Rotary pressing cylinder capable of rotating bidirectionally
By designing left-hand and right-hand guide grooves on the guide column of the rotary pressing cylinder and achieving bidirectional rotary pressing through the reversing channel, the problem of unidirectional rotary pressing of the existing rotary pressing cylinder is solved, improving adaptability and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 董林
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-12
AI Technical Summary
Existing rotary pressing cylinders can only rotate and press down in one direction, resulting in poor adaptability, requiring advance selection, complicated production, and high inventory pressure.
Design a bidirectional rotating downward cylinder, which uses a guide post with a left-hand guide groove and a right-hand guide groove formed on it, and realizes bidirectional rotating downward pressing by switching the guide pin between the left-hand guide groove and the right-hand guide groove through a reversing channel.
It achieves bidirectional adaptability of the rotary pressing cylinder, reduces production model and inventory pressure, and allows for flexible switching between different application scenarios.
Smart Images
Figure CN224228993U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rotating down pressure cylinder technical field especially relates to a kind of rotating down pressure cylinder of two-way rotation. BACKGROUND
[0002] Rotating down pressure cylinder is a kind of execution element combined with rotating action and linear down pressure action, is widely applied to clamping, pressing, assembly etc.
[0003] The existing rotating down pressure cylinder can only rotate down in single direction, that is, the existing rotating down pressure cylinder is divided into left-hand rotating type and right-hand rotating type, left-hand rotating type rotating down pressure cylinder can only rotate down to left, right-hand rotating type rotating down pressure cylinder can only rotate down to right, since left-hand rotating type rotating down pressure cylinder and right-hand rotating type rotating down pressure cylinder cannot be used instead, so the existing rotating down pressure cylinder has the following limitations: 1, for application party, there is poor adaptability problem, needs to be selected in advance according to equipment design demand, that is, needs to purchase corresponding number of left-hand rotating type rotating down pressure cylinder and right-hand rotating type rotating down pressure cylinder in advance according to equipment design demand, when equipment layout changes, the number of one type of rotating down pressure cylinder can be excessive, and the number of another type of rotating down pressure cylinder can be insufficient, not only needs to be purchased again for the type of rotating down pressure cylinder with insufficient number, but also can cause waste of the type of rotating down pressure cylinder with excessive number;2, for production party, two types of rotating down pressure cylinder need to be produced and stocked respectively, not only production is more troublesome, but also inventory pressure is larger. UTILITY MODEL CONTENT
[0004] The utility model aims at the deficiencies of prior art and provides a kind of rotating down pressure cylinder of two-way rotation, which can rotate down to left and right, has strong adaptability, can flexibly switch the direction of rotating down according to specific application scene, does not need to be selected in advance, is more conducive to equipment design, only needs to produce one type, can facilitate production and reduce inventory pressure.
[0005] To achieve the above object, the utility model adopts the technical scheme of a kind of rotating down pressure cylinder of two-way rotation, including cylinder body, guide column being arranged in cylinder body, piston block assembly, characterized by: the guide column is formed with left-hand rotating guide groove and right-hand rotating guide groove, and the piston block assembly includes guide pin for cooperating with left-hand rotating guide groove or right-hand rotating guide groove, and the guide column is further formed with switching channel for switching guide pin between left-hand rotating guide groove and right-hand rotating guide groove;When guide pin is located in left-hand rotating guide groove, guide column guides piston block assembly to rotate down and move to left;When guide pin is located in right-hand rotating guide groove, guide column guides piston block assembly to rotate down and move to right.
[0006] Further improvement of the above-mentioned solution is that the left-hand guide groove comprises a left vertical downward pressing groove segment in the shape of a vertical strip groove and a left spiral downward pressing groove segment in the shape of a spiral groove, the top of the left vertical downward pressing groove segment is in communication with the bottom of the left spiral downward pressing groove segment, when the guide pin is located in the left vertical downward pressing groove segment, the guide column guides the piston pressing block assembly to move vertically downward, when the guide pin is located in the left spiral downward pressing groove segment, the guide column guides the piston pressing block assembly to move left spirally downward; the right-hand guide groove comprises a right vertical downward pressing groove segment in the shape of a vertical strip groove and a right spiral downward pressing groove segment in the shape of a spiral groove, the top of the right vertical downward pressing groove segment is in communication with the bottom of the right spiral downward pressing groove segment, when the guide pin is located in the right vertical downward pressing groove segment, the guide column guides the piston pressing block assembly to move vertically downward, when the guide pin is located in the right spiral downward pressing groove segment, the guide column guides the piston pressing block assembly to move right spirally downward.
