Grabbing mechanism for taking and necking crown springs

Abstract

The invention discloses a grabbing mechanism for crown spring taking and necking. The grabbing mechanism comprises an overturning structure and a necking structure. The overturning structure comprises an overturning vertical base, an overturning air cylinder is installed on the overturning vertical base, and a steering module is installed at the driving end of the overturning air cylinder. The necking structure comprises a material taking support, a transverse moving material taking part and a vertical moving material taking part are arranged on the material taking support, a pneumatic clamping jaw is arranged on the vertical moving material taking part, one end of the pneumatic clamping jaw is connected with a first mounting rod, a first spring and a first groove are formed in the first mounting rod, and the other end of the pneumatic clamping jaw is connected with a second mounting rod. A second spring, a second groove and a swing rod are installed on the second installation rod, one end of the swing rod is connected with the second elastic block, and the other end of the swing rod is connected with an inner push rod. According to the grabbing mechanism for the crown spring taking necking opening, the crown springs are vertically placed through the overturning structure, then the forming grooves of the crown springs are controlled to be staggered through the two sides of the pneumatic clamping jaw, the size is reduced in a curled mode, and the crown springs can be conveniently placed into a sleeve in the follow-up process.

Description

Technical Field

[0001] This invention relates to the technical field of crown spring production, and more particularly to a gripping mechanism for picking up and narrowing crown spring material. Background Technology

[0002] During the sleeve production process, the crown spring needs to be placed inside the sleeve. In order to ensure that the crown spring can deform radially, a forming groove is formed on the crown spring along the length direction. When the crown spring is placed into the sleeve, the radial dimension of the crown spring needs to be reduced to better fit into the inside of the sleeve and form an elastic structure. When the crown spring is radially compressed, the two sides of the forming groove are easily squeezed and damaged. If irreversible deformation occurs, the sleeve will be unusable. Summary of the Invention

[0003] One objective of this invention is to provide a gripping mechanism for taking in and reducing the opening of a crown spring, which controls the staggered forming grooves of the crown spring, making it easy to shrink the radial dimension of the crown spring and convenient to insert it into the inside of the sleeve.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A gripping mechanism for a crown spring with a narrowed opening includes a flipping structure and a narrowing structure;

[0006] The flipping structure includes a flipping stand, on which a flipping cylinder is mounted. A steering module is mounted on the drive end of the flipping cylinder. A temporary storage cavity is provided at the outer end of the steering module. A push rod is installed inside the steering module, and one end of the push rod is inserted into the temporary storage cavity.

[0007] The narrowing structure includes a material-grabbing bracket, which has a horizontal material-grabbing section and a vertical material-grabbing section. The vertical material-grabbing section is mounted on the drive end of the horizontal material-grabbing section and has a pneumatic gripper. One end of the pneumatic gripper is connected to a first mounting rod, on which a first spring and a first groove are mounted. A first spring block is connected to the first spring. The other end of the pneumatic gripper is connected to a second mounting rod, on which a second spring, a second groove, and a swing rod are mounted. A second spring block is connected to the second spring, and one end of the swing rod is connected to the second spring block. The other end of the swing rod is connected to an inner push rod.

[0008] As a preferred technical solution, an ejector cylinder is installed below the steering module, the drive end of the ejector cylinder is connected to the outer end of the ejector rod, and a vertical plate is installed in the temporary storage cavity.

[0009] As a preferred technical solution, a limit strip is fixed in the middle of the steering module, and a limit groove is provided in the middle of the push rod along the length direction, through which the limit strip passes.

[0010] As a preferred technical solution, the transverse material handling part includes a transverse cylinder, a transverse slide rail, and a transverse support. The transverse slide rail is fixed on the material handling bracket, the transverse cylinder is fixed on one side of the material handling bracket, the drive end of the transverse cylinder is connected to the transverse support, the lower end of the transverse support slides on the transverse slide rail, and the vertical material handling part is connected to the transverse support.

