Automobile part stamping device
Patent Information
- Application Number
- CN202522096958.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0004]然而,现有冲压装置的结构中卡接式的模具与安装座的嵌合面易因冲压过程中的高频振动出现松动,导致模具定位精度下降,甚至引发零部件尺寸偏差;而双向螺杆则仅能对模具的两侧进行夹持,无法限制模具在垂直于夹持方向的位移,在承受较大冲压载荷时,模具易发生微小窜动,不仅影响冲压件质量,长期使用还可能加剧模具与安装结构的磨损,增加设备维护成本
本实用新型提供的汽车零件冲压装置,通过C型连接架配合气缸驱动安装板运动,实现上下模具的精准配合;利用驱动组件与拆装组件的传动,能快速完成拆装组件与固定块的插接或分离,实现模具的快速更换;同时,拆装组件与固定块的插接配合及稳定的安装结构,保证了模具使用时的稳固性,提升了冲压加工的效率与可靠性。
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Figure CN224824088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing equipment technology, and in particular to an automobile parts stamping device. Background Technology
[0002] Stamping of automotive parts involves applying external force to sheet or strip metal using stamping equipment and a die, causing the material to undergo plastic deformation or separation, ultimately forming parts that meet automotive assembly requirements. This process is widely used in the mass production of key automotive components such as body panels and chassis structural parts due to its advantages of high production efficiency, good forming accuracy, and high material utilization.
[0003] Currently, the dies used in the stamping process of automotive parts need to be frequently changed according to the differences in the shape and size of the parts. Therefore, to meet the die-changing requirements, most existing dies adopt a detachable structure design, with common fixing methods including snap-fit and two-way screw clamping. The snap-fit method achieves fixation by interlocking the protrusions and grooves on the mounting base, which is simple in structure and easy to operate; the two-way screw clamping method uses the rotation of the screw to drive the clamping plates on both sides to clamp the die, relying on the self-locking property of the threads to improve the connection stability.
[0004] However, in the existing stamping equipment structure, the mating surface between the snap-fit mold and the mounting base is prone to loosening due to high-frequency vibration during the stamping process, resulting in a decrease in mold positioning accuracy and even causing part size deviations. On the other hand, the bidirectional screw can only clamp the two sides of the mold and cannot restrict the displacement of the mold perpendicular to the clamping direction. When subjected to large stamping loads, the mold is prone to slight movement, which not only affects the quality of stamped parts, but may also aggravate the wear of the mold and mounting structure with long-term use, increasing equipment maintenance costs. Utility Model Content
[0005] The purpose of this invention is to provide a stamping device for automotive parts to alleviate the technical problems of mold loosening and vertical movement in the prior art.
[0006] The automotive parts stamping device provided by this utility model includes: a connecting frame, a cylinder, a mounting plate, a mounting rod, a connecting plate, a fixing plate, a drive assembly, a disassembly assembly, a fixing block, and a mold; The connecting frame is C-shaped, and two mounting plates are set inside the connecting frame. One mounting plate is fixed to the bottom surface of the inner cavity of the connecting frame, and the other mounting plate is connected to the output end of the cylinder that passes through the top surface of the connecting frame. The mounting rod, connecting plate and fixing plate are arranged sequentially on the opposite sides of the two mounting plates. A drive assembly is set between the mounting plate and the connecting plate. The drive assembly is connected to the disassembly assembly. The disassembly assembly is inserted into the fixing block. A mold is set on the opposite side of the two fixing blocks.
[0007] Furthermore, the assembly and disassembly components include a rotating ring block, a rotating inclined block, a sliding groove, a sliding column, a connecting block, a clamping block, and an insert block; The bottom of the rotating ring block is rotatably connected to the fixed plate, the top of the rotating ring block is connected to the drive assembly, and the surface of the rotating ring block is fixedly connected to the rotating inclined block; the fixed plate has four sliding grooves along the circumference of the rotating ring block, and a sliding column is slidably connected to the inner cavity of each sliding groove. The upper surface of the sliding column is connected to the rotating inclined block and is used to drive the sliding column to move along the sliding groove. The bottom of the sliding column is equipped with a connecting block, the bottom of the connecting block is equipped with a clamping block, and the bottom of the clamping block is folded back to form an inserting block, which is inserted into the fixing block.
[0008] Furthermore, slots are provided around the perimeter of the fixing block, and the slots are inserted into the plug block.
