Floating type rivet pressing equipment

Abstract

The utility model relates to floating type rivet pressing equipment, which is applied to the technical field of automatic rivet pressing and comprises a base and a pressure system, and a rivet pressing tool is arranged on the base. A processing station is arranged on the base; the press riveting tool comprises a press riveting shaft, a tool positioning sleeve, an elastic piece and a limiting block, the top end of the press riveting shaft is arranged in the tool positioning sleeve in a penetrating mode, the limiting block is arranged at the top of the tool positioning sleeve, and the elastic piece is arranged between the press riveting shaft and the limiting block; the pressure system is used for applying pressure to the limiting block from top to bottom; due to the fact that the elastic piece is arranged between the pressing rivet shaft and the limiting block, after the pressing rivet tool is pressed by a pressure system, floating force generated by the internal elastic piece acts on a piece to be pressed and riveted, the pressure curve is smooth, and the situation that pressure directly acts on a product, and consequently the product is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic press riveting technical field especially is involved in a kind of floating press riveting equipment. BACKGROUND

[0002] In manufacturing industry, the reliability and stability of connecting piece are crucial to the quality and performance of product. And press riveting, as a common connection process, is widely used in traditional machinery, automobile, 3C and other automation industries. Press riveting is a process of connecting two or more workpieces together by pressure. It makes the material between workpieces plastically deform by applying pressure at the connection site, so as to form a firm connection. Therefore, the quality of pressure tool directly affects the quality of press riveting, and becomes a decisive factor of press riveting process.

[0003] The press riveting process in the prior art is as follows: the connecting piece is placed at the connection site of the workpiece and its position is ensured to be accurate, and then a pressure system is used to apply sufficient pressure to the press riveting tool, so that the material between the connecting piece and the workpiece plastically deforms. This process is completed by fixed press riveting tool, which has the advantages of stability and reliability, and is not easy to wear. However, since the pressure of the press riveting equipment directly acts on the product through the press riveting tool, the pressure curve is not smooth, which can easily cause damage to the product.

[0004] Therefore, there is an urgent need for a floating press riveting equipment to solve the above problems. SUMMARY

[0005] In order to help solve the problems existing in the prior art, the utility model provides a floating press riveting equipment, which adopts the following technical scheme: it comprises a base and a pressure system, and a press riveting tool is arranged on the base;

[0006] A processing station is arranged on the base.

[0007] The press riveting tool comprises a press riveting shaft, a tool positioning sleeve, an elastic member and a limiting block, the top end of the press riveting shaft is arranged in the tool positioning sleeve, the limiting block is arranged at the top of the tool positioning sleeve, and the elastic member is arranged between the press riveting shaft and the limiting block.

[0008] The pressure system is used to apply pressure to the limiting block from top to bottom.

[0009] Further features are as follows:

[0010] A bushing is arranged in the tool positioning sleeve, and the press riveting shaft is arranged in the bushing.

[0011] A plurality of tight screws are arranged on the ring side of the tool positioning sleeve, the plurality of tight screws are all threadedly connected with the tool positioning sleeve, and extend to the annular surface of the bushing.

[0012] The bottom end of the press riveting shaft is coaxially provided with a positioning pin, the positioning pin is matched with a positioning hole on the workpiece, and the connection position of the positioning pin and the press riveting shaft forms a press riveting step facing downward.

[0013] The top end of the press riveting shaft is provided with a limiting disc, the tool positioning sleeve is internally provided with a limiting surface facing upward, and the limiting disc is arranged above the limiting surface.

[0014] The elastic member is arranged between the limiting disc and the limiting block.

[0015] The elastic member is a spring.

[0016] The limiting block is in threaded connection with the tool positioning sleeve.

[0017] The base is provided with a positioning groove.

[0018] The pressure system comprises an adjusting frame and a cylinder, the adjusting frame is arranged on one side of the base, the cylinder is mounted on the adjusting frame, the cylinder is suspended above the base, and the output end of the cylinder faces downward.

