Cylinder contraction shaping mechanism

Abstract

The utility model discloses an air cylinder contraction shaping mechanism which comprises a bottom plate assembly, an inner tensioning module and an outer tensioning module are arranged on the bottom plate assembly in a sliding mode, a shaping gap is reserved between the outer tensioning module and the inner tensioning module, and a butt joint inclined face is arranged on the inner tensioning module. The movable die assembly comprises a pressing conical shaft, a pushing inclined face is arranged on the side, close to the inner tensioning die block, of the pressing conical shaft, and the pushing inclined face can abut against the butt-joint inclined face and move relative to the butt-joint inclined face. The utility model provides an air cylinder shrinking and shaping mechanism which can conveniently process a workpiece and can quickly take out the workpiece, so that the purposes of greatly reducing the labor intensity of workers, improving the efficiency and the yield and reducing the production cost are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rim processing technical field especially relates to a cylinder contraction shaping mechanism. BACKGROUND

[0002] In the production process of using sheet metal to make rims, after the sheet metal is completed by roll forming, because of some specific use requirements, the rim single side flange needs to be expanded and shaped to meet the use technical requirements. Generally, a specific clamp is used to be clamped on a lathe, and a roller is used to extrude it to achieve the required shape of the flange. The operation method has certain risks, the size control is not high, the quality is unstable, the operation of the staff is not convenient, and the labor intensity of manual operation is high and the efficiency is low.

[0003] For example, the publication number "CN209680927U" discloses "an expansion die for a tubeless wheel rim", which includes a lower die and an upper die arranged above the lower die. The lower die includes a first flange expansion part, a first 15° face expansion part and a first trapezoidal groove expansion part arranged from bottom to top, and the angle between the outer side of the first 15° face expansion part and the horizontal plane is 15°. The upper die includes a second flange expansion part, a second 15° face expansion part, a rim mounting surface expansion part and a second trapezoidal groove expansion part arranged from top to bottom, and the angle between the outer side of the second 15° face expansion part and the horizontal plane is 15°. However, in actual application, this type of expansion method has certain risks, the operation of the staff is not convenient, and the expansion precision is not high, and the production efficiency is not high. SUMMARY

[0004] In view of the problems of the existing technology mentioned in the background art that the machining production is not safe and the machining precision is not high, the utility model provides a cylinder contraction shaping mechanism, which can conveniently machine workpieces and quickly take out, thereby greatly reducing the labor intensity, improving the efficiency and yield, and reducing the production cost.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.

[0006] The utility model provides a kind of cylinder shrinkage shaping mechanism, including bottom plate assembly, the inner module of tensioning and the outer module of tensioning are slid on the bottom plate assembly, shaping gap is left between the outer module of tensioning and inner module of tensioning, abutting bevel is provided on the inner module of tensioning;Moving die assembly, the inner module of tensioning is provided with push bevel on the side close to the inner module of tensioning of compression cone shaft, push bevel can abut against abutting bevel and move relatively.In prior art, generally through the extrusion of roller to expand the rim, thus need to use specific fixture, clamped on lathe, then through roller to extrude it, reach the shape of rim requirement.The operation mode has certain risk, size control is not high, quality is unstable, employee operation is inconvenient, artificial operation labor intensity is big, the shortcoming of low efficiency.Therefore, to the above problems, in the application, by placing product between the outer module of tensioning and the inner module of tensioning then moving the inner module of tensioning to extrude product, wherein the outer module of tensioning and the inner module of tensioning are operated by vertical placement, wherein the inner module of tensioning is provided with abutting bevel, and the end of compression cone shaft is provided with push bevel, when push bevel and abutting bevel are attached, when compression cone shaft continues to move, it can drive the inner module of tensioning to move synchronously, because the inner module of tensioning is slidably connected on bottom plate assembly, so the inner module of tensioning can move relative to the outer module of tensioning, to compress shaping gap, to extrude product in shaping gap, so that product can be expanded outward, so in the process of using the device, first, the position of the outer module of tensioning is fixed, to ensure that the inner module of tensioning can expand the rim edge of rim to specified size, the method can ensure the safety during expansion, and can ensure the accuracy of expansion, to ensure that it can be expanded to specified size, and processing and placing are more convenient, the vertical extrusion force can be converted into horizontal displacement by abutting bevel and push bevel, to ensure that rim is placed more stably, to ensure the stability of extrusion, to ensure the safety during working.