[0009] Furthermore, the drive assembly includes a connecting column, gears, racks, push plates, and a push cylinder; One end of the connecting column is connected to the rotating ring block, and the other end of the connecting column passes through the connecting plate to connect to the gear. The teeth of the gear mesh with the rack. One side of the rack is fixed to the push plate, and the push plate is connected to the output end of the push cylinder. The push cylinder is set on the surface of the connecting plate.
[0010] Furthermore, a limiting groove is formed on the lower surface of the sliding column, and a limiting plate is slidably connected to the inner cavity of the limiting groove.
[0011] Furthermore, a limiting block is fixedly connected to the bottom of the connecting block, and a hollow groove is opened on the top of the clamping block. The surface of the limiting block is slidably connected to the inner cavity of the hollow groove.
[0012] Furthermore, threaded holes are concentrically opened on one side of both the clamping block and the connecting block, and fastening bolts are threaded into the inner cavities of the multiple threaded holes.
[0013] Furthermore, a limiting ring block is fixedly connected to one end of the sliding column, and the diameter of the limiting ring block is larger than the diameter of the sliding column.
[0014] Beneficial effects: The automotive parts stamping device provided by this utility model achieves precise matching of upper and lower dies by using a C-shaped connecting frame in conjunction with a cylinder to drive the mounting plate. By utilizing the transmission between the drive component and the disassembly component, the disassembly component and the fixing block can be quickly connected or separated, enabling rapid die replacement. At the same time, the connection and matching of the disassembly component and the fixing block, as well as the stable installation structure, ensure the stability of the die during use and improve the efficiency and reliability of stamping. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 A schematic diagram of the structure of the stamping device for automotive parts provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the mounting plate of the automotive parts stamping device provided in an embodiment of the present utility model; Figure 3 A schematic diagram of the drive assembly of the automotive parts stamping device provided in this embodiment of the utility model; Figure 4 A schematic diagram of the upper structure of the disassembly and assembly assembly of the automotive parts stamping device provided in this embodiment of the utility model; Figure 5 A schematic diagram of the lower structure of the disassembly and assembly assembly of the automotive parts stamping device provided in this embodiment of the utility model; Figure 6 An exploded view of the disassembly and assembly components of the automotive parts stamping device provided in an embodiment of this utility model; Figure 7 An exploded view of the slot in the stamping device for automotive parts provided in this embodiment of the present invention.
[0017] Icons: 1-Connecting frame; 2-Cylinder; 3-Mounting plate; 4-Mounting rod; 5-Connecting plate; 6-Fixing plate; 7-Drive assembly; 701-Connecting column; 702-Gear; 703-Rack; 704-Push plate; 705-Push cylinder; 8-Disassembly assembly; 801-Rotating ring block; 802-Rotating inclined block; 803-Slide groove; 804-Slide column; 805-Connecting block; 806-Clamping block; 807-Insertion block; 808-Limiting ring block; 9-Fixing block; 901-Slot; 10-Mold; 11-Limiting groove; 12-Limiting plate; 13-Restricting block; 14-Hollow groove; 15-Threaded hole. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0025] like Figures 1 to 7 As shown, this utility model provides a stamping device for automotive parts, including: a connecting frame 1, a cylinder 2, a mounting plate 3, a mounting rod 4, a connecting plate 5, a fixing plate 6, a drive assembly 7, a disassembly assembly 8, a fixing block 9, and a mold 10. The connecting frame 1 is C-shaped. Two mounting plates 3 are set inside the connecting frame 1. One mounting plate 3 is fixed to the bottom surface of the inner cavity of the connecting frame 1, and the other mounting plate 3 is connected to the output end of the cylinder 2 that passes through the top surface of the connecting frame 1. The opposite sides of the two mounting plates 3 are arranged with mounting rod 4, connecting plate 5 and fixing plate 6 in sequence. A drive assembly 7 is set between the mounting plate 3 and the connecting plate 5. The drive assembly 7 is connected to the disassembly assembly 8. The disassembly assembly 8 is inserted into the fixing block 9. A mold 10 is set on the opposite side of the two fixing blocks 9.