[0007] Further improvement of the above-mentioned solution is that the left spiral downward pressing groove segment and the right spiral downward pressing groove segment are spirally arranged along the circumferential direction of the guide column.
[0008] Further improvement of the above-mentioned solution is that the left spiral downward pressing groove segment protrudes below the right spiral downward pressing groove segment along the circumferential direction of the guide column.
[0009] Further improvement of the above-mentioned solution is that the utility model also comprises a height limiting assembly for preventing the guide pin from sliding upward excessively in the left spiral downward pressing groove segment.
[0010] Further improvement of the above-mentioned solution is that the cylinder body is formed with a piston cavity, the piston pressing block assembly comprises a piston seat arranged on the guide column, and the height limiting assembly comprises a fixed height limiting block arranged at the top of the piston cavity and a movable height limiting block arranged at the top of the piston seat; when the guide pin is located at the top of the right spiral downward pressing groove segment, the fixed height limiting block and the movable height limiting block are arranged in a staggered manner; when the guide pin is located at the top of the left spiral downward pressing groove segment, the bottom of the fixed height limiting block abuts against the top of the movable height limiting block.
[0011] Further improvement of the above scheme is that the cylinder body is formed with a piston cavity, the piston block assembly comprises a piston seat sleeved on the guide column, the height limiting assembly comprises a fixed outer ring height limiting block arranged at the top of the piston cavity, a fixed inner ring height limiting block arranged at the top of the piston cavity, a movable outer ring height limiting block arranged at the top of the piston seat, and a movable inner ring height limiting block arranged at the top of the piston seat, the fixed outer ring height limiting block is arranged in mirror symmetry with the fixed inner ring height limiting block in a concentric circle shape, and the movable outer ring height limiting block is arranged in mirror symmetry with the movable inner ring height limiting block in a concentric circle shape; when the guide pin is located at the top of the right spiral pressing groove section, the fixed outer ring height limiting block and the movable outer ring height limiting block are arranged in mirror symmetry, and the fixed inner ring height limiting block and the movable inner ring height limiting block are arranged in mirror symmetry; when the guide pin is located at the top of the left spiral pressing groove section, the bottom of the fixed outer ring height limiting block abuts against the top of the movable outer ring height limiting block, and the bottom of the fixed inner ring height limiting block abuts against the top of the movable inner ring height limiting block.
[0012] Further improvement of the above scheme is that the cylinder body is formed with a piston cavity, the cylinder body is formed with a piston cavity, the piston cavity comprises a vertical pressing cavity and a spiral pressing cavity arranged at the top of the vertical pressing cavity, the left vertical pressing groove section and the right vertical pressing groove section are arranged in the vertical pressing cavity, and the left spiral pressing groove section and the right spiral pressing groove section are arranged in the spiral pressing cavity.
[0013] Further improvement of the above scheme is that the reversing channel is provided with an anti-misoperation reversing assembly, and the anti-misoperation reversing assembly comprises a telescopic stopper slidably arranged at the position of the reversing channel and a compression spring clamped between the telescopic stopper and the guide column.
[0014] Further improvement of the above scheme is that the left-hand guide groove and the right-hand guide groove are at least two, the left-hand guide grooves are arranged in an array along the circumferential direction of the guide column, the right-hand guide grooves are arranged in an array along the circumferential direction of the guide column; the piston block assembly comprises guide pins equal in number to the left-hand guide grooves or the right-hand guide grooves, and each guide pin is located in each left-hand guide groove or each right-hand guide groove at the same time.
