Positioning mechanism for machining height error

Abstract

The utility model belongs to the technical field of automobile part machining equipment, and provides a positioning mechanism for machining height errors, which comprises a fixed seat, a main positioning pin seat, a main positioning pin and a sleeve positioning piece, the main positioning pin is mounted in the main positioning pin seat, the sleeve positioning piece is mounted on the main positioning pin, and the sleeve positioning piece is mounted on the main positioning pin seat. A positioning spring is installed between the main positioning pin and the sleeve positioning piece, a detection pin is arranged on the sleeve positioning piece, and a detection spring is installed on the detection pin. The utility model has the advantages that the elastic mechanism is additionally arranged to absorb or compensate the processing error of the previous procedure, the cylindrical bolt is combined to realize the controllable positioning extension and the controllable sleeve positioning thickness tolerance through the unequal lengths of the waist grooves among the sleeve positioning surface, the main positioning pin and the main positioning pin seat, the structure is simple, the positioning is accurate, and the processing efficiency is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing equipment, and particularly relates to a positioning mechanism for machining height error. Background Technique

[0002] In the sleeve assembly process, due to the large variation in the thickness dimension of the sleeve in the previous sawing process, after the general sleeves are welded together, the product dimensions will exceed the requirements of the assembly drawing, with relatively large errors. And during production, due to the failure to accurately identify the placement situation of the sleeves, the welding is scrapped when the sleeves are not placed, which seriously affects the work efficiency. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a positioning mechanism for machining height error with a simple structure, accurate positioning and guaranteed machining efficiency in view of the current situation of the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows: This patent provides a positioning mechanism for machining height error, which is characterized in that it includes a fixed seat, a main positioning pin seat, a main positioning pin and a sleeve positioning member. The main positioning pin is installed in the main positioning pin seat, the sleeve positioning member is installed on the main positioning pin, a positioning spring is installed between the main positioning pin and the sleeve positioning member, a detection pin is provided on the sleeve positioning member, and a detection spring is installed on the detection pin.

[0005] In the above-mentioned positioning mechanism for machining height error, the sleeve positioning member has a sleeve positioning surface, an open pin is provided at the lower part of the sleeve positioning member, an adjustment waist slot is provided on the main positioning pin, a cylindrical pin is provided on the main positioning pin, and the cylindrical pin passes through the open pin and the main positioning pin seat and is locked and matched with the adjustment waist slot.

[0006] In the above-mentioned positioning mechanism for machining height error, an oil-free bushing is further provided between the fixed seat and the main positioning pin seat.

[0007] In the above-mentioned positioning mechanism for machining height error, a detection bracket is further provided on the main positioning pin seat, and a detection switch is installed on the detection bracket.

[0008] In the above-mentioned positioning mechanism for machining height error, the positioning mechanism further includes a pressing component, and the pressing component includes a clamping cylinder, a pressing head, a limiting convex block and a limiting concave block. The clamping cylinder is connected to the pressing head and drives it to move, and the limiting convex block and the limiting concave block are cooperatively connected and press the crossbeam product.

[0009] Compared with the prior art, the utility model has the advantages that an elastic mechanism is added to absorb or compensate for the machining errors in the previous process. By virtue of the unequal lengths of the waist grooves between the sleeve positioning surface, the main positioning pin and the main positioning pin seat, and in combination with the cylindrical pin, the positioning expansion and contraction can be controlled, the tolerance of the sleeve positioning thickness can be controlled, the structure is simple, the positioning is accurate, and the machining efficiency is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the overall structure of the positioning mechanism for the machining height error;

[0011] Figure 2 is a schematic diagram of the structure of the crossbeam product, the sleeve product and the operation of the present positioning mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following are specific embodiments of the utility model in combination with the drawings to further describe the technical solutions of the utility model, but the utility model is not limited to these embodiments.

[0013] In the figures, sleeve product 100; crossbeam product 200; fixed seat 300; main positioning pin seat 400; main positioning pin 500; sleeve positioning member 600; split pin 601; positioning spring 700; detection pin 800; detection spring 900; detection bracket 1000; detection switch 1001; sleeve positioning surface 1003; adjustment waist groove 1004; cylindrical pin 1005; oil-free bushing 1006; clamping cylinder 1007; pressing head 1008; limit convex block 1009; limit concave block 1010.