[0007] Preferably, the bottom plate assembly is provided with a sliding groove, the inner sliding block is connected to the bottom of the inner module of tensioning, and the inner sliding block is slidably connected in the sliding groove.

[0008] Preferably, the bottom plate assembly is provided with a sliding groove, the outer sliding block is connected to the bottom of the outer module of tensioning, and the outer sliding block is slidably connected in the sliding groove.

[0009] As preferred, the bottom plate assembly is provided with a driving unit connected to the outer sliding block, and the driving unit drives the outer sliding block and the tensioning outer module to move synchronously. By providing the driving unit on the bottom plate assembly, the outer sliding block can be driven to move, and since the outer sliding block is connected to the tensioning outer module, when the driving unit moves, the tensioning outer module can also move to the specified position. Since the movement of the outer sliding block is driven by the driving unit, the position of the outer sliding block can be fixed, and the stability of the position of the tensioning outer module can be ensured.

[0010] As preferred, the movable die assembly includes an upper die plate connected with a compression cone shaft at the center, and a positioning ring connected to one side of the upper die plate close to the edge. During the shaping process, the positioning ring abuts against the tensioning outer module. The movable die assembly is divided into the upper die plate, the positioning ring, and the compression cone shaft. The upper die plate, the compression cone shaft, and the positioning ring move synchronously. The compression cone shaft drives the tensioning inner module to move, and the positioning ring further fixes the position of the tensioning outer module, thereby avoiding extrusion on the driving unit during the expansion of the rim, protecting the driving unit, and fixing the position of the positioning ring to ensure that the tensioning outer module can provide reliable support.

[0011] As preferred, the tensioning outer module is provided with a guide slope close to the upper die plate. The guide slope is provided on the tensioning outer module, close to the upper die plate and close to the positioning ring. When the movable die assembly moves close to the tensioning inner module and the tensioning outer module, the guide slope ensures the abutment between the positioning ring and the tensioning outer module, improving the abutment efficiency.

[0012] As preferred, a reset member is provided between the tensioning outer module and the tensioning inner module. After the compression cone shaft is removed after the work is completed, the reset member drives the tensioning inner module to rebound, so that the tensioning inner module is reset, facilitating the placement of the rim product for the next expansion.

[0013] As preferred, the tensioning inner module is provided with a circular groove close to the tensioning outer module, and the reset member is connected in the circular groove. The reset member is a circular spring. The reset member is arranged in the circular groove to improve the force transmission effect of the reset member, and the circular groove can limit the position of the reset member to ensure that the reset member can be stably reset without deviation. The reset member can be various elastic members or components that can be actively driven, including but not limited to air cylinders and oil cylinders.

[0014] As preferred, the reset member is an elastic unit, and the elastic unit is in abutment with the inner and outer tension modules respectively. Through the self-resetting effect of the elastic unit, the inner tension module can be reset by the elastic unit when the outer tension module is fixed, so as to help the inner tension module return to the initial position.

[0015] As preferred, the outer and inner tension modules are provided in split type with several pieces. The outer and inner tension modules are provided in split type, so as to adapt to the expansion demand of the circle and ensure the uniformity of the extrusion on the rim edge.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) The workpiece can be conveniently machined, and can be quickly taken out, so as to greatly reduce the labor intensity, improve the efficiency and yield, and reduce the production cost;

[0018] (2) The stability of the outer tension module during the pressing process can be ensured, and the structural stability of the driving unit is protected;

[0019] (3) The stability of the outer and inner tension modules during the movement process can be improved, and the guiding effect is provided through the inner and outer sliding blocks. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the structural schematic diagram of the utility model.

