An H-type split subframe alignment and inspection fixture

Abstract

An H-type split subframe shape correction and detection fixture, which includes a workbench, a left shape correction component, a right shape correction component and a detection device. The left shape correction component includes a first oil cylinder, a second oil cylinder, a left limit block and a first pressure block arranged on the workbench. The first oil cylinder is provided with a bushing puller for horizontal correction of the upper bushing. The workbench is provided with a hole. The second oil cylinder is provided with a bushing pull rod and passes through the hole on the workbench. The bushing pull rod is provided with a pin shaft hole to achieve vertical correction of the upper bushing through the movement of the second oil cylinder after the pin is inserted in the use state. The left limit block is provided with a groove for placing the lower bushing. The first pressure block is provided with a detachable pressure head for clamping and limiting the lower bushing. The shape correction and detection fixture of the present invention ensures that the blank after shape correction is qualified and meets the margin required for processing, which can greatly improve the product qualification rate and machining efficiency, and greatly reduce the product production and manufacturing cost.

Description

Technical Field

[0001] The invention relates to the field of automobile parts processing, and in particular to an H-shaped split auxiliary frame shape correction and detection fixture. Background Art

[0002] There are many types of chassis products such as integral / split subframes, control arms, center beams, etc., but during the processing of the products, there are often problems such as uneven holes, milling damage, and lack of light during processing, or the products cannot be clamped and positioned at all. In the final analysis, it is caused by the deformation of the product. Deformation is the biggest technical difficulty in the industry. Only by solving the deformation problem can the qualified rate of products be greatly improved, the processing process can be kept smooth, and costs can be saved.

[0003] Existing technical solution: auxiliary positioning holes are added to the product shape for positioning, and then the body bushing hole is pressed and corrected through a screw tensioning mechanism, and four "H"-shaped points need to be corrected.

[0004] Then, auxiliary blank positioning holes are used for positioning, without considering that the parts cannot be clamped at all after being deformed too much. The tightening force of the bolts is very small, which is not enough to cause plastic deformation of chassis parts. Only elastic deformation will occur, and they will rebound after being loosened. They cannot be used for profiling. In addition, the entire profiling process is time-consuming and labor-intensive. It takes a long time to calibrate a product, and most of them do not have detection functions, so they cannot judge whether the products after profiling are qualified. Summary of the invention

[0005] The purpose of the present invention is to provide an H-shaped split subframe shape correction and detection fixture to solve the above-mentioned shortcomings.

[0006] The present invention provides the following technical solution: an H-shaped split subframe shaping and detection fixture, which comprises a workbench, a left shaping component, a right shaping component and a detection device,

[0007] The left correction component includes a first oil cylinder, a second oil cylinder, a left limit block and a first pressure block arranged on the workbench.

[0008] The first oil cylinder is provided with a bushing puller for leveling the upper bushing.

[0009] A hole is opened on the workbench, and a bushing pull rod is arranged on the second oil cylinder and passes through the hole on the workbench. A pin hole is opened on the bushing pull rod to realize vertical correction of the upper bushing through the movement of the second oil cylinder after the pin is inserted in the use state.

[0010] The left limit block is provided with a groove for placing the lower bushing.

[0011] The first pressing block is provided with a detachable pressing head for pressing and limiting the lower bushing.

[0012] The right correction component includes a third oil cylinder, a second pressing block, a third pressing block, a limit seat and a contour head mounting seat arranged on the workbench.

[0013] The third oil cylinder is provided with a pipe opening puller for placing the upper pipe opening, and the movement of the third oil cylinder drives the upper pipe opening to be corrected in the horizontal direction.

[0014] The second pressing block is provided with a detachable limiting head for pressing and limiting the upper pipe opening.

[0015] The third pressing block is provided with a placement seat for placing the lower pipe opening, and the third pressing block is provided with a detachable pressing head for pressing and limiting the lower pipe opening.

[0016] A limit threaded hole is provided on the limit seat, and a limit bolt is provided in the limit threaded hole.

[0017] A profiling block for limiting the edge of the lower pipe opening is detachably mounted on the profiling head mounting seat.

[0018] The detection device includes an upper pipe mouth detection seat and an ear piece detection seat arranged on a workbench.

[0019] A hole is provided on the upper pipe mouth detection seat, and the detection pin passes through the hole on the upper pipe mouth detection seat to detect the correction position of the upper pipe mouth.

[0020] A pair of grooves corresponding to the ears are arranged on the ear detection block, and one end of the ear detection block is mounted on the ear detection seat through a pin shaft.