[0011] As a preferred technical solution, the vertical moving material handling part includes a vertical moving cylinder and a material handling assembly. The vertical moving cylinder is fixed on the horizontal moving support, and the driving end of the vertical moving cylinder is connected to a guide shaft. The guide shaft passes through the horizontal moving support and is connected to the material handling assembly.

[0012] As a preferred technical solution, the material handling component is provided with a mandrel cylinder, the driving end of the mandrel cylinder is connected to a mandrel slider, the front end of the mandrel slider is fixed with a movable mandrel, and a limit stop is provided on one side of the material handling component, the front end of the limit stop is located in a vertical movement groove on one side of the mandrel slider.

[0013] As a preferred technical solution, an auxiliary cylinder is installed at the outer end of the first mounting rod, and the driving end of the auxiliary cylinder is fixed at the outer end of the second mounting rod.

[0014] The beneficial effects of the present invention are as follows: a gripping mechanism for taking down the crown spring is provided. The gripping mechanism for taking down the crown spring uses a flipping structure to place the crown spring vertically. Then, the forming grooves of the crown spring are staggered by the two sides of the pneumatic gripper and the size is reduced by rolling it down, which makes it easier to put it into the sleeve later. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a crown spring material-grabbing and narrowing gripping mechanism as described in the embodiment;

[0017] Figure 2 This is a three-dimensional structural diagram of the flipping structure described in the embodiment;

[0018] Figure 3 This is an internal structural diagram of the flipping structure described in the embodiment;

[0019] Figure 4 This is a first three-dimensional structural diagram of the constriction structure described in the embodiment;

[0020] Figure 5 This is a second three-dimensional structural diagram of the constriction structure described in the embodiment;

[0021] Figure 6 This is a three-dimensional structural diagram of the material handling component described in the embodiment;

[0022] Figure 7 This is a cross-sectional view of the pneumatic gripper described in the embodiment.

[0023] Figures 1 to 7 middle:

[0024] 1. Tilting stand; 2. Tilting cylinder; 3. Steering module; 4. Temporary storage cavity; 5. Push rod; 6. Material pick-up bracket; 7. Pneumatic gripper; 8. First mounting rod; 9. First spring; 10. First groove; 11. First spring block; 12. Second mounting rod; 13. Second spring; 14. Second groove; 15. Swing rod; 16. Second spring block; 17. Inner push rod; 18. Ejection cylinder; 19. Vertical plate; 20. Limiting strip; 21. Limiting groove; 22. Horizontal movement cylinder; 23. Horizontal movement slide rail; 24. Horizontal movement support; 25. Vertical movement cylinder; 26. Material pick-up assembly; 27. Guide shaft; 28. Mandrel cylinder; 29. ​​Mandrel slider; 30. Movable mandrel; 31. Limiting stop bar; 32. Vertical movement groove; 33. Auxiliary cylinder; 34. Crown spring; 35. Forming groove. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 7 As shown in this embodiment, a gripping mechanism for a crown spring with a narrowed opening includes a flipping structure and a narrowing structure. The flipping structure includes a flipping stand 1, on which a flipping cylinder 2 is mounted. A steering module 3 is mounted on the drive end of the flipping cylinder 2. A temporary storage cavity 4 is provided at the outer end of the steering module 3. A push rod 5 is installed inside the steering module 3, and one end of the push rod 5 is inserted into the temporary storage cavity 4. The narrowing structure includes a material-grabbing bracket 6, on which a horizontal material-grabbing part and a vertical material-grabbing part are provided. The vertical material-grabbing part is installed on the horizontal material-grabbing part. On the drive end, a pneumatic gripper 7 is provided on the vertical material handling part. One end of the pneumatic gripper 7 is connected to a first mounting rod 8. A first spring 9 and a first groove 10 are installed on the first mounting rod 8. A first spring block 11 is connected to the first spring 9. The other end of the pneumatic gripper 7 is connected to a second mounting rod 12. A second spring 13, a second groove 14 and a swing rod 15 are installed on the second mounting rod 12. A second spring block 16 is connected to the second spring 13. One end of the swing rod 15 is connected to the second spring block 16. The other end of the swing rod 15 is connected to an inner push rod 17.