[0015] The utility model has the advantages that the utility model provides a rotatable downward pressing cylinder capable of rotating in two directions, which comprises a cylinder body, a guide column arranged in the cylinder body and a piston block assembly, characterized in that the guide column is formed with a left-hand guide groove and a right-hand guide groove, the piston block assembly comprises guide pins used for cooperating with the left-hand guide groove or the right-hand guide groove, and the guide column is further formed with a reversing channel used for switching the guide pins between the left-hand guide groove and the right-hand guide groove; when the guide pins are located in the left-hand guide groove, the guide column guides the piston block assembly to rotate and move downward to the left; and when the guide pins are located in the right-hand guide groove, the guide column guides the piston block assembly to rotate and move downward to the right.
[0016] The utility model discloses a guide column is equipped with left rotation guide groove for guiding piston pressure block subassembly to move to the left rotation and down pressure right rotation guide groove for guiding piston pressure block subassembly to move to the right rotation and down pressure, and the direction of rotation and down pressure can be switched by switching the guide pin between left rotation guide groove and right rotation guide groove. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structure schematic diagram of the utility model.
[0018] Figure 2 It is the structure schematic diagram of the utility model.
[0019] Figure 3 It is the structure schematic diagram of the utility model height limiting component.
[0020] Figure 4 It is the structure schematic diagram of the utility model guide column.
[0021] Figure 5 It is the structure schematic diagram of the utility model. Figure 4 It is the structure schematic diagram of the utility model.
[0022] BRIEF DESCRIPTION OF DRAWINGS Cylinder body 1, piston cavity 11, vertical down pressure cavity 111, spiral down pressure cavity 112, upper drive port 12, lower drive port 13, guide column 2, left rotation guide groove 21, left vertical down pressure groove section 211, left spiral down pressure groove section 212, right rotation guide groove 22, right vertical down pressure groove section 221, right spiral down pressure groove section 222, reversing passage 23, piston pressure block subassembly 3, guide pin 31, piston seat 32, sealing ring 33, piston rod 34, down pressure block 35, height limiting component 4, fixed height limiting block 41, movable height limiting block 42, fixed outer ring height limiting block 43, fixed inner ring height limiting block 44, movable outer ring height limiting block 45, movable inner ring height limiting block 46, mistaken reversing prevention component 5, telescopic stop block 51, compression spring 52. Detailed implementation method:
[0023] The present invention will be further described below with reference to the accompanying drawings, such as... Figures 1-5 As shown, this utility model includes a cylinder body 1, a guide post 2 disposed in the cylinder body 1, and a piston pressing block assembly 3. The guide post 2 is formed with a left-hand guide groove 21 and a right-hand guide groove 22. The piston pressing block assembly 3 includes a guide pin 31 for cooperating with the left-hand guide groove 21 or the right-hand guide groove 22. The guide post 2 is also formed with a reversing channel 23 for the guide pin 31 to switch between the left-hand guide groove 21 and the right-hand guide groove 22. The left-hand guide groove 21 and the right-hand guide groove 22 are connected through the reversing channel 23. When the guide pin 31 is located in the left-hand guide groove 21, the guide post 2 guides the piston pressing block assembly 3 to rotate and press down to the left; when the guide pin 31 is located in the right-hand guide groove 22, the guide post 2 guides the piston pressing block assembly 3 to rotate and press down to the right; the guide post 2 of this utility model is simultaneously provided with a left-hand guide groove 21 for guiding the piston pressing block assembly 3 to rotate and press down to the left and a right-hand guide groove 22 for guiding the piston pressing block assembly 3 to rotate and press down to the right. By positioning the guide pin 31 in the left-hand guide groove 21 and the right-hand guide groove 22... The direction of rotation and downward pressing can be switched by switching between the guide grooves 22. When leftward rotation and downward pressing are required, the guide pin 31 is moved into the leftward guide groove 21. As the piston pressing block assembly 3 is pushed up and pressed down, the guide pin 31 moves along the leftward guide groove 21, and correspondingly, the piston pressing block assembly 3 rotates downward to the left and rotates upward to the right to reset. When rightward rotation and downward pressing are required, the guide pin 31 is moved from the leftward guide groove 21 through the reversing channel 23 and into the rightward guide groove 22. As the piston pressing block assembly is pushed up and pressed down, the piston pressing block assembly 3 rotates downward to the left and upward to reset. 3. When the piston is pushed up and pressed down, the guide pin 31 moves along the right-hand guide groove 22. Correspondingly, the piston pressing block assembly 3 rotates to the right to press down and rotates to the left to rise and reset. Compared with the existing rotary pressing cylinder, which can only rotate and press down in one direction, this utility model can rotate and press down in both directions, which is highly adaptable and can flexibly switch the direction of rotation and pressing down according to specific application scenarios. There is no need to select the model in advance, which is more conducive to equipment design. Only one model needs to be produced, which can facilitate production and reduce inventory pressure.