[0021] Figure 2 is the structural schematic diagram of the movable die assembly in the utility model.

[0022] Figure 3 is the structural schematic diagram of the bottom plate assembly in the utility model.

[0023] Figure 4 is the structural schematic diagram of the outer tension module in the utility model.

[0024] Figure 5 is the structural schematic diagram of the inner tension module in the utility model.

[0025] Figure 6 is Figure 1 is the enlarged view of A in the utility model.

[0026] Figure 7 is the top view of the outer tension module in the utility model.

[0027] Figure 8 is the top view of the inner tension module in the utility model.

[0028] In the drawing:

[0029] 1 bottom plate assembly, 11 sliding groove, 12 inner sliding block, 13 outer sliding block, 14 driving unit;

[0030] 2 tensioning inner module, 21 butt joint inclined surface, 22 circular groove, 23 circular spring;

[0031] 3 tensioning outer module, 31 guide inclined surface;

[0032] 4 shaping gap;

[0033] 5 movable mold assembly, 51 pressing taper shaft, 511 pushing inclined surface, 52 upper mold plate, 53 positioning ring. DETAILED DESCRIPTION

[0034] The utility model will be further described below in combination with the drawings and specific embodiments.

[0035] Embodiment 1:

[0036] As Figure 1As shown, a cylinder shrinkage shaping mechanism comprises a base plate assembly 1, a tight inner module 2 and a tight outer module 3 are slid on the base plate assembly 1, a shaping gap 4 is left between the tight outer module 3 and the tight inner module 2, and an abutting inclined surface 21 is arranged on the tight inner module 2; a movable die assembly 5 comprises a compression cone shaft 51, a pushing inclined surface 511 is arranged on the side of the compression cone shaft 51 close to the tight inner module 2, and the pushing inclined surface 511 can abut against and move relative to the abutting inclined surface 21. In the prior art, the rim is generally expanded by the extrusion of the roller, so that a special clamp is used to be clamped on the lathe, and then the roller is used to extrude it to reach the required shape of the rim. This operation mode has certain danger, low size control, unstable quality, inconvenient operation for employees, high labor intensity and low efficiency. Therefore, in order to solve the above problems, in the present application, the product is placed between the tight outer module 3 and the tight inner module 2, and then the tight inner module 2 is moved to extrude the product, wherein the tight outer module 3 and the tight inner module 2 are vertically placed for operation, wherein the abutting inclined surface 21 is arranged on the tight inner module 2, and the end of the compression cone shaft 51 is provided with the pushing inclined surface 511, when the pushing inclined surface 511 abuts against the abutting inclined surface 21, and when the compression cone shaft continues to move, the tight inner module 2 can be synchronously moved, since the tight inner module 2 is slidably connected to the base plate assembly 1, the tight inner module 2 can move relative to the tight outer module 3, so as to compress the shaping gap 4, and then extrude the product in the shaping gap 4, so as to expand the product outwardly. Therefore, in the process of using the device, first, the position of the tight outer module 3 needs to be fixed, so as to ensure that the tight inner module 2 can expand the rim edge of the rim to a specified size. This method can ensure the safety during expansion, and can ensure the expansion precision and the expansion to a specified size, and the processing and placement are more convenient. The abutting inclined surface 21 and the pushing inclined surface 511 can convert the vertical extrusion force into horizontal displacement, so as to ensure that the rim is placed more stably, and the extrusion stability and safety during operation are ensured.

[0037] As shown in Figure 3 , 5 , a sliding groove 11 is arranged on the base plate assembly 1, and an inner sliding block 12 is connected to the bottom of the tight inner module 2 and slidably connected in the sliding groove 11. The sliding groove 11 arranged on the base plate assembly 1 can be slidably connected with the inner sliding block 12, so as to guide the movement of the tight inner module 2, and ensure the movement stability of the tight inner module 2.