[0027] The front equipment moves the crown spring 34 into the temporary storage cavity 4. The tilting cylinder 2 controls the steering module 3 to rotate 90°, causing the crown spring 34 to change from a horizontal to an upward vertical position. Then, the push rod 5 lifts the crown spring 34 out of the temporary storage cavity 4. The horizontal and vertical material picking parts on the material picking bracket 6 simultaneously control the pneumatic gripper 7 to align with the crown spring 34. The pneumatic gripper 7 controls the first mounting rod 8 and the second mounting rod 12 to move from both sides of the crown spring 34 towards the middle. First, the inner push rod 17 will contact one side of the forming groove 35 in the crown spring 34, causing it to be recessed inward a little distance, so that the two sides of the forming groove 35 can be staggered and wound. Under the action of the swing rod 15, the second spring block 16 is extended by the force of the second spring 13. The first mounting rod 8 and the second mounting rod As the process continues, the first spring block 11 pushes the second spring block 16 outward, and the second spring 13 begins to contract. At this time, the first groove 10 and the second groove 14 begin to clamp the outer side of the crown spring 34, causing the crown spring 34 to shrink in size. Then, the first spring 9 also begins to contract, and the first groove 10 and the second groove 14 further clamp the crown spring 34. At this time, the inner push rod 17 contacts the inner side of the first mounting rod 8. The inner push rod 17 is restricted in position after being squeezed. Under the action of the swing rod 15, the second spring block 16 extends and pushes the first spring block 11 inward. The first spring 9 begins to contract. When the first spring 9 contracts to the bottom, the first groove 10 and the second groove 14 complete the radial shrinkage of the crown spring 34, making it easy to put the current crown spring 34 into the sleeve.

[0028] An ejector cylinder 18 is installed below the steering module 3. The drive end of the ejector cylinder 18 is connected to the outer end of the ejector rod 5. A vertical plate 19 is installed in the temporary storage cavity 4. A limit strip 20 is fixed in the middle of the steering module 3. A limit groove 21 is provided in the middle of the ejector rod 5 along the length direction. The limit strip 20 passes through the limit groove 21.

[0029] The ejector cylinder 18 controls the ejector rod 5 to push the crown spring 34 to the constricted structure, and uses the limit bar 20 to limit the position of the ejection.

[0030] The transverse material handling section includes a transverse cylinder 22, a transverse slide rail 23, and a transverse support 24. The transverse slide rail 23 is fixed on the material handling bracket 6, the transverse cylinder 22 is fixed on one side of the material handling bracket 6, the drive end of the transverse cylinder 22 is connected to the transverse support 24, the lower end of the transverse support 24 slides on the transverse slide rail 23, and the vertical material handling section is connected to the transverse support 24.

[0031] During the lateral movement, the lateral movement cylinder 22 controls the lateral movement support 24 to drive the vertical material picking part to move laterally, specifically by sliding on the lateral movement slide rail 23.

[0032] The vertical moving material handling part includes a vertical moving cylinder 25 and a material handling component 26. The vertical moving cylinder 25 is fixed on the horizontal moving support 24. The drive end of the vertical moving cylinder 25 is connected to a guide shaft 27. The guide shaft 27 passes through the horizontal moving support 24 and is connected to the material handling component 26.

[0033] During longitudinal movement, the vertical movement cylinder 25 controls the material handling assembly 26 to move longitudinally, and the direction of movement is ensured by the guidance of the guide shaft 27.

[0034] The material handling assembly 26 is equipped with a mandrel cylinder 28. The driving end of the mandrel cylinder 28 is connected to a mandrel slider 29. A movable mandrel 30 is fixed at the front end of the mandrel slider 29. A limit stop bar 31 is provided on one side of the material handling assembly 26. The front end of the limit stop bar 31 is located in the vertical moving groove 32 on one side of the mandrel slider 29.