[0024] The left-hand guide slot 21 comprises a left-hand vertical down-pressing slot section 211 in the shape of a vertical strip slot, a left-hand helical down-pressing slot section 212 in the shape of a helical slot, and the top of the left-hand vertical down-pressing slot section 211 is in communication with the bottom of the left-hand helical down-pressing slot section 212; when the guide pin 31 is located in the left-hand vertical down-pressing slot section 211, the guide column 2 guides the piston ram assembly 3 to move vertically downward; when the guide pin 31 is located in the left-hand helical down-pressing slot section 212, the guide column 2 guides the piston ram assembly 3 to move leftward helically downward; the right-hand guide slot 22 comprises a right-hand vertical down-pressing slot section 221 in the shape of a vertical strip slot, a right-hand helical down-pressing slot section 222 in the shape of a helical slot, and the top of the right-hand vertical down-pressing slot section 221 is in communication with the bottom of the right-hand helical down-pressing slot section 222; when the guide pin 31 is located in the right-hand vertical down-pressing slot section 221, the guide column 2 guides the piston ram assembly 3 to move vertically downward; when the guide pin 31 is located in the right-hand helical down-pressing slot section 222, the guide column 2 guides the piston ram assembly 3 to move rightward helically downward; when the guide pin 31 is located in the left-hand guide slot 21 and the piston ram assembly 3 is pressed downward by an external power mechanism, i.e. air pressure or oil pressure, the guide pin 31 first moves downward helically along the left-hand helical down-pressing slot section 212, and correspondingly, the piston ram assembly 3 rotates leftward and downward; then the guide pin 31 moves vertically downward along the left-hand vertical down-pressing slot section 211, and correspondingly, the piston ram assembly 3 moves vertically downward; when the guide pin 31 is located in the left-hand guide slot 21 and is lifted upward by an external power mechanism, i.e. air pressure or oil pressure, the guide pin 3 first moves vertically upward along the left-hand vertical down-pressing slot section 211, and correspondingly, the
[0025] The left helical down-pressing groove section 212 and the right helical down-pressing groove section 222 are helical along the circumferential direction of the guide column 2 respectively; compared with the case that the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222 are located at the same height and are arranged separately, the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222 as a whole need to occupy a larger width position on the side of the guide column 2, and the diameter of the guide column 2 needs to be larger to meet the separate arrangement of the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222, especially when the left helical guide groove 21 and the right helical guide groove 22 are two or even more, the diameter of the guide column 2 needs to be larger; the left helical down-pressing groove section 212 of the utility model protrudes below the right helical down-pressing groove section 222 along the circumferential direction of the guide column 2, and through the structure design, the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222 can be separated and not interfere with each other while occupying a smaller width position on the side of the guide column 2, and the diameter of the guide column 2 can be smaller, so that the overall structure layout can be more compact and small; of course, in other embodiments, the right helical down-pressing groove section 222 can also be arranged below the left helical down-pressing groove section 212 along the circumferential direction of the guide column 2 according to the actual production needs, that is, the left helical down-pressing groove section 212 is arranged above and the right helical down-pressing groove section 222 is arranged below to realize the up-down interval arrangement of the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222; the left helical down-pressing groove section 212 and the right helical down-pressing groove section 222 of the utility model are designed as one left and one right and one high and one low, and viewed from another angle, they are designed as one front and one back and one high and one low.
