CN105499468B - Bolt riveting device - Google Patents

Abstract

The invention discloses a bolt riveting device, which comprises an upper pressing head and a lower pressing head matched with each other. There is a groove, and a positioning sleeve is arranged in the groove. A through hole is provided in the middle of the positioning sleeve. The outer wall of the lower end of the positioning sleeve is provided with a limiting step protruding outward. The positioning step is matched with the limiting step receiving groove, and a spring is arranged between the bottom end of the positioning sleeve and the bottom end of the groove, and the outer diameter of the spring is larger than the diameter of the through hole of the positioning sleeve, and two lower rigid stops are arranged on the base , the two lower rigid blocks are located on both sides of the lower pressure head; the upper pressure head is arranged at the bottom of the connection block, and the bottom of the connection block is also provided with two upper rigid blocks matched with the two lower rigid blocks. The invention has the advantages of realizing the riveting of multiple screws or rivets at one time, saving time and labor, high working efficiency and good riveting quality.

Description

Bolt riveting device

technical field

The invention relates to a tool, in particular to a bolt riveting device.

Background technique

Existing gears often need to be riveted together with other workpieces through rivets or screws during use. The riveting method of rivets or bolts is generally single rivet or bolt riveting. This riveting method is time-consuming, labor-intensive, and expensive. The depth of the riveting cannot be guaranteed, and it is easy to crack after the riveting or the riveting pressure is not in place, which cannot meet the requirements of the assembly line operation.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a bolt riveting device.

The present invention is achieved through the following technical solutions:

The bolt riveting device includes an upper pressing head and a lower pressing head that match, the lower pressing head is arranged on the base, a positioning step is provided outside the upper end of the base, and the lower pressing head is set on the positioning step of the base Above, the base is provided with a groove, and a positioning sleeve is provided in the groove, and a through hole is provided in the middle of the positioning sleeve, and the outer wall of the lower end of the positioning sleeve is provided with a limiting position protruding outward. Step, the lower part of the groove is provided with a limit step receiving groove matched with the limit step of the positioning sleeve, a spring is arranged between the bottom end of the positioning sleeve and the bottom end of the groove, and the spring The outer diameter of the positioning sleeve is larger than the diameter of the through hole of the positioning sleeve. When the positioning sleeve is at the highest position, the spring is in a compressed state, and the base is also provided with two lower rigid stops. The two lower rigid stops The blocks are located on both sides of the lower pressure head; the upper pressure head is arranged at the bottom of the connection block, and the bottom of the connection block is also provided with two upper rigid blocks, and the two upper rigid blocks are connected with the two A lower rigid stopper is matched.

The outer wall of the positioning sleeve is provided with a keyway, and the positioning sleeve and the base are fixed by first screws penetrating into the keyway from the side of the base.

The upper end of the through hole of the positioning sleeve is provided with a workpiece positioning step.

The upper indenter is connected to the connection block through a load-bearing block, and a part of the outer side of the upper indenter protrudes from the outer side of the bearing block, and the upper indenter and the bearing block are fixed by a second screw As a whole, the bearing block is fixed on the connection block by a third screw at the part protruding outside the upper pressure head.

Both the upper pressing head and the lower pressing head are in the shape of an annular disc.

Compared with the prior art, the present invention has the following advantages:

1. The bolt riveting device provided by the present invention adopts an integral upper and lower pressing head, thereby realizing the riveting of multiple screws or rivets at one time, saving time and labor, high working efficiency, and can ensure consistent riveting depth. Good riveting quality.

2. In the bolt riveting device provided by the present invention, a spring is provided at the bottom of the positioning sleeve of the riveting device, and the spring can absorb the force applied to the workpiece to prevent deformation of the workpiece and ensure the integrity of the workpiece.

3. The bolt riveting device provided by the present invention can adjust the downward stroke of the upper pressing head by replacing the upper rigid block and the lower rigid block, thereby effectively controlling the shape and size of the riveting, and has strong versatility.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the state structure of the screw before riveting in this embodiment.

Fig. 3 is a schematic diagram of the structure of the state after the screw is riveted in this embodiment.

Symbols in the figure: 1 upper pressure head, 2 lower pressure head, 3 base, 4 positioning sleeve, 41 through hole, 42 limit step, 43 keyway, 44 workpiece positioning step, 5 spring, 6 lower rigid stopper, 7 connection block , 8 bearing block, 9 second screw, 10 third screw, 20 upper rigid block, 30 first screw, 40 gear, 50 differential case, 60 screw.

detailed description

The following is a detailed description of the embodiments of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

Referring to FIG. 1 to FIG. 3 , the bolt riveting device provided in this embodiment includes a matching upper pressing head 1 and a lower pressing head 2 , and the upper pressing head 1 and the lower pressing head 2 are preferably in the shape of an annular disk. The lower pressing head 2 is arranged on the base 3, the outer side of the upper end of the base 3 is provided with a positioning step, the lower pressing head 2 is set on the positioning step of the base 3, the base 3 is provided with a groove, and a positioning sleeve 4 is arranged in the groove for positioning. There is a through hole 41 in the middle of the sleeve 4, the outer wall of the lower end of the positioning sleeve 4 is provided with a limit step 42 protruding outward, and the lower part of the groove is provided with a limit step that matches the limit step 42 of the positioning sleeve 4 Accommodating groove, the spring 5 is arranged between the bottom end of the positioning sleeve 4 and the bottom end of the groove, and the outer diameter of the spring 5 is greater than the diameter of the through hole 41 of the positioning sleeve 4, so that the bottom end of the positioning sleeve 4 limits the upper end of the spring 5, When the positioning sleeve 4 is at the highest position, the spring 5 is in a compressed state. Two lower rigid blocks 6 are also arranged on the base 3 , and the two lower rigid blocks 6 are located on both sides of the lower pressing head 2 .

