A self-adjustable high-load self-locking press-fit support mechanism

Abstract

The present invention relates to a self-adjustable high-load self-locking press-fitting support mechanism, comprising a product pressing tool and a locking mechanism, wherein the locking mechanism comprises an inclined guide block I, an inclined guide block III, a sliding column, a locking cylinder I, a locking cylinder II, a support column and a support frame, wherein the inclined guide block I, the inclined guide block III, the sliding column, the locking cylinder I, the locking cylinder II and the support column are respectively arranged on the support frame, the inclined guide block I is provided with an inclined surface I, the inclined guide block III is provided with an inclined surface III, the inclined guide block I is connected to the locking cylinder I, the inclined guide block III is connected to the locking cylinder II, the bottom surface and the side surface of the lower end of the support column are respectively provided with inclined surfaces corresponding to the inclined surface I and the inclined surface II, one end of the sliding column is fixedly provided with an inclined guide block II, the inclined guide block II is provided with an inclined surface II, the other end of the sliding column is provided with a pulley, the inclined surface II of the inclined guide block II on the sliding column contacts the inclined surface of the side surface of the support column, and the pulley on the sliding column contacts the inclined surface III of the inclined guide block III. The invention has strong adaptability to various products, automatically adjusts the contact height, and is self-locking and stable.

Description

Technical Field

[0001] The invention relates to a pressing mechanism, in particular to a self-adjustable high-load self-locking pressing support mechanism. Background Art

[0002] At present, the press-fit support structures are all fixed, threaded, inclined top block, and cylinder types; they either have insufficient bearing capacity, poor adaptability and adjustability, poor wear resistance, or poor self-locking stability.

[0003] 1. Bolt-type load-bearing, after repeated use of heavy loads, the threads are easily worn, resulting in large gaps, which affects the product's press-fitting accuracy and stability; the product's adaptability is poor, and the height needs to be manually adjusted each time a different product is installed.

[0004] 2. The inclined top block type load-bearing can bear heavy loads, has high repeated positioning accuracy and good self-locking properties, but its adjustability is poor. It is suitable for a single product and cannot meet the requirements of multiple varieties of press-fitting. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a self-adjustable high-load self-locking press-fitting support mechanism.

[0006] The technical solution to solve the above technical problems is: a self-adjustable high-load self-locking press-fitting support mechanism, including a product pressing tool and a locking mechanism, the product pressing tool is located above the locking mechanism, the locking mechanism includes an inclined guide block I, an inclined guide block III, a sliding column, a locking cylinder I, a locking cylinder II, a support column and a support frame, the inclined guide block I, the inclined guide block III, the sliding column, the locking cylinder I, the locking cylinder II, and the support column are respectively arranged on the support frame, the inclined guide block I is provided with an inclined surface I, the inclined guide block III is provided with an inclined surface III, the inclined guide block I is connected to the locking cylinder I, the inclined guide block III is connected to the locking cylinder II, the bottom surface and the side surface of the lower end of the support column are respectively provided with inclined surfaces corresponding to the inclined surface I and the inclined surface II, an inclined guide block II is fixedly provided at one end of the sliding column, the inclined guide block II is provided with an inclined surface II, a pulley is provided at the other end of the sliding column, the inclined surface II of the inclined guide block II on the sliding column contacts the inclined surface of the side surface of the support column, and the pulley on the sliding column contacts the inclined surface III of the inclined guide block III. Self-locking method: the product is placed on the product clamping fixture, the product axis contacts the upper end of the support column, the inclined guide block I, inclined guide block III, sliding column and support column are respectively arranged in the mounting holes on the support frame, and the inclined guide block I and the inclined guide block III are respectively pushed by the locking cylinder I and the locking cylinder II. When the inclined guide block I moves to the right, it can press the support column upward, so that the support column moves up and presses the axis of the product. When the inclined guide block III moves up, it pushes the sliding column to move left, and the support column is pressed by the sliding column, so that the support column can be self-locked on the support frame.

[0007] A further technical solution of the present invention is: the support column includes a support column I and a support column II, support column I is located below support column II, an insertion shaft is provided at the bottom of support column II, an axis hole is provided at the top of support column I for inserting the insertion shaft at the bottom of support column II, support column II and support column I are connected through the matching of the insertion shaft and the axis hole, and an inclined surface corresponding to inclined surface I and inclined surface II is arranged at the lower end of support column I.

[0008] The supporting column II includes a plurality of supporting columns II with different heights.