[0026] Since the height of the left helical down-pressing groove section 212 is lower than the height of the right helical down-pressing groove section 222, that is, when the guide pin 31 reaches the top of the left helical down-pressing groove section 212, there is still a distance between the top of the left helical down-pressing groove section 212 and the top of the piston cavity 11, and the guide pin 31 will upwardly punch the top of the left helical down-pressing groove section 212 and easily damage the left helical down-pressing groove section 212; the utility model further comprises a height limiting assembly 4 for preventing the guide pin 31 from excessively sliding upwardly in the left helical down-pressing groove section 212, and the height difference between the top of the left helical down-pressing groove section 212 and the top of the right helical down-pressing groove section 222 is compensated by the height limiting assembly 4, that is, when the guide pin 31 reaches the top of the left helical down-pressing groove section 212, the height limiting assembly 4 prevents the guide pin 31 from continuously upwardly punching the top of the left helical down-pressing groove section 212, so that the left helical down-pressing groove section 212 can be prevented from being damaged by the guide pin 31, and the service life of the whole can be better guaranteed.
[0027] The cylinder body 1 is formed with a piston cavity 11, the piston pressing block assembly 3 comprises a piston seat 32 sleeved on the guide column 2, the height limiting assembly 4 comprises a fixed height limiting block 41 arranged at the top of the piston cavity 11 and a movable height limiting block 42 arranged at the top of the piston seat 32; when the guide pin 31 is located at the top of the right spiral downward pressing groove section 222, the fixed height limiting block 41 and the movable height limiting block 42 are arranged in a staggered mode; when the guide pin 31 is located at the top of the left spiral downward pressing groove section 212, the bottom of the fixed height limiting block 41 is in abutment with the top of the movable height limiting block 42; the piston seat 32 is limited by the abutment of the fixed height limiting block 41 and the movable height limiting block 42, so as to prevent the piston seat 32 from continuing to move upward, that is, to prevent the guide pin 31 from continuing to move upward, thereby preventing the guide pin 31 from being upwardly pushed to the top of the left spiral downward pressing groove section 212.
[0028] The height limiting assembly 4 of the utility model preferably comprises a fixed outer ring height limiting block 43 arranged at the top of the piston cavity 11, a fixed inner ring height limiting block 44 arranged at the top of the piston cavity 11, a movable outer ring height limiting block 45 arranged at the top of the piston seat 32 and a movable inner ring height limiting block 46 arranged at the top of the piston seat 32, the fixed outer ring height limiting block 43 is arranged in a mirror image symmetry with the fixed inner ring height limiting block 44 in a concentric circle mode, and the movable outer ring height limiting block 45 is arranged in a mirror image symmetry with the movable inner ring height limiting block 46 in a concentric circle mode; when the guide pin 31 is located at the top of the right spiral downward pressing groove section 222, the fixed outer ring height limiting block 43 and the movable outer ring height limiting block 45 are arranged in a mirror image symmetry, and the fixed inner ring height limiting block 44 and the movable inner ring height limiting block 46 are arranged in a mirror image symmetry; when the guide pin 31 is located at the top of the left spiral downward pressing groove section 212, the bottom of the fixed outer ring height limiting block 43 is in abutment with the top of the movable outer ring height limiting block 45, and the bottom of the fixed inner ring height limiting block 44 is in abutment with the top of the movable inner ring height limiting block 46; compared with limiting the height by abutting against one side of the piston seat 32, the fixed outer ring height limiting block 43, the fixed inner ring height limiting block 44, the movable outer ring height limiting block 45 and the movable inner ring height limiting block 46 are matched, so that the conditional height limiting can be achieved, that is, the height is limited only when the guide pin 31 is located at the top of the left spiral downward pressing groove section 212, and the height is not limited when the guide pin 31 is located at the top of the right spiral downward pressing groove section 222, and when the height is limited, the two sides of the piston seat 32 are stressed, the overall stress is more uniform, and the height limiting can be more stably achieved.