The upper indenter 1 is arranged at the bottom of the connecting block 7, specifically: the upper indenter 1 and the connecting block 7 are connected by a load-bearing block 8, and the outer side of the bearing block 8 protrudes from a part of the outer side of the upper indenter 1, and the upper indenter 1 and the bearing block 8 are fixed as a whole by the second screw 9, and the bearing block 8 is fixed on the connection block 7 by the third screw 10 at the part protruding outside the upper indenter 1. The bottom of the connection block 7 is also provided with two upper rigid blocks 20 , and the two upper rigid blocks 20 cooperate with the two lower rigid blocks 6 .

The outer wall of the positioning sleeve 4 is provided with a keyway 43 , and the first screw 30 penetrates into the keyway 43 from the side of the base 3 to fix the positioning sleeve 4 and the base 3 to prevent the positioning sleeve 4 from rotating relative to the base 3 . The upper end of the through hole 41 of the positioning sleeve 4 is provided with a workpiece positioning step 44, and the workpiece positioning step 44 is used for positioning the workpiece.

The working process of the bolt riveting device provided in this embodiment is as follows:

Taking the gear 40 and the differential case 50 riveted by a plurality of screws 60 as an example, the gear 40 is distributed with a plurality of first through holes for the screws 60 to pass through, and the corresponding positions on the differential case 50 are distributed There are a plurality of second through holes through which the screws 60 pass. First, the differential case 50 is placed on the positioning sleeve 4 and the differential case 50 is positioned through the workpiece positioning step 44 on the positioning sleeve 4, then the gear 40 is sleeved on the differential case 50, and the screw 60 Pass through the first through hole on the gear 40 and the second through hole on the differential case 50 in turn, at this time, the lower end of the screw 60 protrudes a certain distance from the lower end of the gear 40, and there is still a certain gap between the lower end of the screw 60 and the lower pressure head 2 , the state at this time is as shown in Figure 2. Then the upper ram 1 moves downward under the action of a driving mechanism such as a press, and the upper ram 1 presses to the upper end of the screw 60, and the screw 60 drives the differential case 50 and the gear 40 to move downward together, and at this time the positioning sleeve 4 follows Descending, the spring 5 is compressed, and when the lower end of the screw 60 hits the lower pressure head 2, the lower end of the screw 60 is thicker and its diameter is greater than the diameter of the second through hole of the gear 40, when the upper rigid stop 20 and the lower rigid stop When 6 is touched, the upper pressing head 1 is prevented from continuing to descend, that is, the riveting of multiple screws 60 is completed, and the state at this time is shown in FIG. 3 . Finally, the upper pressing head 1 returns, and the positioning sleeve 4 bounces up automatically under the action of the spring 5, and the spring 5 returns to the state before the riveting, so that the next riveting.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (3)

1. bolt riveting device, it is characterised in that：Including the seaming chuck and push-down head being engaged, the push-down head is arranged on base On, positioning step is provided with the outside of the base upper end, the push-down head is sleeved on the positioning step of the base, the base Groove is provided with, positioning sleeve is provided with the groove, the through hole of a up/down perforation is provided among the positioning sleeve, it is described fixed Position set lower end outer wall is provided with the limited step protruded laterally, and the groove bottom is provided with the limited step phase with the positioning sleeve The limited step holding tank of cooperation, is provided with spring between the positioning sleeve bottom and the groove bottom, and the spring External diameter is more than the through-hole diameter of the positioning sleeve, and when the positioning sleeve is in extreme higher position, the spring is in compressive state, Rigid block under two is additionally provided with the base, described two lower rigid blocks are located at the both sides of the push-down head；It is described Seaming chuck is arranged on the bottom of contiguous block, and the contiguous block bottom is additionally provided with two upper rigid blocks, described two upper rigidity gears Block is engaged with described two lower rigid blocks；The positioning sleeve outer wall is provided with keyway, is worn by the first screw from base side Enter in the keyway so as to which positioning sleeve and base be fixed；The upper end of the through hole of the positioning sleeve is provided with workpiece positioning step.

2. bolt riveting device as claimed in claim 1, it is characterised in that：Pass through between the seaming chuck and the contiguous block Force-bearing piece is connected, and a part, the seaming chuck on the outside of the seaming chuck are protruded on the outside of the force-bearing piece and is passed through with the force-bearing piece Second screw is fixed as one, and position of the force-bearing piece on the outside of the protrusion seaming chuck is fixed on described by the 3rd screw On contiguous block.

3. bolt riveting device as claimed in claim 1, it is characterised in that：The seaming chuck and push-down head are annular disk Shape.