[0026] Specifically, the opening of the C-type connecting frame 1 faces one side, and two mounting plates 3 are arranged correspondingly on the upper and lower parts of its inner cavity: the lower mounting plate 3 is fixed to the center of the bottom surface of the inner cavity of the connecting frame 1, and the upper mounting plate 3 is located on the upper part of the inner cavity of the connecting frame 1, and is vertically fixed to the output end of the cylinder 2. The cylinder body of the cylinder 2 is fixed to the center of the top surface of the connecting frame 1 through the flange, and the output end vertically downward penetrates the top surface of the connecting frame 1 and forms a connection with the upper mounting plate 3. Four mounting rods 4 are fixed horizontally to the opposite sides (i.e., inner sides) of the two mounting plates 3. The other end of the mounting rods 4 is welded perpendicularly to one side wall of the connecting plate 5. The other side wall of the connecting plate 5 is connected to the side wall of the fixing plate 6 through a support column. The drive assembly 7 is horizontally embedded between the inner side wall of the mounting plate 3 and the side wall of the connecting plate 5. The power output end of the drive assembly 7 is linked with the disassembly assembly 8 through gear meshing. The disassembly assembly 8 horizontally penetrates the side wall of the fixing plate 6. The pin at its end forms a gap-fitting insertion structure with the slot opened in the side wall of the fixing block 9. The opposite sides (i.e., inner sides) of the two fixing blocks 9 are fixed to the upper and lower end faces of the two molds 10 respectively through positioning pins and bolts, so that the two molds 10 are distributed vertically and vertically for stamping.
[0027] The C-type connecting frame 1 provides a framework support for the overall structure. The cylinder 2 directly drives the upper mounting plate 3 to achieve vertical displacement, controlling the mold closing gap of the mold 10 and improving stamping accuracy. The linkage design of the drive component 7 and the disassembly and assembly component 8 can quickly complete the insertion or separation of the pin and the fixing block 9 through mechanical transmission, shortening the mold change time. The insertion and cooperation between the disassembly and assembly component 8 and the fixing block 9 ensures the positioning accuracy of the mold 10 during operation. When stamping automotive parts, the mold 10 used can not only be disassembled quickly and conveniently, but also has a high degree of stability during use. This solves the problem that the low stability of the stamping mold is easily caused by the snap-fit connection method, and the insufficient stability of the stamping mold when using the bidirectional screw clamping method.
[0028] In an embodiment of this utility model, the disassembly and assembly component 8 includes a rotating ring block 801, a rotating inclined block 802, a sliding groove 803, a sliding column 804, a connecting block 805, a clamping block 806, and an insert block 807. The bottom of the rotating ring block 801 is rotatably connected to the fixed plate 6, and the top of the rotating ring block 801 is connected to the drive assembly 7. The rotating inclined block 802 is fixedly connected to the surface of the rotating ring block 801. The fixed plate 6 has four sliding grooves 803 along the circumference of the rotating ring block 801. A sliding column 804 is slidably connected to the inner cavity of each sliding groove 803. The upper surface of the sliding column 804 is connected to the rotating inclined block 802 and is used to drive the sliding column 804 to move along the sliding groove 803. The bottom of the sliding column 804 is provided with a connecting block 805, the bottom of the connecting block 805 is provided with a clamping block 806, the bottom of the clamping block 806 is folded back to provide an inserting block 807, and the inserting block 807 is inserted into the fixing block 9.
[0029] Slots 901 are provided around the four sides of the fixing block 9, and the slots 901 are inserted into the plug block 807.
[0030] Specifically, the rotating ring block 801 is annular in shape, with its bottom rotatably connected to the center of the fixed plate 6 via a thrust bearing, and its top connected to the drive assembly 7 via a keyway. Four rotating inclined blocks 802 are uniformly fixed to the outer circumferential surface of the rotating ring block 801, and the side of each rotating inclined block 802 is an inclined circular surface (i.e., elongated). The surface of the fixed plate 6 has four sliding grooves 803 along the circumferential direction of the rotating ring block 801. The sliding grooves 803 extend radially, and a sliding post 804 is slidably fitted into the inner cavity of each sliding groove 803. The upper top of the sliding post 804 contacts the inclined slope of the rotating inclined block 802. The bottom of the sliding column 804 is fixed to the top of the connecting block 805 by bolts. The bottom of the connecting block 805 is fixed to the top of the clamping block 806. The bottom of the clamping block 806 is folded inward to form an L-shaped insert 807. Correspondingly, slots 901 matching the insert 807 are provided on all four sides of the fixing block 9. The horizontal section of the insert 807 can be inserted into the slot 901 in a direction perpendicular to the side wall of the fixing block 9 to form a multi-directional insertion fit.
