031] Furthermore, the locking structure also includes four corner cylinders 400, which are symmetrically arranged on the bridge plate 100. The telescopic ends of the four corner cylinders 400 are respectively equipped with two corner pressure plates 401 and two corner pressure plates 402. A support cylinder mounting plate 405 is installed below the bridge plate 100. Four flange support cylinders 403 are symmetrically installed on the support cylinder mounting plate 405. All four flange support cylinders 403 are installed inside the bridge plate 100. Each of the four flange support cylinders 403 is equipped with a support cylinder top 404. Opening the corresponding corner cylinder 400 will drive the corresponding corner pressure plate 401 or corner pressure plate 402 to descend and move, so that the corner pressure plate 401 and corner pressure plate 402 drive the moving steel ball screw 304 to press against the surface of the steering knuckle blank.

[0032] Furthermore, each of the lever pressure plate 2 302, the corner pressure plate 1 401, and the corner pressure plate 2 402 is equipped with a moving steel ball screw 304. When clamping the workpiece, the steel ball at the end of the moving steel ball screw 304 will make point contact with the workpiece, reducing the contact area and lowering the risk of deformation.

[0033] The working principle is as follows: the contour positioning block 201 and the contour positioning block seat 200 can be fixed with bolts, allowing the contour positioning block 201 to be removed from the contour positioning block seat 200. A contour positioning block 201 that matches the hole in the steering knuckle blank can be selected for installation. During use, align the hole on the steering knuckle blank with the contour positioning block 201 and fit it in. Simultaneously, the center hole of the steering knuckle blank will pass through the three lever pressure plates 204. The other components of the steering knuckle blank are respectively located at the corresponding CSY06 support head 210, diamond pin 212, support cylinder top head 306, and support... On cylinder head 204, lever cylinder 213 can be activated to move connector 203. The moving connector 203 will simultaneously rotate multiple lever pressure plates 204, causing them to flip on connecting rod 205. During this process, connecting rod 205 will flip on the corresponding connecting seat 206, allowing it to adapt to the angle changes of lever pressure plates 204. The flipped lever pressure plates 204 will press against the surface of the steering knuckle blank, achieving initial positioning of the steering knuckle blank. Subsequently, the corresponding angle cylinder 400 and lever cylinder 213 are activated. 01. The output end of the angle cylinder 400 will drive the corresponding angle pressure plate 1 401 or angle pressure plate 2 402 to move downwards, causing angle pressure plate 1 401 and angle pressure plate 2 402 to drive the moving steel ball screw 304 to press against the surface of the steering knuckle blank. Meanwhile, the output end of the lever cylinder 2 301 extends and drives the lever pressure plate 2 302 to flip. The flipped lever pressure plate 2 302 will rotate on the connecting rod 2 303 and drive the connecting rod 2 303 to flip. The continuously flipped lever pressure plate 2 302 will drive the moving steel ball screw 304 to press against the steering knuckle blank, thereby pressing against the lever pressure plate 2 302 and the angle cylinder. Under the action of 400 and the first angle pressure plate 401, the steering knuckle blank can be pressed onto the CSY06 support head 210, diamond pin 212, support cylinder top head 306 and support cylinder top head 404, thus achieving the clamping and fixing of the steering knuckle blank. The automotive steering knuckle is usually designed with left and right symmetry. When the clamp is installed, only the second lever pressure plate 302, the angle cylinder 400 and the first angle pressure plate 401 on one side are used. After the current automotive steering knuckle is removed, the second lever pressure plate 302, the angle cylinder 400 and the first angle pressure plate 401 on the other side are used to clamp the mirror image steering knuckle blank in the opposite direction.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. The circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art, so there is no need to elaborate. The content protected by the present invention does not involve improvements to software and methods.

Claims

1. A four-axis quick-positioning fixture for machining steering knuckles, comprising a bridge plate (100); characterized in that: A pad (101) is installed below the bridge plate (100), a speed regulating valve seat (102) is installed above the bridge plate (100), an oil inlet speed regulating valve (103) is installed on the speed regulating valve seat (102), and a positioning structure, a pressing structure and a locking structure are installed above the bridge plate (100). The positioning structure includes a contour positioning block seat (200), which is installed above the bridge plate (100), and a contour positioning block (201) is detachably installed on the contour positioning block seat (200). The clamping structure includes a center seat (202), which is installed above the bridge plate (100). A lever cylinder (213) is installed on the center seat (202). A connector (203) is installed on the telescopic end of the lever cylinder (213). Three lever pressure plates (204) are rotatably installed on the connector (203). A connecting rod (205) is rotatably installed on one side of each of the three lever pressure plates (204). A connecting seat (206) is rotatably installed on one end of each of the three connecting rods (205). The three connecting seats (206) are all installed on the lever cylinder (213). The locking structure includes two mounting seats (300). A lever cylinder two (301) is installed inside the mounting seat (300). A lever pressure plate two (302) is rotatably installed on the telescopic end of the lever cylinder two (301). A connecting rod two (303) is rotatably installed on the lever pressure plate two (302). One end of the connecting rod two (303) is rotatably installed on the lever cylinder two (301). A flange support cylinder one (305) is installed inside the mounting seat (300). A support cylinder top one (306) is installed on the flange support cylinder one (305).

2. The four-axis quick-positioning fixture for machining steering knuckles according to claim 1, characterized in that: The positioning structure also includes a CSY06 support cylinder seat (207) and a pin seat (211). Both the CSY06 support cylinder seat (207) and the pin seat (211) are installed above the bridge plate (100). A support cylinder (208) is installed on the CSY06 support cylinder seat (207). A flat-head muffler (209) and a CSY06 support head (210) are installed on the support cylinder (208). A diamond pin (212) is installed on the pin seat (211).

3. A four-axis quick-positioning fixture for machining steering knuckles according to claim 1, characterized in that: The locking structure also includes four corner cylinders (400), which are symmetrically arranged on the bridge plate (100). The telescopic ends of the four corner cylinders (400) are respectively equipped with two corner pressure plates (401) and two corner pressure plates (402). A support cylinder mounting plate (405) is installed below the bridge plate (100). Four flange support cylinders (403) are symmetrically installed on the support cylinder mounting plate (405). All four flange support cylinders (403) are installed inside the bridge plate (100), and each of the four flange support cylinders (403) is equipped with a support cylinder top (404).

4. A four-axis quick-positioning fixture for machining steering knuckles according to claim 3, characterized in that: The lever pressure plate 2 (302), the corner pressure plate 1 (401), and the corner pressure plate 2 (402) are all equipped with moving steel ball screws (304).

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