[0019] The above structure of the utility model can achieve the following beneficial effects:

[0020] During processing, before press riveting, the workpiece to be press riveted is placed in the corresponding position of the press riveting product by manual operation; then the press riveting tool is placed in the corresponding positioning hole of the product by manual operation, and the whole is placed on the base; the press riveting program is started, the pressure system applies pressure to the limiting block from top to bottom, the workpiece to be press riveted is pressed into the specified position of the product through the press riveting shaft of the press riveting tool, and the press riveting is completed; because the elastic member is arranged between the press riveting shaft and the limiting block, after the press riveting tool is pressed by the pressure system, the floating force of the internal elastic member acts on the workpiece to be press riveted, the pressure curve is smooth, and the product is prevented from being damaged due to direct pressure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the utility model;

[0022] Figure 2 is a structural cross-sectional schematic diagram of the press riveting tool in the utility model.

[0023] Signs: 1, base; 11, positioning groove; 2, press riveting shaft; 21, positioning pin; 22, limiting disc; 3, tool positioning sleeve; 4, elastic member; 5, limiting block; 6, bushing; 7, locking screw; 8, adjusting frame; 9, cylinder. DETAILED DESCRIPTION

[0024] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0025] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment comprising a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0026] The above and other embodiments of the present application will be described in detail below in conjunction with the drawings. Figures 1-2 The present application will be described in further detail.

[0027] Referring to Figure 1 A floating type pressure riveting device comprises a base 1 and a pressure system, and the base 1 is provided with a pressure riveting tool; the base 1 is provided with a machining station; the pressure riveting tool comprises a pressure riveting shaft 2, a tool positioning sleeve 3, an elastic member 4 and a limiting block 5, the top end of the pressure riveting shaft 2 is arranged in the tool positioning sleeve 3, the limiting block 5 is arranged at the top of the tool positioning sleeve 3, and the elastic member 4 is arranged between the pressure riveting shaft 2 and the limiting block 5; in this way, during machining, before pressure riveting, a to-be-riveted part (such as shown in B of Figure 2 and Figure 1 and Figure 2 is placed in the corresponding position of a pressure riveting product (such as shown in A of ); then the pressure riveting tool is placed in the corresponding positioning hole of the product by hand and is placed on the base 1 as a whole; the pressure riveting program is started, the pressure system applies pressure from top to bottom to the limiting block 5, the to-be-riveted part is pressed into the specified position of the product through the pressure riveting shaft 2 of the pressure riveting tool, and the pressure riveting is completed; since the elastic member 4 is arranged between the pressure riveting shaft 2 and the limiting block 5, after the pressure riveting tool is pressed by the pressure system, the floating force of the internal elastic member 4 acts on the to-be-riveted part, the pressure curve is smooth, and the product is prevented from being damaged due to the direct action of pressure.

[0028] As shown in Figure 2As shown, in order to ensure that the press riveting shaft 2 can slide up and down, a bushing 6 is arranged in the tool positioning sleeve 3, and the press riveting shaft 2 is arranged in the bushing 6, so that the press riveting shaft 2 can smoothly slide in the tool positioning sleeve 3; and a plurality of tightening screws 7 are arranged on the ring side of the tool positioning sleeve 3, the plurality of tightening screws 7 are all in threaded connection with the tool positioning sleeve 3, and extend to the annular surface of the bushing 6, so that the tightening screws 7 can be screwed to abut against the annular surface of the bushing 6, so as to tighten the bushing and prevent the displacement of the bushing 6.

[0029] As shown in the Figure 2 In order to facilitate the positioning of the press riveting tool and the workpiece and product, a positioning pin 21 is coaxially arranged at the bottom end of the press riveting shaft 2, the positioning pin 21 is matched with the positioning hole on the workpiece, and a press riveting step facing downward is formed at the connection between the positioning pin 21 and the press riveting shaft 2. When the press riveting tool and the workpiece and product are assembled, the positioning pin 21 is passed through the positioning hole of the workpiece, the positioning of the tool and the workpiece and product is completed, and when press riveting, the press riveting step contacts the workpiece to perform press riveting.

[0030] As shown in the Figure 2 In order to limit the press riveting shaft 2, a limiting disc 22 is arranged at the top end of the press riveting shaft 2, and a limiting surface facing upward is arranged in the tool positioning sleeve 3, and the limiting disc 22 is arranged above the limiting surface, so that the limiting disc 22 is clamped on the limiting surface to limit the press riveting shaft 2; and the elastic member 4 is arranged between the limiting disc 22 and the limiting block 5, and the elastic member 4 is preferably a spring, so that when the press riveting tool is subjected to pressure, the press riveting shaft 2 exerts an upward force on the elastic member 4 to compress the spring.

