Rounding mechanism for automobile ball head connecting steel pipe

Abstract

The utility model relates to a rounding mechanism, in particular to a rounding mechanism of an automobile ball head connecting steel pipe. The rounding mechanism is composed of an upper die, a lower die and a core rod, a lifting supporting device is arranged at the front end of the lower die, the lifting supporting device is composed of a supporting plate, a sliding seat and a lifting air cylinder, and the sliding seat is fixedly connected with the core rod. The rounding mechanism can support the core rod through the lifting support, so that the core rod does not need to be held by hands for operation, the core rod and the hands can be isolated, the hands are not influenced by vibration, the hand health is effectively protected, and the labor injury is reduced. The positioning demolding ring is matched with the demolding air cylinder to push a whole-circle plate and a core rod to be demolded, the labor intensity can be reduced, the demolding efficiency is improved, meanwhile, operation between an upper mold and a lower mold is not needed, and safety can be effectively guaranteed. The problems that an existing rounding mode easily causes hand fatigue and affects hand health are solved, and the device is particularly suitable for rounding of the automobile ball head connecting steel pipe.

Description

Technical Field

[0001] The utility model relates to a rounding mechanism, in particular to a rounding mechanism for connecting a ball head of an automobile to a steel pipe. Background Art

[0002] The steel pipe for connecting the ball head of the automobile is a non-standard part, which has requirements for wall thickness and pipe diameter. Therefore, it is generally made by cutting the steel plate into a round shape. Its production process includes blanking (cutting the steel plate), rolling by a rolling machine, stamping and rounding, and welding. Since the rolling machine cannot roll into a standard circle, it is also necessary to round the plate with an arc-shaped cross section after rolling by stamping. At present, the rounding is to put the rolled plate on the mandrel, hold the mandrel, place the mandrel and the plate on the lower die, squeeze the plate on the mandrel through the upper and lower dies, and under the action of the upper die, the lower die and the mandrel, the cross section of the plate is regularized into a circle. The above-mentioned stamping and rounding process has the following disadvantages: vibration is inevitably generated during the extrusion of the plate. Due to the hand-held operation of the mandrel, the vibration of the mandrel will definitely be transmitted to the hand. During long-term operation, under strong vibration, it is easy to cause hand fatigue and damage to the health of the hand. In severe cases, it will cause hand injury. Therefore, it is necessary to develop a full-circle mechanism for connecting a car ball head to a steel pipe to solve the above problems. Summary of the invention

[0003] The utility model aims to provide a full-circle mechanism for connecting a car ball head to a steel pipe, which does not need to be held by hand, thereby isolating vibration and ensuring the health of hands, in view of the deficiencies in the prior art.

[0004] The technical solution of the utility model is:

[0005] A full-circle mechanism for connecting a car ball head to a steel pipe, which consists of an upper die connected to the punch of a stamping machine, a lower die arranged on a base below the upper die, and a core rod arranged between the upper die and the lower die, and is characterized in that a lifting support is arranged at the front end of the lower die, and the lifting support is composed of a support plate, a slide seat and a lifting cylinder, a slide seat is movably installed on the support plate on one side of the lower die through parallel slide rails, a lifting cylinder is arranged below the slide seat, and the piston rod end of the lifting cylinder is fixedly connected to the slide seat; the slide seat is fixedly connected to the core rod.

[0006] The bottom end surface of the upper die and the top end surface of the lower die are respectively provided with stamping grooves, and the cross section of the stamping grooves is semicircular.

[0007] The core rod is sleeved with a positioning demoulding ring.

[0008] A demoulding cylinder is arranged on the slide seat, and the piston rod end of the demoulding cylinder is fixedly connected with the positioning demoulding ring through a push plate.

[0009] The support plate is provided with a slide groove, which is connected with the demoulding cylinder sleeve.