[0014] As Figure 1 and Figure 2 shown, the positioning mechanism for the machining height error is used for the installation of the sleeve product 100 and the crossbeam product 200, and includes a fixed seat 300, a main positioning pin seat 400, a main positioning pin 500 and a sleeve positioning member 600. The main positioning pin 500 is installed in the main positioning pin seat 400, the sleeve positioning member 600 is installed on the main positioning pin 500, a positioning spring 700 is installed between the main positioning pin 500 and the sleeve positioning member 600, a detection pin 800 is provided on the sleeve positioning member 600, and a detection spring 900 is installed on the detection pin 800. Here, the sleeve product 100 is placed on the sleeve positioning member 600. By adding an elastic detection pin 800 to the sleeve positioning member 600, the pin rod of the detection pin 800 extends downward under pressure, and the detection switch 1001 determines the sleeve product 100 when it recognizes the pin rod; during production, the placement situation of the sleeve can be accurately recognized to avoid welding scrap caused by the non-placement of the sleeve product 100. In addition, a detection bracket 1000 is further provided on the main positioning pin seat 400, and a detection switch 1001 is installed on the detection bracket 1000, which can be used to detect whether the crossbeam product 200 is placed in place.

[0015] As a further optimization, the sleeve positioning member 600 has a sleeve positioning surface 1003. An opening pin 601 is provided at the lower part of the sleeve positioning member 600. An adjusting waist slot 1004 is provided on the main positioning pin 500. A cylindrical pin 1005 is arranged on the main positioning pin 500. The cylindrical pin 1005 passes through the opening pin 601 and the main positioning pin seat 400 and is in locking cooperation with the adjusting waist slot 1004. An oil-free bushing 1006 is also arranged between the fixed seat 300 and the main positioning pin seat 400. Here, in this patent, due to the unequal lengths of the adjusting waist slots 1004 between the sleeve positioning surface 1003, the main positioning pin 500 and the main positioning pin seat 400, and combined with the cylindrical pin 1005, the positioning expansion and contraction can be controlled, and the tolerance of the sleeve positioning thickness can be controlled. In addition, the positioning mechanism further includes a material pressing assembly. The material pressing assembly includes a clamping cylinder 1007, a pressing head 1008, a limiting convex block 1009 and a limiting concave block 1010. The clamping cylinder 1007 is connected to the pressing head 1008 and drives its movement. The limiting convex block 1009 and the limiting concave block 1010 are connected in cooperation and press the crossbeam product 200. Here, the product is pressed by the limiting convex block 1009 and the limiting concave block 1010, and the crossbeam product 200 is firmly pressed by the pressing head 1008, so as to realize the product installation. The structure is simple, the positioning is accurate, and the processing efficiency is guaranteed.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications to the described specific embodiments or use similar methods for substitution, but will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A positioning mechanism for machining height error, characterized in that It includes a fixed seat, a main positioning pin seat, a main positioning pin and a sleeve positioning member. The main positioning pin is installed in the main positioning pin seat, the sleeve positioning member is installed on the main positioning pin, a positioning spring is installed between the main positioning pin and the sleeve positioning member, a detection pin is provided on the sleeve positioning member, and a detection spring is installed on the detection pin.

2. The positioning mechanism for machining height error according to claim 1, characterized in that The sleeve positioning member has a sleeve positioning surface, a split pin is provided at the lower part of the sleeve positioning member, an adjustment waist groove is provided on the main positioning pin, a cylindrical pin is provided on the main positioning pin, and the cylindrical pin passes through the split pin and the main positioning pin seat and is in locking cooperation with the adjustment waist groove.

3. The positioning mechanism for machining height error according to claim 2, wherein An oil-free bushing is further provided between the fixed seat and the main positioning pin seat.

4. The positioning mechanism for machining height error according to claim 3, characterized in that The main positioning pin seat is further provided with a detection bracket, and a detection switch is installed on the detection bracket.

5. A positioning mechanism for machining height error according to claim 4, characterized in that, The positioning mechanism further includes a blank holding assembly. The blank holding assembly includes a clamping cylinder, a pressure head, a limit convex block and a limit concave block. The clamping cylinder is connected to the pressure head and drives its movement. The limit convex block and the limit concave block are cooperatively connected and press the cross beam product.

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