[0031] By rotating the ring block 801 synchronously with the four rotating inclined blocks 802, the inclined plane transmission drives the four sliding pillars 804 to move radially synchronously along the sliding groove 803, so that the four insert blocks 807 can be inserted or separated from the slots 901 of the fixed block 9 at the same time, ensuring the high efficiency of the mold changing operation; the insert blocks 807 form a ring-shaped fixation of the fixed block 9 from four directions, which improves the positioning accuracy and impact resistance stability of the mold 10 during the stamping process.
[0032] In an embodiment of this utility model, the drive assembly 7 includes a connecting column 701, a gear 702, a rack 703, a push plate 704, and a push cylinder 705; One end of the connecting column 701 is connected to the rotating ring block 801, and the other end of the connecting column 701 passes through the connecting plate 5 to connect to the gear 702. The teeth of the gear 702 mesh with the rack 703. One side of the rack 703 is fixedly connected to the push plate 704. The push plate 704 is connected to the output end of the push cylinder 705. The push cylinder 705 is set on the surface of the connecting plate 5.
[0033] Specifically, the connecting column 701 is cylindrical, with its bottom end fixed to the center of the top surface of the rotating ring block 801 via a flat key, and its top end vertically upward through a through hole in the middle of the connecting plate 5, and circumferentially fixed to the inner hole of the gear 702 via a spline engagement; the gear 702 is horizontally arranged on the surface of the connecting plate 5, and its teeth mesh with the horizontally placed rack 703; the bottom of the rack 703 is slidably connected to a slide rail preset on the surface of the connecting plate 5 via a slider, and a push plate 704 is vertically fixed to one end of the rack 703, and the side of the push plate 704 away from the rack 703 is hinged to the output end of the push cylinder 705; the cylinder body of the push cylinder 705 is horizontally fixed to the surface of the connecting plate 5 via a frame, and its axis is parallel to the length direction of the rack 703.
[0034] The meshing transmission of gear 702 and rack 703 can stably convert the linear driving force of the cylinder 705 into the rotational motion of the connecting column 701. The transmission efficiency is high and the reversal is precise. By controlling the cylinder stroke to adjust the rotation angle of the rotating ring block 801, the disassembly and assembly component 8 can be disassembled from the slot 901 of the fixing block 9. At the same time, the meshing of gear 702 and rack 703 has a certain degree of self-locking, which can prevent the rotating ring block 801 from rotating accidentally due to vibration during the stamping process, thus ensuring the installation stability of the mold 10.
[0035] In an embodiment of this utility model, a limiting groove 11 is formed on the lower surface of the sliding column 804, and a limiting plate 12 is slidably connected to the inner cavity of the limiting groove 11.
[0036] A limiting block 13 is fixedly connected to the bottom of the connecting block 805, and a hollow groove 14 is provided on the top of the clamping block 806. The surface of the limiting block 13 is slidably connected to the inner cavity of the hollow groove 14.
[0037] Both the clamping block 806 and the connecting block 805 have concentric threaded holes 15 on one side, and the inner cavities of the multiple threaded holes 15 are threaded with fastening bolts.
[0038] One end of the sliding column 804 is fixedly connected to a limiting ring block 808, and the diameter of the limiting ring block 808 is larger than the diameter of the sliding column 804.
[0039] Specifically, a limiting groove 11 is formed on the lower surface of the sliding column 804 along its transverse direction, and a sheet-like limiting plate 12 is slidably embedded in the inner cavity of the limiting groove 11; a trapezoidal limiting block 13 is vertically fixed to the bottom center of the connecting block 805, and a hollow groove 14 matching the limiting block 13 is correspondingly formed on the top of the clamping block 806 to form a sliding guide; at least four threaded holes 15 are concentrically formed in the vertical direction on the side wall of the clamping block 806 and the connecting block 805, and fastening bolts are threaded into the inner cavity of each threaded hole 15, and the two are rigidly fixed by tightening the bolts; a limiting ring block 808 is coaxially fixed to the end of the sliding column 804 away from the rotating ring block 801 (i.e., the outer end).
[0040] Based on the above embodiments, the specific working process of the automotive parts stamping device provided by this utility model is as follows: When in use, the operator can start cylinder 2. When cylinder 2 is in operation, it will drive the mounting plate 3 located on the upper side to move down, and through the two molds 10 approaching and cooperating with each other, the stamping of automotive parts can be realized.