[0021] Furthermore, a lower bushing placement area is formed between the left limit block, the first pressing block and the pressing head on the first pressing block.

[0022] Furthermore, the upper bushing detection seat is arranged on the workbench, and an L-shaped rod is fixedly arranged on the upper bushing detection seat, and a step limit detection groove is arranged at the end of the L-shaped rod to realize the detection in the vertical direction whether the upper bushing is in one of the qualified grooves of the step limit detection groove.

[0023] Further, a sizing steel ruler is placed on the upper bushing and the lower bushing for detecting the center distance between the upper bushing and the lower bushing holes.

[0024] Furthermore, a platform for placing an upper bushing is provided on the power output shaft of the second oil cylinder.

[0025] Furthermore, the profiling block is provided with an arc surface for fitting the edge of the component and a groove for avoiding the protrusion on the component.

[0026] Further, the fixation and detection methods are as follows:

[0027] A. Place the upper bushing of the H-type split subframe into the bushing tie rod on the second oil cylinder and insert the latch;

[0028] B. Place the lower bushing of the H-type split subframe in the groove on the left limit block, and press and limit it with the pressing head on the first pressing block;

[0029] C. Place the upper pipe opening of the H-type split subframe on the pipe opening puller on the third oil cylinder, and tighten and limit the upper pipe opening through the detachable limiter on the second pressure block.

[0030] D. Place the lower pipe opening of the H-type split subframe on the placement seat on the third pressing block, and use the pressure head provided on the third pressing block to press and limit the lower pipe opening. At this time, the limit bolt and the contour head on the limit seat both press and limit the lower pipe opening.

[0031] E. After the fixation is completed, the H-type split subframe is calibrated. After the calibration is completed, the inspection steps are started:

[0032] E. The detection pin passes through the hole on the upper pipe mouth detection seat, and the end position of the detection pin is observed. When the end of the detection pin is at the limit position and contacts with the upper pipe mouth, it is qualified;

[0033] E2. Turn the ear detection block to make it stuck on the ear of the H-type split subframe. If the ear detection block can enter the ear of the H-type split subframe, it is qualified.

[0034] E3. Place a sized steel ruler on the upper bushing and the lower bushing to detect the center distance between the upper bushing and the lower bushing holes;

[0035] E4. Through the step limit detection groove set at the end of the L-shaped rod, check whether the upper bushing is in one of the qualified grooves of the step limit detection groove in the vertical direction.

[0036] The beneficial effects of the present invention are: 1. The present invention designs a set of special shape correction and detection fixtures for H-type split subframes to ensure that the blanks are qualified after shape correction and meet the margin required for processing, which can greatly improve the product qualification rate and machining efficiency and greatly reduce the product production cost.

[0037] 2. The present invention designs a special H-type split subframe correction and detection integrated fixture, which uses welding bushings and body bushing holes for positioning, and uses hydraulic cylinders to correct deformed parts. The corrected products are tested by various detection pins 311 and detection rulers to detect whether the products are corrected, and the processing allowances of the processed parts are detected to ensure the effectiveness of the correction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the component placement status structure;

[0040] Figure 3 It is a structural schematic diagram of the state of taking out the parts;

[0041] Figure 4 It is a schematic diagram of the structure of the left school shape component;

[0042] Figure 5 It is a schematic diagram of the L-shaped rod structure;

[0043] Figure 6 It is a schematic diagram of the structure of the right school shape component;

[0044] Figure 7 It is a schematic diagram of the profiling head structure;

[0045] Figure 8 This is a schematic diagram of the structure of the fixed-size steel ruler in the placement state; DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0049] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present invention and simplifying the description, and does 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. In addition, if the terms "first", "second", etc. appear in the description of the present invention, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" 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 indirectly connected 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.

[0051] Please refer to the figure, the present invention is an H-type split subframe shaping and testing fixture, which includes a workbench 1, a left shaping component, a right shaping component and a testing device,

[0052] The left correction assembly includes a first oil cylinder 2, a second oil cylinder 3, a left limit block 4 and a first pressing block 5 arranged on a workbench 1.

[0053] The first oil cylinder 2 is provided with a bushing puller 201 for leveling the upper bushing.

[0054] A hole is opened on the workbench 1, and a bushing rod 301 is provided on the second oil cylinder 3 and passes through the hole on the workbench 1. A pin hole is opened on the bushing rod 301 to realize vertical correction of the upper bushing through the movement of the second oil cylinder 3 after the pin 302 is inserted in the use state.

[0055] The left limit block 4 is provided with a groove for placing the lower bushing.

[0056] The first pressing block 5 is provided with a detachable pressing head for pressing and limiting the lower bushing.