[0038] As shown in Figure 3 , 4As shown, the bottom plate assembly 1 is provided with a sliding groove 11, and the bottom of the tensioning outer module 3 is connected with an outer sliding block 13 which is slidingly connected in the sliding groove 11. By slidingly connecting the outer sliding block 13 on the bottom plate assembly 1, the movement of the tensioning outer module 3 can be more stable, and the movement of the tensioning outer module 3 is guided.

[0039] As shown in Figure 1 , 4 , the bottom plate assembly 1 is provided with a driving unit 14, the driving unit 14 is connected with the outer sliding block 13, and the driving unit 14 drives the outer sliding block 13 and the tensioning outer module 3 to move synchronously. By providing the driving unit 14 on the bottom plate assembly 1, the outer sliding block 13 can be actuated, and since the outer sliding block 13 is connected with the tensioning outer module 3, when the driving unit 14 is actuated, the tensioning outer module 3 can be moved to a specified position. Since the movement of the outer sliding block 13 is driven by the driving unit 14, the position of the outer sliding block 13 can be fixed, and the position stability of the tensioning outer module 3 can be ensured.

[0040] As shown in Figure 1 , 2 , the movable die assembly 5 includes an upper die plate 52, the center of the upper die plate 52 is connected with a pressing taper shaft 51, and the upper die plate 52 is connected with a positioning ring 53 near one edge side. During the shaping process, the positioning ring 53 abuts against the tensioning outer module 3. The movable die assembly is divided into the upper die plate 52, the positioning ring 53 and the pressing taper shaft 51. The upper die plate 52 and the pressing taper shaft 51 and the positioning ring 53 move synchronously. The pressing taper shaft 51 can drive the tensioning inner module 2 to move, and the positioning ring 53 can further fix the position of the tensioning outer module 3, thereby avoiding extrusion of the driving unit 14 during the process of expanding the rim, protecting the driving unit 14, and fixing and restraining the position of the positioning ring 53 to ensure that the tensioning outer module 3 can provide reliable support effect.

[0041] As shown in Figure 1 , 4 , the tensioning outer module 3 is provided with a guide inclined surface 31 near the upper die plate 52. The guide inclined surface 31 is provided on the tensioning outer module 3, and is near the upper die plate 52 and near the positioning ring 53. Therefore, when the movable die assembly 5 moves near the tensioning inner module 2 and the tensioning outer module 3, the guide inclined surface 31 can ensure the butt joint between the positioning ring 53 and the tensioning outer module 3, and improve the butt joint efficiency.

[0042] As shown in Figure 7 , 8As shown, both the outer tensioning module 3 and the inner tensioning module 2 are arranged in a segmented manner, comprising several units. By arranging the outer tensioning module 3 and the inner tensioning module 2 in a segmented manner, they can adapt to the expansion requirements of a circular shape and ensure uniform compression of the wheel rim edge.

[0043] Example 2:

[0044] like Figure 6 As shown, unlike Embodiment 1, a reset component is provided between the outer tensioning module 3 and the inner tensioning module 2 in this embodiment. The reset component between the outer tensioning module 3 and the inner tensioning module 2 allows the inner tensioning module 2 to spring back after the clamping cone shaft 51 is removed upon completion of the work, thus resetting the inner tensioning module 2 and facilitating the subsequent placement of the rim product for the next expansion.

[0045] like Figure 6 As shown, a circular groove 22 is provided on the side of the inner tensioning module 2 near the outer tensioning module 3. A reset component, which is a circular spring 23, is connected inside the circular groove. Placing the reset component in the circular groove 22 can improve the force transmission effect of the reset component and ensure that the circular groove 22 can limit the position of the reset component, ensuring that the reset component can obtain a stable reset effect and avoiding displacement. The reset component can be various elastic elements or actively driven components, including but not limited to cylinders, hydraulic cylinders, etc.