[0010] The beneficial effects of the utility model are:

[0011] The full-circle mechanism of the automobile ball head connecting steel pipe can support the mandrel through the lifting support, so that the mandrel does not need to be held in hand for operation, and the mandrel and hand can be isolated, so that the hand is not affected by vibration, effectively protecting the health of the hand and reducing labor injuries. The full-circle plate and the mandrel can be demoulded by positioning the demoulding ring and cooperating with the demoulding cylinder, which can reduce labor intensity and improve demoulding efficiency. At the same time, there is no need to operate between the upper mold and the lower mold, which can effectively ensure safety. It solves the problem that the existing full-circle method easily causes hand fatigue and affects hand health, and is particularly suitable for full-circle use of automobile ball head connecting steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 A top view schematic diagram of

[0014] Figure 3 It is a structural schematic diagram of the lifting support device of the utility model;

[0015] Figure 4 yes Figure 3 Schematic top view of .

[0016] In the figure: 1. upper die, 2. lower die, 3. core rod, 4. support plate, 5. slide seat, 6. lifting cylinder, 7. slide rail, 8. stamping groove, 9. positioning demoulding ring, 10. demoulding cylinder, 11. push plate, 12. slide groove. DETAILED DESCRIPTION

[0017] The rounding mechanism of the automobile ball head connecting steel pipe is composed of an upper die 1 connected to the punch of a punching machine, a lower die 2 arranged on a base below the upper die 1, and a core rod 3 arranged between the upper die 1 and the lower die 2. A lifting support is provided on the base at the front end of the lower die 2 to support the core rod 3 during the rounding process of the plate through the lifting support, so that the core rod does not need to be held in the rounding process, and vibration is blocked from being transmitted to the hands, which effectively reduces hand fatigue and protects hand health.

[0018] The lifting support is composed of a support plate 4, a slide 5 and a lifting cylinder 6. A slide rail 7 is arranged in parallel on the support plate 4 on one side of the lower die 2. The slide 5 is movably mounted on the slide rail 7. A lifting cylinder 6 is arranged below the slide 5. The piston rod end of the lifting cylinder 6 is fixedly connected to the slide 5; the slide 5 is fixedly connected to the core rod 3. The function of the lifting cylinder 6 is to drive the slide 5 to move up and down through the lifting cylinder 6, and then drive the core rod 3 to move up and down during the lifting process of the slide 5, so that the core rod 3 can drive the plate to move toward the lower die 2, so as to facilitate the punching of the whole circle; or the core rod 3 drives the whole circle plate to move upward, so as to facilitate the separation of the whole circle plate from the lower die 2 and facilitate demolding. The function of the slide rail 7 is to limit the movement of the slide 5 through the slide rail 7, and then limit the movement and position of the core rod 3, so that the core rod 3 is not easy to deviate during the lifting process, so as to ensure the relative position of the core rod 3 and the upper die 1 and the lower die 2, and ensure the effect of punching the whole circle.

[0019] The bottom end surface of the upper die 1 and the top end surface of the lower die 2 are respectively provided with a stamping groove 8, and the cross section of the stamping groove 8 is semicircular. The stamping groove 8 on the upper die 1 can be closed with the stamping groove 8 on the lower die 2 to form a full circle, so that during the stamping process, the sheet can be squeezed from the outside through the stamping grooves 8 of the upper die 1 and the lower die 2, constraining the sheet to become a full circle.

[0020] The core rod 3 is provided with a positioning demoulding ring 9. The slide seat 5 is provided with a demoulding cylinder 10, and the piston rod end of the demoulding cylinder 10 is fixedly connected to the positioning demoulding ring 9 through a push plate 11. The role of the demoulding cylinder 10 is to push the push plate 11 to move through the demoulding cylinder 10, and then push the positioning demoulding ring 9 to move, so as to push the plate on the core rod 3 to move during the movement of the positioning demoulding ring 9, and push the plate out of the core rod 3, thereby demoulding the plate from the core rod 3, on the one hand, solving the problem that the plate is not easy to demould after being wrapped on the core rod 3 after being rounded, effectively reducing labor intensity and improving demoulding efficiency; on the other hand, it is prevented that the manual demoulding hand is between the upper mold 1 and the lower mold 2 for a long time, effectively reducing the risk of squeezing the hand by the upper mold 1 and the lower mold 2, and improving safety. The role of the positioning demoulding ring 9 is to demould the plate through the moving positioning demoulding ring 9 on the one hand, and to position the plate through the positioning demoulding ring 9 on the other hand, to ensure that the plate is between the upper mold 1 and the lower mold 2, so as to ensure that the entire plate can be rounded.