[0009] The locking mechanism also includes a connecting screw and a spring. A long hole is provided on the inclined guide block I, and a threaded groove is provided on the bottom inclined surface of the support column I. The threaded end of the connecting screw passes through the long holes on the spring and the inclined guide block I from bottom to top in sequence and is threadedly connected to the threaded groove.

[0010] Inclined surface I on the inclined guide block I, inclined surface III on the inclined guide block III and inclined surface II on the inclined guide block II are inclined surfaces with an inclination of 8° respectively.

[0011] The pulley is a bearing.

[0012] Due to the adoption of the above technical solution, the self-adjustable high-load self-locking press-fit support mechanism of the present invention has the following beneficial effects:

[0013] The present invention uses two cylinders to drive three inclined guide blocks to move, and then locks the support column through the wedge-shaped inclined surface on the inclined guide block, so that the axis of the product connected to the support column can also be in a locked state, so as to better press the product. The present invention can play a wide range of fine-tuning effects through the interaction of the inclined surfaces on the three inclined guide blocks, has strong adaptability, improves the utilization rate of equipment, can meet the needs of multiple varieties of the same equipment, and reduces the investment in special equipment. At the same time, the more common φ32 cylinder on the market is used, and the maintenance cost is low; it has high load-bearing, self-locking and stable characteristics, and can be arranged in a smaller space. The present invention adopts wear-resistant materials and three inclined guides, which can automatically compensate for the wear between the sliding pairs, increase the life of the mechanism, and reduce maintenance. This product can also restore the support column to its original position through a spring structure, effectively solving the problem of poor use due to the support column being stuck. The present invention is wear-resistant, high in strength, good in rigidity, high in repeated assembly accuracy, strong in adaptability to various products, automatically adjusts the contact height, and is self-locking and stable.

[0014] Next, the technical features of a self-adjustable high-load self-locking press-fit support mechanism of the present invention will be further described in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A structural diagram of a self-adjustable high-load self-locking press-fit support mechanism.

[0016] Figure 2: Schematic diagram of the cross-sectional structure of a self-adjustable high-load self-locking press-fit support mechanism arranged on a support guide column.

[0017] Figure 3 : Figure 2 An enlarged schematic diagram of the self-adjustable high-load self-locking press-fit support mechanism.

[0018] In the above drawings, the descriptions of the reference numerals are as follows:

[0019] 1-product clamping tooling, 2-locking mechanism, 3-oblique guide block Ⅰ, 4-oblique guide block Ⅲ, 5-sliding column, 6-locking cylinder Ⅰ, 7-locking cylinder Ⅱ, 8-support column Ⅰ, 9-support column Ⅱ, 10-oblique guide block Ⅱ, 11-bearing, 12-connecting screw, 13-spring, 14-support frame, 15-product, 16-clamping cylinder Ⅰ, 17-clamping cylinder Ⅱ, 18-clamping flange, 19-support guide column, 20-servo electric cylinder, 21-self-adjustable high-load self-locking press-fitting support mechanism. DETAILED DESCRIPTION