[0057] The right shaping assembly includes a third oil cylinder 11, a second pressing block 12, a third pressing block 13, a limit seat 14 and a profiling head mounting seat 15 arranged on the workbench 1.

[0058] The third oil cylinder 11 is provided with a pipe opening puller 111 for placing the upper pipe opening, and the movement of the third oil cylinder 11 drives the upper pipe opening to be corrected in the horizontal direction.

[0059] The second pressing block 12 is provided with a detachable limiting head for pressing and limiting the upper pipe opening.

[0060] The third pressing block 13 has a placement seat for placing the lower pipe opening, and a detachable pressing head is provided on the third pressing block 13 to press and limit the lower pipe opening.

[0061] The limiting seat 14 is provided with a limiting threaded hole, in which a limiting bolt is provided.

[0062] A profiling block 151 for limiting the edge of the lower pipe opening is detachably mounted on the profiling head mounting seat 15.

[0063] The detection device includes an upper pipe mouth detection seat 31 and an ear piece detection seat 32 arranged on the workbench 1.

[0064] The upper pipe mouth detection seat 31 is provided with a hole, and the detection pin 311 passes through the hole on the upper pipe mouth detection seat 31 to detect the correction position of the upper pipe mouth.

[0065] A pair of grooves corresponding to the ears are provided on the ear detection block 322 , and one end of the ear detection block 322 is mounted on the ear detection seat 32 via a pin.

[0066] Furthermore, a lower bushing placement area is formed between the left limit block 4 and the first pressing block 5 as well as the pressing head on the first pressing block 5 .

[0067] Furthermore, an upper bushing detection seat 33 is arranged on the workbench 1, and an L-shaped rod 331 is fixedly arranged on the upper bushing detection seat 33, and a step limit detection groove is arranged at the end of the L-shaped rod 331 to detect whether the upper bushing is in one of the qualified grooves of the step limit detection groove in the vertical direction.

[0068] Further, a sizing steel ruler 34 is placed on the upper bushing and the lower bushing for detecting the center distance between the upper bushing and the lower bushing holes.

[0069] Furthermore, a platform for placing an upper bushing is provided on the power output shaft of the second oil cylinder 3 .

[0070] Furthermore, the contour block 151 is provided with an arc surface for fitting the edge of the component and a groove for avoiding the protrusion on the component.

[0071] Further, the fixation and detection methods are as follows:

[0072] A. Place the upper bushing of the H-type split subframe into the bushing tie rod 301 on the second oil cylinder 3 and insert the latch 302;

[0073] B. Place the lower bushing of the H-type split subframe in the groove on the left limit block 4, and press and limit it with the pressure head on the first pressure block 5;

[0074] C. Place the upper pipe opening of the H-type split subframe on the pipe opening pull head 111 on the third oil cylinder 11, and use the detachable limit head on the second pressing block 12 to press and limit the upper pipe opening.

[0075] D. Place the lower pipe opening of the H-type split subframe on the placement seat on the third pressing block 13, and use the pressure head provided on the third pressing block 13 to press and limit the lower pipe opening. At this time, the limiting bolt and the contouring head on the limiting seat 14 are used to press and limit the lower pipe opening;

[0076] E. After the fixation is completed, the H-type split subframe is calibrated. After the calibration is completed, the inspection steps are started:

[0077] E1. The detection pin 311 passes through the hole on the upper pipe mouth detection seat 31, and the end position of the detection pin 311 is observed. When the end of the detection pin 311 is at the limit position and contacts with the upper pipe mouth, it is qualified;

[0078] E2. Rotate the ear detection block 322 to make it stuck on the ear of the H-type split subframe. If the ear detection block 322 can enter the ear of the H-type split subframe, it is qualified.

[0079] E3, placing a sizing steel ruler 34 on the upper bushing and the lower bushing to detect the center distance between the upper bushing and the lower bushing holes;

[0080] E4. Through the step limit detection groove provided at the end of the L-shaped rod 331, detect whether the upper bushing is in one of the qualified grooves of the step limit detection groove in the vertical direction.