[0029] The cylinder body 1 is formed with a piston cavity 11, the piston cavity 11 comprises a vertical pressing cavity 111, a spiral pressing cavity 112 arranged at the top of the vertical pressing cavity 111, a left vertical pressing groove section 211 and a right vertical pressing groove section 221 arranged in the vertical pressing cavity 111 respectively, a left spiral pressing groove section 212 and a right spiral pressing groove section 222 arranged in the spiral pressing cavity 112 respectively, and the inner diameter of the spiral pressing cavity 112 is larger than that of the vertical pressing cavity 111; compared with the prior art, the piston cavity 11 has only a single inner diameter size, if the inner diameter size is too large, the sealing ring 33 on the piston seat 32 cannot be in close contact with the piston cavity 11, the pressing force is affected, that is, the pressing block 35 cannot easily clamp the workpiece to be clamped, if the inner diameter size is too small, the sealing ring 33 on the piston seat 32 is in close contact with the piston cavity 11, the sealing ring 33 on the piston seat 32 is too tightly contacted with the piston cavity 11, and the rotation of the piston seat 32 is not facilitated; the piston cavity 11 is divided into the spiral pressing cavity 112 with a large inner diameter and the vertical pressing cavity 111 with a small inner diameter, so that the actual rotation pressing and vertical pressing can be better realized, the sealing ring 33 on the piston seat 32 can be in small friction with the spiral pressing cavity 112 with a large inner diameter, so that the rotation pressing can be more smoothly realized, and the sealing ring 33 on the piston seat 32 can be in close contact with the vertical pressing cavity 111 with a small inner diameter, so that the pressing force can be better ensured to be large enough, so that clamping, pressing, assembling and the like can be better realized, and the piston cavity 11 has a sectional structure, so that the actual application can be better met, the rotation pressing can be smoothly realized, and the pressing force can be ensured to be large enough.
[0030] The guide pin 31 only needs to be slightly pushed, and the guide pin 31 can be switched between the left rotation guide groove 21 and the right rotation guide groove 22 through the switching channel 23, and misoperation, that is, mis-switching, is very easy to occur; the switching channel 23 is provided with the anti-mis-switching assembly 5, the anti-mis-switching assembly 5 comprises the telescopic stopper 51 which is slidably arranged at the position of the switching channel 23 and the compression spring 52 which is clamped between the telescopic stopper 51 and the guide column 2; when the guide pin 31 is switched between the left rotation guide groove 21 and the right rotation guide groove 22, the guide pin 31 needs to extrude one side of the telescopic stopper 51 and extrude the telescopic stopper 51 to compress the compression spring 52, and after the telescopic stopper 51 is extruded backward, the guide pin 31 can smoothly pass through the switching channel 23 and realize switching, that is, compared with the prior art, the switching can be realized without force, and after the anti-mis-switching assembly 5 is arranged, a certain force is needed to realize the switching of the guide pin 31 between the left rotation guide groove 21 and the right rotation guide groove 22, so that misoperation can be better avoided.
[0031] The piston pressing block assembly 3 comprises a piston seat 32 sleeved on the guide column 2, a sealing ring 33 sleeved on the piston seat 32, a piston rod 34 arranged on the piston seat 32, a lower pressing block 35 arranged on the piston rod 34, and a guide pin 31 arranged on the piston seat 32; since the piston seat 32, the piston rod 34, the lower pressing block 35 and the guide pin 31 are connected as a whole, the moving track of the guide pin 31 is the moving track of the whole piston pressing block assembly 3, that is, the moving track of the piston seat 32, the moving track of the piston rod 34 and the moving track of the lower pressing block 35 are consistent with the guide pin 31; when it is needed to switch the guide pin 31 between the left-rotation guide groove 21 and the right-rotation guide groove 22, the lower pressing block 35 or the piston rod 34 is only needed to be switched to drive the guide pin 31 to be switched synchronously, for example, when it is needed to switch the guide pin 31 from the left-rotation guide groove 21 to the right-rotation guide groove 22, the piston seat 32 is first pressed downward to make the guide pin 31 located on one side of the switching channel 23, then the lower pressing block 35 is switched to the left, the guide pin 31 rotates to the left along with the lower pressing block 35 to pass through the switching channel 23 and is switched to the right-rotation guide groove 22, and the switching is completed; the cylinder body 1 is formed with a piston cavity 11, an upper driving port 12 communicated with the top of the piston cavity 11 and a lower driving port 13 communicated with the bottom of the piston cavity 11, the upper driving port 12 and the lower driving port 13 are connected with a pneumatic or hydraulic source respectively to realize the extension and retraction of the piston rod 34.