[0031] Further optimization is that the limiting block 5 is in threaded connection with the tool positioning sleeve 3, so as to facilitate installation.

[0032] Further optimization is that in order to facilitate the positioning of the product, a positioning groove 11 is arranged on the base 1, so that the product and the press riveting tool are arranged within the action range of the pressure system during press riveting, and the accuracy of the press riveting position is ensured.

[0033] As shown in the Figure 1 Figure 1 The pressure system includes an adjusting frame 8 and a cylinder 9, the adjusting frame 8 is arranged on one side of the base 1, the cylinder 9 is installed on the adjusting frame 8, the cylinder 9 is suspended above the base 1, and the output end of the cylinder 9 faces downward, so that the cylinder 9 works to move downward through the push rod of the output end to exert a downward force on the press riveting tool during press riveting, and the press riveting tool and the pressure system are non-rigidly connected, so as to avoid damaging the product and the tool due to misalignment.

[0034] In summary, during processing, before the riveting, the worker places the to-be-riveted part into the corresponding position of the riveting product; then the worker places the riveting tool into the corresponding positioning hole of the product, and places the whole on the base 1; the riveting program is started, the pressure system applies pressure to the limiting block 5 from top to bottom, the to-be-riveted part is pressed into the specified position of the product through the riveting shaft 2 of the riveting tool, and the riveting is completed; because the elastic member 4 is arranged between the riveting shaft 2 and the limiting block 5, after the riveting tool is pressed by the pressure system, the floating force of the internal elastic member 4 acts on the to-be-riveted part, the pressure curve is smooth, and the direct pressure on the product is prevented, so that the product is not damaged;

[0035] The riveting tool and the pressure system are non-rigidly connected, the product and the tool are prevented from being damaged due to misalignment, and the yield of the riveting product is further improved.

[0036] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution, according to the needs after reading the specification, and the modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A floating press-riveting apparatus, characterized by, The utility model relates to a press-in system for workpiece, comprising: a base (1) provided with a press-in tool on the top of the base (1); a processing station is arranged on the base (1); the press-in tool comprises a press-in shaft (2), a tool positioning sleeve (3), an elastic element (4) and a limiting block (5), the top end of the press-in shaft (2) is arranged in the tool positioning sleeve (3), the limiting block (5) is arranged on the top of the tool positioning sleeve (3), and the elastic element (4) is arranged between the press-in shaft (2) and the limiting block (5); the pressure system is used for applying pressure to the limiting block (5) from top to bottom.

2. A floating press-riveter according to claim 1, wherein: a bushing (6) is arranged in the tool positioning sleeve (3), and the press-in shaft (2) is arranged in the bushing (6).

3. A floating compression riveting apparatus according to claim 2, wherein: a plurality of clamping screws (7) are arranged on the ring side of the tool positioning sleeve (3), the clamping screws (7) are in threaded connection with the tool positioning sleeve (3), and extend to the annular surface of the bushing (6).

4. A floating compression riveting apparatus according to claim 1, wherein: a positioning pin (21) is coaxially arranged at the bottom end of the press-in shaft (2), the positioning pin (21) is matched with a positioning hole on the workpiece, and the connecting part of the positioning pin (21) and the press-in shaft (2) forms a press-in step facing the directly below.

5. A floating compression riveting apparatus according to claim 1, wherein: a limiting disc (22) is arranged at the top end of the press-in shaft (2), a limiting surface facing the directly above is arranged in the tool positioning sleeve (3), and the limiting disc (22) is arranged above the limiting surface.

6. A floating compression riveting apparatus according to claim 5, wherein: the elastic element (4) is arranged between the limiting disc (22) and the limiting block (5).

7. A floating compression riveting apparatus as defined in claim 1, wherein: the elastic element (4) is a spring.

8. A floating press-riveter according to claim 1, wherein: the limiting block (5) is in threaded connection with the tool positioning sleeve (3).

9. A floating compression riveting apparatus according to claim 1, wherein: a positioning groove (11) is arranged on the base (1).

10. A floating compression riveting apparatus as defined in claim 1, wherein: the pressure system comprises an adjusting frame (8) and a pneumatic cylinder (9), the adjusting frame (8) is arranged on one side of the base (1), the pneumatic cylinder (9) is mounted on the adjusting frame (8), the pneumatic cylinder (9) is suspended directly above the base (1), and the output end of the pneumatic cylinder (9) faces the directly below.

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