[0035] Before the radial dimension of the crown spring 34 is reduced, the mandrel cylinder 28 controls the mandrel slider 29 to move downward, so that the movable mandrel 30 is inserted into the crown spring 34 from top to bottom. The vertical movement is limited by the limit stop 31 blocking the vertical movement groove 32. When the movable mandrel 30 is inside the crown spring 34, it can be ensured that the reduction dimension is not too large, and the crown spring 34 can spring back to its original shape in the sleeve.

[0036] An auxiliary cylinder 33 is mounted on the outer end of the first mounting rod 8, and the drive end of the auxiliary cylinder 33 is fixed to the outer end of the second mounting rod 12.

[0037] The crown spring 34 shrinks in size, and the force on both sides is uneven under the action of the pneumatic gripper 7. To ensure uniform force, an auxiliary cylinder 33 is added to synchronously control the opening and closing between the first mounting rod 8 and the second mounting rod 12.

[0038] It should be stated that the above specific embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto. Within the scope of the technology disclosed in the present invention, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of the present invention.

Claims

1. A crown spring material taking and necking down gripping mechanism, characterized in that, The turnover structure and the necking structure are included. The turnover structure includes a turnover pedestal, a turnover cylinder mounted on the turnover pedestal, a steering module mounted on a driving end of the turnover cylinder, a temporary storage cavity provided at an outer end of the steering module, and a push-out rod mounted in the steering module. The necking structure includes a material taking support, a horizontal material taking part and a vertical material taking part provided on the material taking support, the vertical material taking part mounted on a driving end of the horizontal material taking part, a pneumatic clamp jaw provided on the vertical material taking part, a first mounting rod connected to one end of the pneumatic clamp jaw, a first spring and a first recess mounted on the first mounting rod, a first elastic block connected to the first spring, a second mounting rod connected to another end of the pneumatic clamp jaw, a second spring, a second recess and a swing rod mounted on the second mounting rod, a second elastic block connected to the second spring, and an inner push rod connected to another end of the swing rod.

2. A crown spring material taking and necking mechanism according to claim 1, characterized in that, A ejection cylinder is mounted below the steering module, a driving end of the ejection cylinder is connected to an outer end of the push-out rod, and a vertical plate is mounted in the temporary storage cavity.

3. A crown spring material taking and necking mechanism according to claim 1, characterized in that, A limiting strip is fixed in a middle part of the steering module, and a limiting groove is provided in a middle part of the push-out rod along a length direction, and the limiting strip passes through the limiting groove.

4. The crown spring material taking and necking grabbing mechanism according to claim 1, characterized in that, The horizontal material taking part includes a horizontal movement cylinder, a horizontal movement slide rail and a horizontal support, the horizontal movement slide rail is fixed on the material taking support, the horizontal movement cylinder is fixed on one side of the material taking support, a driving end of the horizontal movement cylinder is connected to the horizontal support, a lower end of the horizontal support slides on the horizontal movement slide rail, and the vertical material taking part is connected to the horizontal support.

5. A crown spring material taking and necking mechanism according to claim 4, characterized in that The vertical material taking part includes a vertical movement cylinder and a material taking assembly, the vertical movement cylinder is fixed on the horizontal support, a driving end of the vertical movement cylinder is connected to a guide shaft, and the guide shaft is connected to the material taking assembly after passing through the horizontal support.

6. A crown spring material taking and necking mechanism according to claim 5, characterized in that A core rod cylinder is provided on the material taking assembly, a driving end of the core rod cylinder is connected to a core rod slide block, a front end of the core rod slide block is fixed with a movable core rod, one side of the material taking assembly is provided with a limiting stopper, and a front end of the limiting stopper is located in a vertical movement groove on one side of the core rod slide block.

7. The crown spring material taking and necking grabbing mechanism according to claim 1, characterized in that, An auxiliary cylinder is mounted on an outer end of the first mounting rod, and a driving end of the auxiliary cylinder is fixed on an outer end of the second mounting rod.

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