[0020] A self-adjustable high-load self-locking press-fitting support mechanism, the self-adjustable high-load self-locking press-fitting support mechanism 21 is arranged on the support guide column 19 and is located below the servo electric cylinder 20. The self-adjustable high-load self-locking press-fitting support mechanism includes a product pressing tool 1 and a locking mechanism 2, and the product pressing tool is located above the locking mechanism. The product pressing tool includes a pressing cylinder I 16, a pressing cylinder II 17 and a pressing flange 18. When in use, the product is pressed by the pressing cylinder I and the pressing cylinder II, and the pressing flange is used above the product for pressing. The locking mechanism includes an inclined guide block I3, an inclined guide block III4, a sliding column 5, a locking cylinder I6, a locking cylinder II7, a support column and a support frame 14, wherein the inclined guide block I, the inclined guide block III, the sliding column, the locking cylinder I, the locking cylinder II and the support column are respectively arranged on the support frame, the inclined guide block I is provided with an inclined surface I, the inclined guide block III is provided with an inclined surface III, the inclined guide block I is connected to the locking cylinder I, the inclined guide block III is connected to the locking cylinder II, the bottom surface and the side surface of the lower end of the support column are respectively provided with inclined surfaces corresponding to the inclined surface I and the inclined surface II, the inclined guide block I is arranged on the support frame in a horizontal manner, the inclined guide block I is located below the support column, the inclined surface I of the inclined guide block I contacts the inclined surface of the bottom surface of the support column, and the inclined guide block III is arranged in a vertical manner On the support frame, an inclined guide block II 10 is fixedly provided at one end of the slide column, an inclined surface II is provided on the inclined guide block II, and a pulley is provided at the other end of the slide column. The slide column is arranged on the support frame in a horizontal manner, and the inclined surface II of the inclined guide block II on the slide column contacts the inclined surface of the side of the support column, and the pulley on the slide column contacts the inclined surface III of the inclined guide block III. When in use, the product is placed on the product clamping fixture, and the axis of the product contacts the upper end of the support column. The inclined guide block I and the inclined guide block III are pushed respectively by the locking cylinder I and the locking cylinder II. When the inclined guide block I moves to the right, it can press the support column upward, so that the support column moves up and presses the axis of the product. When the inclined guide block III moves up, it pushes the slide column to move left, and the support column is pressed by the slide column, so that the support column can be locked. The support frame is provided with mounting holes for placing the inclined guide block I, inclined guide block III, sliding column and support column. The inclined guide block I, inclined guide block III, sliding column and support column are respectively arranged in the mounting holes and contact each other according to the structure in the figure. The inclined guide block I, inclined guide block III and sliding column can move along their respective mounting holes and position the support column and self-lock it in its mounting hole. The support frame is fixed to the support guide column through a support plate, and a self-adjustable high-load self-locking press-fit support mechanism is arranged on the support plate. The support column includes support column I 8 and support column II 9. Support column I is located below support column II. A plug-in shaft is arranged at the bottom of support column II. A shaft hole is arranged at the top of support column I for inserting the plug-in shaft at the bottom of support column II. Support column II and support column I are connected by the matching of the plug-in shaft and the shaft hole. The inclined surface corresponding to inclined surface I and inclined surface II is arranged at the lower end of support column I. Support column II is a plurality of support column IIs with different heights, which is convenient for use in products of different lengths.The support column II is arranged on the product pressing fixture through a sleeve, and the support column II is arranged in the sleeve, and the sleeve is arranged in the sleeve through hole of the product pressing fixture. The product is placed on the product pressing fixture, and the shaft of the product is inserted into the sleeve and contacts the upper end of the support column II in the sleeve, and the lower end of the support column II is connected to the support column I. The locking mechanism also includes a connecting screw 12 and a spring 13, a long hole is arranged on the inclined guide block I, and a thread groove is arranged on the inclined surface at the bottom of the support column I. The threaded end of the connecting screw passes through the long holes on the spring and the inclined guide block I from bottom to top in sequence and is threadedly connected to the thread groove. When not in use, the spring is in a natural state, and the two ends of the spring are in contact with the lower end of the connecting screw and the bottom of the support frame respectively. When in use, the locking cylinder I pushes the inclined guide block I to move rightward for locking. At this time, the support column I is pushed upward by the inclined guide block I, and the upward movement of the support column I drives the connecting screw to move upward. At this time, the spring is in a compressed state. When the locking cylinder I drives the inclined guide block I to move leftward and reset, the spring recovers and pulls the support column I downward, which can effectively prevent the support column I from being stuck in the support column hole on the support frame, making it convenient for repeated use. The inclined surface I on the inclined guide block I, the inclined surface III on the inclined guide block III, and the inclined surface II on the inclined guide block II are inclined surfaces with an inclination of 8° respectively. The pulley is a bearing 11, which is wear-resistant.

[0021] This implementation is designed as a structure of three inclined guides (three inclined guide blocks cooperate with each other) and springs. Inclined guide block I is driven horizontally by a φ32 cylinder. Inclined guide block I adopts an 8° inclined surface to ensure that the upward ejection force is less than the product clamping force. The adjustable distance reaches 10mm (covering all product types); inclined guide block III is driven longitudinally by a φ32 cylinder. Inclined guide block III also adopts an 8° inclined surface. After the ejection contact is in place, inclined guide block III drives the sliding column through the radial bearing; inclined guide block II on the sliding column also adopts an 8° inclined surface, and the force interacts with the support column to form a self-locking with inclined guide block I. When the product is repeatedly clamped, the support column is compressed to a suitable size after being subjected to the clamping force of the two clamping cylinders and the reaction force of the spring. Its size range is much larger than the assembly tolerance of the drawing, and it has strong adaptability. The support column I with a diameter of φ40 can reach a high load of more than 20T and has good self-locking performance. It is made of wear-resistant materials, and its repeated press-fitting accuracy after heat treatment is within 0.02mm. It has strong adaptability and the automatic adjustment distance is up to 10mm, which can meet the switching and assembly errors of various products. The purpose of self-adjustable high-load self-locking press-fit support has been achieved.