[0046] like Figure 6 As shown, the reset component is an elastic unit, with the inner tensioning module 2 and the outer tensioning module 3 respectively abutting on both sides. Through the self-resetting effect of the elastic unit, when the outer tensioning module 3 is fixed in position, the elastic unit can drive the inner tensioning module 2 to reset, thereby helping the inner tensioning module 2 return to its initial position.

[0047] The device in the embodiment further comprises a bottom plate assembly 1, the inner and outer tensioning modules 2 and 3 are slid on the bottom plate assembly 1, the shaping gap 4 is left between the inner and outer tensioning modules 2 and 3, and the abutting inclined surface 21 is arranged on the inner tensioning module 2; the movable die assembly 5 comprises the compression cone shaft 51, the pushing inclined surface 511 is arranged on the side of the compression cone shaft 51 close to the inner tensioning module 2, and the pushing inclined surface 511 can abut against and move relative to the abutting inclined surface 21. The sliding groove 11 is arranged on the bottom plate assembly 1, the inner sliding block 12 is connected to the bottom of the inner tensioning module 2, and the inner sliding block 12 is slidably connected in the sliding groove 11. The sliding groove 11 is arranged on the bottom plate assembly 1, the outer sliding block 13 is connected to the bottom of the outer tensioning module 3, and the outer sliding block 13 is slidably connected in the sliding groove 11. The driving unit 14 is arranged on the bottom plate assembly 1, the driving unit 14 is connected to the outer sliding block 13, and the driving unit 14 drives the outer sliding block 13 and the outer tensioning module 3 to move synchronously. The movable die assembly 5 comprises the upper die plate 52, the compression cone shaft 51 is connected to the center of the upper die plate 52, the positioning ring 53 is connected to the side of the upper die plate 52 close to the edge, and the positioning ring 53 abuts against the outer tensioning module 3 in the shaping process. The guiding inclined surface 31 is arranged on the side of the outer tensioning module 3 close to the upper die plate 52. The outer and inner tensioning modules 2 and 3 are both provided with a plurality of parts in a split type.

[0048] In the prior art, the rim is generally expanded by the extrusion of the roller, so a special clamp is needed to be clamped on the lathe, and then the rim is extruded by the roller to reach the required shape. This operation mode has certain danger, low size control, unstable quality, inconvenient operation for employees, high labor intensity and low efficiency. Therefore, in order to solve the above problems, the product is placed between the tensioning outer module 3 and the tensioning inner module 2, and then the product is extruded by moving the tensioning inner module 2. The tensioning outer module 3 and the tensioning inner module 2 are operated by vertical placement. The tensioning inner module 2 is provided with a butt joint slope 21, and the end of the compression cone shaft 51 is provided with a pushing slope 511. When the pushing slope 511 is attached to the butt joint slope 21, the tensioning inner module 2 can be synchronously moved when the tensioning cone shaft continues to move. Since the tensioning inner module 2 is slidingly connected to the bottom plate assembly 1, the tensioning inner module 2 can move relative to the tensioning outer module 3, so as to compress the shaping gap 4 and extrude the product in the shaping gap 4, thereby expanding the product outward. Therefore, during use of the device, the position of the tensioning outer module 3 needs to be fixed first, so as to ensure that the rim edge of the rim can be expanded to a specified size. This method can ensure the safety during expansion, and can ensure the expansion precision and the specified size. The device is more convenient to process and place. The butt joint slope 21 and the pushing slope 511 can convert the vertical extrusion force into horizontal displacement, so as to ensure that the rim is placed more stably, thereby ensuring the stability of the extrusion and the safety during operation.

[0049] The sliding groove 11 provided on the bottom plate assembly 1 can be slidingly connected with the inner sliding block 12, so as to guide the movement of the tensioning inner module 2, thereby ensuring the stability of the movement of the tensioning inner module 2.