[0041] When it is necessary to replace the mold 10, the push cylinder 705 is activated. When the push cylinder 705 is operating, it can drive the rack 703 to move through the push plate 704. By utilizing the meshing between the rack 703 and the gear 702, the connecting column 701 and the rotating ring block 801 are driven to rotate. During the rotation of the rotating ring block 801, it can drive the rotating inclined block 802 to rotate. The rotating inclined block 802 pushes the sliding column 804, thereby causing the insert block 807 to move out of the slot 901. As a result, the clamping block 806 no longer clamps the fixing block 9, and the insert block 807 will no longer be inserted into the slot 901, thus realizing the disassembly of the mold 10.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A stamping device for automotive parts, characterized in that, include: Connecting frame (1), cylinder (2), mounting plate (3), mounting rod (4), connecting plate (5), fixing plate (6), drive assembly (7), disassembly assembly (8), fixing block (9) and mold (10); The connecting frame (1) is C-shaped. Two mounting plates (3) are provided inside the connecting frame (1). One mounting plate (3) is fixed to the bottom surface of the inner cavity of the connecting frame (1), and the other mounting plate (3) is connected to the output end of the cylinder (2) through the top surface of the connecting frame (1). The mounting rod (4), the connecting plate (5) and the fixing plate (6) are arranged sequentially on the opposite sides of the two mounting plates (3). The driving assembly (7) is arranged between the mounting plate (3) and the connecting plate (5). The driving assembly (7) is connected to the disassembly assembly (8) in a transmission manner. The disassembly assembly (8) is inserted into the fixing block (9). A mold (10) is arranged on the opposite side of the two fixing blocks (9).
2. The automotive parts stamping device according to claim 1, characterized in that, The disassembly and assembly assembly (8) includes a rotating ring block (801), a rotating inclined block (802), a sliding groove (803), a sliding column (804), a connecting block (805), a clamping block (806), and an insert block (807); The bottom of the rotating ring block (801) is rotatably connected to the fixed plate (6), and the top of the rotating ring block (801) is drively connected to the driving assembly (7). The rotating inclined block (802) is fixedly attached to the surface of the rotating ring block (801). The fixed plate (6) has four grooves (803) along the circumference of the rotating ring block (801). Each groove (803) has a sliding column (804) slidably connected to its inner cavity. The upper surface of the sliding column (804) is connected to the rotating inclined block (802) to drive the sliding column (804) to move along the groove (803). The bottom of the sliding column (804) is provided with the connecting block (805), the bottom of the connecting block (805) is provided with the clamping block (806), the bottom of the clamping block (806) is folded back with the inserting block (807), and the inserting block (807) is inserted into the fixing block (9).
3. The stamping device for automotive parts according to claim 2, characterized in that, The fixing block (9) has slots (901) on all four sides, and the slots (901) are inserted into the plug block (807).
4. The automotive parts stamping device according to claim 2, characterized in that, The drive assembly (7) includes a connecting column (701), a gear (702), a rack (703), a push plate (704), and a push cylinder (705). One end of the connecting column (701) is connected to the rotating ring block (801), and the other end of the connecting column (701) passes through the connecting plate (5) and connects to the gear (702). The teeth of the gear (702) mesh with the rack (703). One side of the rack (703) is fixed to the push plate (704). The push plate (704) is connected to the output end of the push cylinder (705). The push cylinder (705) is disposed on the surface of the connecting plate (5).
5. The automotive parts stamping device according to claim 2, characterized in that, The lower surface of the sliding column (804) begins to have a limiting groove (11), and the inner cavity of the limiting groove (11) is slidably connected to a limiting plate (12).
6. The automotive parts stamping apparatus according to claim 2, characterized in that, The bottom of the connecting block (805) is fixedly connected to a limiting block (13), and the top of the clamping block (806) is provided with a hollow groove (14). The surface of the limiting block (13) is slidably connected to the inner cavity of the hollow groove (14).
7. The automotive parts stamping apparatus according to claim 6, characterized in that, Both the clamping block (806) and the connecting block (805) have concentric threaded holes (15) on one side, and the inner cavities of the multiple threaded holes (15) are threaded with fastening bolts.
8. The stamping apparatus for automotive parts according to claim 2, characterized in that, One end of the slide (804) is fixedly connected to a limiting ring block (808), the diameter of which is larger than the diameter of the slide (804).