[0032] Compared with the structure that only one left-rotation guide groove 21 and one right-rotation guide groove 22 are arranged, the left-rotation guide grooves 21 and the right-rotation guide grooves 22 are at least two respectively, the left-rotation guide grooves 21 are arranged in the circumferential direction of the guide column 2, the right-rotation guide grooves 22 are arranged in the circumferential direction of the guide column 2, the piston pressing block assembly 3 comprises guide pins 31 same in number with the left-rotation guide grooves 21 or the right-rotation guide grooves 22, each guide pin 31 is located in each left-rotation guide groove 21 or each right-rotation guide groove 22 simultaneously, the guide movement of the piston pressing block assembly 3 can be realized more stably, and the rotation and pressing can be realized better.
[0033] Working principle:
[0034] When the left rotation and downward pressing needs to be realized, the guide pin 31 is pushed into the left rotation guide groove 21, and along with the upward pressing and downward pressing of the piston pressing block assembly 3, the guide pin 31 moves along the left rotation guide groove 21, and correspondingly, the piston pressing block assembly 3 rotates left and downward and rotates right and upward to reset; when the right rotation and downward pressing needs to be realized, the guide pin 31 is pushed from the left rotation guide groove 21 through the reversing channel 23 and into the right rotation guide groove 22, and along with the upward pressing and downward pressing of the piston pressing block assembly 3, the guide pin 31 moves along the right rotation guide groove 22, and correspondingly, the piston pressing block assembly 3 rotates right and downward and rotates left and upward to reset; compared with the existing rotary downward pressing cylinder which can only rotate downward in a single direction, the utility model can rotate downward to the left and to the right, has strong adaptability, can flexibly switch the direction of rotary downward pressing according to specific application scenarios, does not need to be selected in advance, is more beneficial to equipment design, only needs to produce one type, can facilitate production and reduce inventory pressure.
[0035] Wherein, the up and down, left and right, top and bottom of the above are consistent with the up and down, left and right, top and bottom in the drawings, and the left rotation and right rotation are determined from the top view angle of the drawings, that is, the clockwise direction is right rotation, and the counterclockwise direction is left rotation.
[0036] Of course, the above is only a preferred embodiment of the utility model, so equivalent changes or modifications made according to the structure, features and principles of the utility model patent application range are included in the utility model patent application range.
Claims
1. A bidirectional rotatable rotary pressing cylinder, comprising a cylinder body (1), a guide post (2) disposed in the cylinder body (1), and a piston pressing block assembly (3), characterized in that: The guide post (2) is formed with a left-hand guide groove (21) and a right-hand guide groove (22). The piston pressing block assembly (3) includes a guide pin (31) for cooperating with the left-hand guide groove (21) or the right-hand guide groove (22). The guide post (2) is also formed with a reversing channel (23) for the guide pin (31) to switch between the left-hand guide groove (21) and the right-hand guide groove (22). When the guide pin (31) is in the left-hand guide groove (21), the guide post (2) guides the piston pressing block assembly (3) to rotate and press down to the left. When the guide pin (31) is in the right-hand guide groove (22), the guide post (2) guides the piston pressing block assembly (3) to rotate and press down to the right.
2. The bidirectional rotatable rotary pressing cylinder according to claim 1, characterized in that: The left-hand guide groove (21) includes a left vertical downward pressing groove section (211) in the shape of a vertical strip groove and a left spiral downward pressing groove section (212) in the shape of a spiral groove. The top of the left vertical downward pressing groove section (211) is connected to the bottom of the left spiral downward pressing groove section (212). When the guide pin (31) is located in the left vertical downward pressing groove section (211), the guide post (2) guides the piston pressing block assembly (3) to move vertically downward. When the guide pin (31) is located in the left spiral downward pressing groove section (212), the guide post (2) guides the piston pressing block assembly (3) to move left spiral downward. The right-hand guide groove (22) includes a right vertical pressing groove section (221) in the shape of a vertical strip groove and a right spiral pressing groove section (222) in the shape of a spiral groove. The top of the right vertical pressing groove section (221) is connected to the bottom of the right spiral pressing groove section (222). When the guide pin (31) is located in the right vertical pressing groove section (221), the guide post (2) guides the piston pressing block assembly (3) to move vertically downward. When the guide pin (31) is located in the right spiral pressing groove section (222), the guide post (2) guides the piston pressing block assembly (3) to move right spirally downward.
3. A bidirectional rotatable rotary pressing cylinder according to claim 2, characterized in that: The left spiral pressing groove section (212) and the right spiral pressing groove section (222) are spiraled along the circumferential direction of the guide column (2).