[0022] During press-fitting, the product reference surface is pressed against the product pressing fixture reference plate, the bearing (impeller end) is placed in the sleeve hole of support column II, and then the φ40 double cylinder is used to press the product symmetrically on the left and right; the locking cylinder I is started to push the inclined guide block I to drive the support column I until the support column II is pressed to the impeller end of the bearing (the double cylinder pressure of the pressed product is required to be greater than the support force of the impeller end of the bearing to ensure that the product design reference coincides with the fixture reference), and then the longitudinal locking cylinder II is started to push the inclined guide block III to drive the horizontal sliding column, which acts on the support column I for interlocking; then after the product is pressed with a large-tonnage servo electric cylinder, the locking cylinder II is first released, and then the locking cylinder I is released. Due to the compression force of the bottom end spring, the support column I is pulled back to its original position. The press-fit switching of different products can be met by replacing different support columns II and pressing fixtures.

Claims

1. A self-adjustable high-load self-locking press-fitting support mechanism, comprising a product pressing tool and a locking mechanism, wherein the product pressing tool is located above the locking mechanism, and is characterized in that: The locking mechanism includes an inclined guide block I, an inclined guide block III, a sliding column, a locking cylinder I, a locking cylinder II, a support column and a support frame, wherein the inclined guide block I, the inclined guide block III, the sliding column, the locking cylinder I, the locking cylinder II and the support column are respectively arranged on the support frame, the inclined guide block I is provided with an inclined surface I, the inclined guide block III is provided with an inclined surface III, the inclined guide block I is connected to the locking cylinder I, the inclined guide block III is connected to the locking cylinder II, the bottom surface and the side surface of the lower end of the support column are respectively provided with inclined surfaces corresponding to the inclined surface I and the inclined surface II, an inclined guide block II is fixedly provided at one end of the sliding column, the inclined guide block II is provided with an inclined surface II, a pulley is provided at the other end of the sliding column, the inclined surface II of the inclined guide block II on the sliding column contacts the inclined surface on the side surface of the support column, and the inclined surface II on the sliding column The pulley contacts with the inclined surface III of the inclined guide block III; the inclined surface I on the inclined guide block I, the inclined surface III on the inclined guide block III and the inclined surface II on the inclined guide block II are respectively inclined surfaces with an inclination of 8°; self-locking method: the product is placed on the product clamping fixture, the axis of the product contacts with the upper end of the support column, the inclined guide block I, the inclined guide block III, the sliding column and the support column are respectively arranged in the mounting holes on the support frame, and the inclined guide block I and the inclined guide block III are respectively pushed by the locking cylinder I and the locking cylinder II. When the inclined guide block I moves to the right, it can push up against the support column, so that the support column moves up and presses against the axis of the product. When the inclined guide block III moves up, it pushes the sliding column to the left, and the support column is supported by the sliding column, so that the support column can be self-locked on the support frame.

2. A self-adjustable high-load self-locking press-fit support mechanism according to claim 1, characterized in that: The support column includes a support column I and a support column II. The support column I is located below the support column II. An insertion shaft is provided at the bottom of the support column II. An axial hole is provided at the top of the support column I for inserting the insertion shaft at the bottom of the support column II. The support column II and the support column I are connected through the matching of the insertion shaft and the axial hole. An inclined surface corresponding to the inclined surface I and the inclined surface II is arranged at the lower end of the support column I.

3. The self-adjustable high-load self-locking press-fit support mechanism according to claim 2, characterized in that: The supporting column II includes a plurality of supporting columns II with different heights.

4. The self-adjustable high-load self-locking press-fit support mechanism according to claim 2, characterized in that: The locking mechanism also includes a connecting screw and a spring. A long hole is provided on the inclined guide block I, and a threaded groove is provided on the bottom inclined surface of the support column I. The threaded end of the connecting screw passes through the long holes on the spring and the inclined guide block I from bottom to top in sequence and is threadedly connected to the threaded groove.

5. The self-adjustable high-load self-locking press-fit support mechanism according to claim 1, characterized in that: The pulley is a bearing.

Images