Claims

1. An H-type split subframe shape correction and inspection fixture, characterized in that It comprises a workbench (1), a left correction component, a right correction component and a detection device. The left correction component comprises a first oil cylinder (2), a second oil cylinder (3), a left limit block (4) and a first pressing block (5) which are arranged on a workbench (1). The first oil cylinder (2) is provided with a bushing puller (201) for horizontally correcting the upper bushing. A hole is formed on the workbench (1), and a bushing pull rod (301) is provided on the second oil cylinder (3) and passes through the hole on the workbench (1). A pin hole is formed on the bushing pull rod (301) so that the upper bushing can be corrected in the vertical direction by the movement of the second oil cylinder (3) after the pin (302) is inserted in the use state. The left limit block (4) is provided with a groove for accommodating the lower bushing. The first pressing block (5) is provided with a detachable pressing head for pressing and limiting the lower bushing. The right shaping assembly comprises a third oil cylinder (11), a second pressing block (12), a third pressing block (13), a limiting seat (14) and a profiling head mounting seat (15) arranged on a workbench (1). The third oil cylinder (11) is provided with a pipe opening pull head (111) for placing the upper pipe opening, and the movement of the third oil cylinder (11) drives the upper pipe opening to be corrected in the horizontal direction. The second pressing block (12) is provided with a detachable limiting head for pressing and limiting the upper pipe opening. The third pressing block (13) is provided with a placement seat for placing the lower pipe opening, and the third pressing block (13) is provided with a detachable pressing head for pressing and limiting the lower pipe opening. A limiting threaded hole is provided on the limiting seat (14), and a limiting bolt is provided in the limiting threaded hole. A profiling block (151) for limiting the edge of the lower pipe opening is detachably mounted on the profiling head mounting seat (15). The detection device comprises an upper pipe mouth detection seat (31) and an ear piece detection seat (32) arranged on a workbench (1). The upper pipe mouth detection seat (31) is provided with a hole, and the detection pin (311) passes through the hole on the upper pipe mouth detection seat (31) to detect the correction position of the upper pipe mouth. A pair of grooves corresponding to the ears are arranged on the ear detection block (322), and one end of the ear detection block (322) is mounted on the ear detection seat (32) via a pin.

2. The H-type split subframe alignment and inspection fixture according to claim 1 is characterized in that A lower bushing placement area is formed between the left limit block (4), the first pressing block (5) and the pressing head on the first pressing block (5).

3. The H-type split subframe alignment and inspection fixture according to claim 1 is characterized in that An upper bushing detection seat (33) is arranged on a workbench (1); an L-shaped rod (331) is fixedly arranged on the upper bushing detection seat (33); a stepped limit detection groove is arranged at the end of the L-shaped rod (331) so as to detect whether the upper bushing is in one of the qualified grooves of the stepped limit detection grooves in a vertical direction.

4. The H-type split subframe alignment and inspection fixture according to claim 1 is characterized in that A sizing steel ruler (34) is placed on the upper bushing and the lower bushing to detect the center distance between the upper bushing and the lower bushing holes.

5. The H-type split subframe alignment and inspection fixture according to claim 1 is characterized in that A platform for placing an upper bushing is arranged on the power output shaft of the second oil cylinder (3).

6. The H-type split subframe alignment and inspection fixture according to claim 1 is characterized in that The profiling block (151) is provided with an arc surface for fitting the edge of the component and a groove for avoiding the protrusion on the component.

7. The H-type split subframe alignment and detection fixture according to claim 1 is characterized in that: The fixation and detection methods are as follows: A. Place the upper bushing of the H-type split subframe in the bushing pull rod (301) on the second oil cylinder (3), and insert the latch (302); B. Place the lower bushing of the H-type split subframe in the groove on the left limit block (4), and press and limit it with the pressure head on the first pressure block (5); C. Place the upper pipe opening of the H-type split sub-frame on the pipe opening pull head (111) on the third oil cylinder (11), and use the detachable limit head on the second pressing block (12) to press and limit the upper pipe opening. D. Place the lower pipe opening of the H-shaped split subframe on the placement seat on the third pressing block (13), and use the pressure head provided on the third pressing block (13) to press and limit the lower pipe opening. At this time, the limiting bolt and the contour head on the limiting seat (14) both press and limit the lower pipe opening. E. After the fixation is completed, the H-type split subframe is calibrated. After the calibration is completed, the inspection steps are started: E1. The detection pin (311) passes through the hole on the upper pipe mouth detection seat (31), and the end position of the detection pin (311) is observed. When the end of the detection pin (311) is at the limit position and contacts with the upper pipe mouth, it is qualified; E2. Rotate the ear piece detection block (322) to make it stuck on the ear piece of the H-type split subframe. If the ear piece detection block (322) can enter the ear piece of the H-type split subframe, it is qualified. E3, placing a sizing steel ruler (34) on the upper bushing and the lower bushing to detect the center distance between the holes of the upper bushing and the lower bushing; E4. Through the step limit detection groove provided at the end of the L-shaped rod (331), it is detected whether the upper bushing is in one of the qualified grooves of the step limit detection groove in the vertical direction.

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