[0021] The support plate 4 is provided with a slide groove 12, which is sleeve-connected with the demoulding cylinder 10, so that the demoulding cylinder 10 can be avoided through the slide groove 12, so that the demoulding cylinder 10 can be lifted and lowered together with the slide seat.

[0022] In the initial state of the rounding mechanism of the automobile ball head connecting steel pipe, the mandrel 3 is in the middle position between the lower die 2 and the upper die 1. During operation, the rolled sheet is set on the mandrel 3 so that the end of the sheet rests on the positioning demolding ring 9. After the sheet is set in place, the lifting cylinder 6 is started, and the lifting cylinder 6 drives the sheet to move toward the lower die 2 through the slide 5 and the mandrel 3 in turn, so that the sheet and the mandrel rest in the stamping groove 8 of the lower die 2. After the sheet is in place, the punching machine is started, and the punching machine drives the upper die 1 to punch downward for many times, and the sheet is squeezed into a round shape under the action of the upper die 1, the lower die 2 and the mandrel 3. After the sheet is rounded, the upper die 1 is reset, and the lifting cylinder 6 is started, and the lifting cylinder 6 drives the mandrel 3 to reset, so that the sheet is separated from the lower die 2. After the sheet is separated from the lower die 2, the demolding cylinder 10 is started, and the demolding cylinder 10 pushes the sheet to be demolded from the mandrel 3 through the push plate 11 and the positioning demolding ring 9 in turn. After the sheet and the mandrel 3 are demoulded, the positioning demoulding ring 9 is reset to enter the next working cycle.

[0023] The rounding mechanism of the automobile ball head connecting steel pipe can support the core rod 3 through the lifting support, so that the core rod 3 does not need to be held by hand during operation, and the core rod 3 and the hand can be isolated, so that the hand is not affected by vibration, effectively protecting the health of the hand and reducing labor injuries. The positioning demoulding ring 9 cooperates with the demoulding cylinder 10 to push the whole circle of the plate and the core rod 3 to be demoulded, which can reduce labor intensity and improve demoulding efficiency. At the same time, there is no need to operate between the upper mold 1 and the lower mold 2, which can effectively ensure safety. It solves the problem that the existing rounding method easily causes hand fatigue and affects hand health, and is particularly suitable for the use of automobile ball head connecting steel pipes in rounding.

Claims

1. A rounding mechanism for connecting a steel pipe with a ball head of an automobile, comprising an upper die (1) connected to a punch of a punching machine, a lower die (2) arranged on a base below the upper die (1), and a core rod (3) arranged between the upper die (1) and the lower die (2), characterized in that: A lifting support is arranged at the front end of the lower die (2), and the lifting support is composed of a support plate (4), a slide seat (5) and a lifting cylinder (6). The slide seat (5) is movably mounted on the support plate (4) on one side of the lower die (2) via a parallel slide rail (7), and a lifting cylinder (6) is arranged below the slide seat (5). The piston rod end of the lifting cylinder (6) is fixedly connected to the slide seat (5); the slide seat (5) is fixedly connected to the core rod (3).

2. The rounding mechanism for connecting a ball head to a steel pipe of an automobile according to claim 1, characterized in that: The bottom end surface of the upper die (1) and the top end surface of the lower die (2) are respectively provided with a stamping groove (8), and the cross section of the stamping groove (8) is semicircular.

3. The rounding mechanism for connecting a ball head to a steel pipe of an automobile according to claim 1, characterized in that: The core rod (3) is sleeved with a positioning demoulding ring (9).

4. The rounding mechanism for connecting a ball head to a steel pipe of an automobile according to claim 3, characterized in that: A demoulding cylinder (10) is provided on the slide seat (5), and the piston rod end of the demoulding cylinder (10) is fixedly connected to the positioning demoulding ring (9) via a push plate (11).

5. The rounding mechanism for connecting a ball head to a steel pipe of an automobile according to claim 4, characterized in that: The support plate (4) is provided with a slide groove (12), and the slide groove (12) is sleeve-connected to the demoulding cylinder (10).

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