[0050] The outer sliding block 13 is slidingly connected to the bottom plate assembly 1, so that the movement of the tensioning outer module 3 can be more stable, and the movement of the tensioning outer module 3 is guided.

[0051] The driving unit 14 is provided on the bottom plate assembly 1, which can drive the outer sliding block 13 to move. Since the outer sliding block 13 is connected to the tensioning outer module 3, when the driving unit 14 moves, the tensioning outer module 3 can move to a specified position. Since the movement of the outer sliding block 13 is driven by the driving unit 14, the position of the outer sliding block 13 can be fixed, and the stability of the position of the tensioning outer module 3 can be ensured.

[0052] The movable die assembly is divided into an upper die plate 52, a positioning ring 53 and a compression taper shaft 51, and the synchronous movement of the upper die plate 52 and the compression taper shaft 51 and the positioning ring 53 is realized, wherein the compression taper shaft 51 can drive the expansion inner module 2 to move, and the positioning ring 53 can further fix the position of the expansion outer module 3, thereby avoiding extrusion on the driving unit 14 in the process of expanding the rim and protecting the driving unit 14, and at the same time, the position of the positioning ring 53 is fixed and constrained, so that the expansion outer module 3 can provide reliable supporting effect.

[0053] The expansion outer module 3 is provided with a guide slope 31, wherein the guide slope 31 is located on the side of the expansion module close to the upper die plate 52 and the side of the expansion module close to the positioning ring 53, so that when the movable die assembly 5 moves close to the side of the expansion inner module 2 and the expansion outer module 3, the abutment between the positioning ring 53 and the expansion outer module 3 can be ensured through the guide slope 31, and the abutment efficiency is improved.

[0054] The expansion outer module 3 and the expansion inner module 2 are set as split parts, so that the circular expansion demand can be met, and the uniformity of extrusion on the rim edge can be ensured.

Claims

1. A cylinder contraction reshaping mechanism characterized by comprising: The utility model relates to a plastic injection moulding machine, including have: The bottom plate subassembly is set with the sliding groove, and the inner sliding block is connected at the bottom of the tight inner module and is slidably connected in the sliding groove. The bottom plate subassembly is set with the sliding groove, and the outer sliding block is connected at the bottom of the tight outer module and is slidably connected in the sliding groove.

2. A cylinder collapsing mechanism as claimed in claim 1, wherein The bottom plate subassembly is set with the driving unit, and the driving unit is connected with the outer sliding block, drives the outer sliding block and the tight outer module to move synchronously.

3. A cylinder collapsing mechanism as claimed in claim 1, wherein The movable die assembly includes an upper die plate, the upper die plate is connected with the compression cone shaft at the center, the upper die plate is connected with the positioning ring on the side close to the edge, and the positioning ring abuts against the tight outer module during the shaping process.

4. A cylinder collapsing mechanism as claimed in claim 3, wherein The tight outer module is provided with a guide inclined surface on the side close to the upper die plate.

5. A cylinder collapsing mechanism as claimed in claim 1, wherein The tight outer module and the tight inner module are provided with a reset member therebetween.

6. A cylinder collapsing mechanism as claimed in claim 5, wherein The tight inner module is provided with a circular groove on the side close to the tight outer module, the reset member is connected in the circular groove, and the reset member is a circular spring.

7. A cylinder deactivation mechanism according to any one of claims 1-6, characterized in that The reset member is an elastic unit, and the elastic unit abuts against the tight inner module and the tight outer module on the two sides respectively.

8. A cylinder collapsing mechanism as claimed in claim 7, wherein The tight outer module and the tight inner module are both provided with a plurality of parts in a split type.

9. A cylinder collapsing mechanism as claimed in claim 7, wherein ​ 10. A cylinder deactivation mechanism according to any one of claims 1-6, characterized in that ​

Images