4. A bidirectional rotatable rotary pressing cylinder according to claim 3, characterized in that: The left spiral downward pressure groove section (212) protrudes along the circumferential direction of the guide post (2) below the right spiral downward pressure groove section (222).
5. A bidirectional rotatable rotary pressing cylinder according to claim 4, characterized in that: It also includes a height limiting component (4) to prevent the guide pin (31) from sliding excessively upward in the left helical pressing groove section (212).
6. A bidirectional rotatable rotary pressing cylinder according to claim 5, characterized in that: The cylinder body (1) has a piston cavity (11) formed inside. The piston pressing block assembly (3) includes a piston seat (32) sleeved on the guide post (2). The height limiting assembly (4) includes a fixed height limiting block (41) set on the top of the piston cavity (11) and a movable height limiting block (42) set on the top of the piston seat (32). When the guide pin (31) is located at the top of the right spiral pressing groove section (222), the fixed height limiting block (41) and the movable height limiting block (42) are offset. When the guide pin (31) is located at the top of the left spiral pressing groove section (212), the bottom of the fixed height limiting block (41) abuts against the top of the movable height limiting block (42).
7. A bidirectional rotatable rotary pressing cylinder according to claim 5, characterized in that: The cylinder body (1) has a piston cavity (11) formed inside. The piston pressure block assembly (3) includes a piston seat (32) sleeved on the guide post (2). The height limiting assembly (4) includes a fixed outer ring height limiting block (43) set on the top of the piston cavity (11), a fixed inner ring height limiting block (44) set on the top of the piston cavity (11), a movable outer ring height limiting block (45) set on the top of the piston seat (32), and a movable inner ring height limiting block (46) set on the top of the piston seat (32). The fixed outer ring height limiting block (43) is mirror-symmetrically distributed with the fixed inner ring height limiting block (44) in a concentric circle. The movable outer ring height limiting block (45) is... The fixed outer ring height limit block (43) and the movable inner ring height limit block (45) are arranged in a concentric circle with the mirror symmetry. When the guide pin (31) is located at the top of the right spiral pressing groove section (222), the fixed outer ring height limit block (43) and the movable outer ring height limit block (45) are arranged in a mirror symmetry. The fixed inner ring height limit block (44) and the movable inner ring height limit block (46) are arranged in a mirror symmetry. When the guide pin (31) is located at the top of the left spiral pressing groove section (212), the bottom of the fixed outer ring height limit block (43) abuts against the top of the movable outer ring height limit block (45), and the bottom of the fixed inner ring height limit block (44) abuts against the top of the movable inner ring height limit block (46).
8. A bidirectional rotatable rotary pressing cylinder according to any one of claims 2-7, characterized in that: The cylinder body (1) has a piston cavity (11) formed inside. The piston cavity (11) includes a vertical pressing cavity (111) and a spiral pressing cavity (112) disposed at the top of the vertical pressing cavity (111). The left vertical pressing groove section (211) and the right vertical pressing groove section (221) are respectively located in the vertical pressing cavity (111), and the left spiral pressing groove section (212) and the right spiral pressing groove section (222) are respectively located in the spiral pressing cavity (112). The inner diameter of the spiral pressing cavity (112) is larger than the inner diameter of the vertical pressing cavity (111).
9. A bidirectional rotatable rotary pressing cylinder according to claim 1, characterized in that: The reversing channel (23) is provided with an anti-misreversing component (5), which includes a retractable stop (51) that can be slidably disposed at the position of the reversing channel (23) and a compression spring (52) sandwiched between the retractable stop (51) and the guide post (2).
10. A bidirectional rotatable rotary pressing cylinder according to claim 1, characterized in that: There are at least two left-hand guide grooves (21) and at least two right-hand guide grooves (22). The left-hand guide grooves (21) are arranged in an array along the circumferential direction of the guide post (2), and the right-hand guide grooves (22) are arranged in an array along the circumferential direction of the guide post (2). The piston block assembly (3) includes the same number of guide pins (31) as the left-hand guide grooves (21) or the right-hand guide grooves (22). Each guide pin (31) is located in each left-hand guide groove (21) or in each right-hand guide groove (22) at the same time.