Fixed-point conveying assembly

Abstract

The utility model relates to the field of conveying mechanisms, and discloses a fixed-point conveying assembly which comprises a rodless air cylinder, the rodless air cylinder comprises a cylinder body and a first sliding block arranged outside the cylinder body in a sliding mode, the cylinder body is fixed to a workbench, and an interception air cylinder is vertically installed at the bottom of the workbench and located on the sliding stroke of the first sliding block. The first receding groove is formed in the workbench in the sliding direction of the first sliding block, the piston rod of the interception air cylinder can penetrate through the first receding groove and limit movement of the first sliding block, the fixed-point conveying assembly is suitable for the working condition that the number of pause point positions is small but is larger than two, control is easy, and the manufacturing cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying mechanism field especially relates to a fixed point conveying subassembly. BACKGROUND

[0002] The rodless cylinder refers to the cylinder that utilizes the piston to connect the external executing mechanism directly or indirectly and makes it realize the reciprocating motion along with the piston. The specific structure can refer to the rodless cylinder disclosed by the Chinese patent with the announcement number CN221170178U, which comprises a cylinder body, a sliding assembly (a sliding block) and a piston assembly. The piston assembly is movably arranged in the cylinder body and magnetically adsorbs the sliding assembly. The sliding assembly is guided to be arranged on the cylinder body and the main body is located outside the cylinder body. The piston assembly is driven by the gas pressure to move reciprocatingly along the length direction of the cylinder body and drives the sliding assembly to move synchronously.

[0003] After the executing mechanism is installed on the sliding assembly, the executing mechanism can be driven by the piston assembly to move synchronously. The rodless cylinder is simple in control and low in cost, but the disadvantage is that it cannot be paused in the stroke, that is, it can only be stopped at two points. For the process with less than three points but more than two points, it is obviously not suitable.

[0004] And the electric cylinder or the screw sliding table assembly can be driven by the servo motor, the screw pair and the travel switch to realize the multi-point following and stopping. The disadvantage is that the cost is high and the control is difficult (the logic programming is complex). For some working conditions that require only 3-5 point stopping, the use of electric cylinder or screw sliding table assembly is obviously too high in cost budget. UTILITY MODEL CONTENTS

[0005] The utility model provides a fixed point conveying subassembly in view of the fact that the single rodless cylinder cannot realize the 3-5 point pause and the fact that the electric cylinder or the screw sliding table assembly is high in cost and difficult to control.

[0006] In order to solve the above technical problems, the utility model solves the problems through the following technical schemes:

[0007] A fixed point conveying subassembly, which comprises a rodless cylinder, the rodless cylinder comprising a cylinder body and a first sliding block slidingly arranged outside the cylinder body, the cylinder body being fixed on a workbench, a trapping cylinder being vertically installed on the bottom of the workbench in the sliding stroke of the first sliding block, a first avoiding groove being formed on the workbench in the sliding direction of the first sliding block, and the piston rod of the trapping cylinder being capable of penetrating through the first avoiding groove and limiting the movement of the first sliding block.

[0008] With the above scheme, the trapped air cylinder is added, the number of trapped air cylinders determines the number of fixed-point stops of the conveying assembly, and during control, only the electromagnetic valves of all air cylinders need to be controlled, compared with the separately arranged rodless air cylinder, the number of stop points is increased; compared with the electric cylinder or screw sliding table assembly, the cost is reduced and the control difficulty is simplified, and the fixed-point conveying assembly is suitable for the working condition with less than two stop points under lower budget.

[0009] As preferred, the end of the piston rod of the trapped air cylinder is rotatably provided with a pulley facilitating the lowering of the first sliding block when the first sliding block abuts against the end of the piston rod.

[0010] With the above scheme, when the trapped air cylinder traps the first sliding block, the piston rod and the first sliding block are in an abutting state, and after the pulley is added, when the piston rod is retracted, the sliding friction is changed to rolling friction, and the retraction is more smooth.

[0011] As preferred, the trapped air cylinder is installed with 1 to 3, and each trapped air cylinder is installed on a mounting seat, and the mounting seat is detachably installed on the lower bottom surface of the workbench.

[0012] With the above scheme, the trapped air cylinder is arranged with 1 to 3, which is relatively appropriate within the controllable cost range.

[0013] As preferred, an adjusting limiting mechanism is arranged between the mounting seat and the lower bottom surface of the workbench, which can drive the mounting seat to follow and stop along the sliding direction of the first sliding block.

[0014] As preferred, the adjusting limiting mechanism comprises a first guide rail provided in parallel along the sliding direction of the first sliding block and provided with a guide groove on the bottom of the workbench, guide blocks fixed in parallel on the mounting seat and respectively embedded in a guide groove for guiding sliding, and a limiting rack fixed to the inner wall of a guide groove and extending along the guide of the guide groove, and on one side of the guide block close to the limiting rack, a limiting block that can be retracted into the guide block or partially protrude from the guide block and engage with the limiting rack is elastically stretched and contracted, and the stretching and contraction of the limiting block is controlled by a driving assembly.

[0015] With the above scheme, by controlling the stretching and contraction of the limiting block, the locking or unlocking of the guide block in the guide groove is controlled, and when the guide block is unlocked, the mounting seat can be moved by moving the guide block, thereby realizing the change of the position of the trapped air cylinder, and the above structure is suitable for the quick adjustment of the position of the stop point of the first sliding block in the sliding stroke of the rodless air cylinder when the working condition changes.

[0016] As preferred, the driving assembly comprises a driving rod protruding from the side of the limiting block away from the rack, the driving rod is parallel to the workbench and extends out of the guide block, a second avoiding groove is formed in the groove wall of the guide groove, the driving rod can pass through and guide sliding, an elastic member is sleeved on the driving rod for driving the limiting block to be in a partially protruding state, and a pulling member is arranged at one end of the driving rod away from the limiting rack for easy pulling.

[0017] By pulling the driving rod, the limiting tooth block is retracted, and the guide block is unlocked.

[0018] Preferably, the pulling member is a pull ring, which is hinged to the end of the driving rod.

[0019] By hinging the pull ring to the driving rod, the pull ring is in a falling state in normal state, avoiding the pull ring extending out of the workbench.

[0020] The above technical scheme has the following technical effects:

[0021] 1. The trapped air cylinder is added, the number of the trapped air cylinder determines the number of the fixed-point stop of the conveying assembly, and only the electromagnetic valves of all the air cylinders need to be controlled during control, compared with the separately arranged rodless air cylinder, the number of the stop points is increased; compared with the electric cylinder or the screw sliding table assembly, the cost is reduced and the control difficulty is simplified, and the fixed-point conveying assembly is suitable for the working condition with more than two stop points.

[0022] 2. The adjusting and limiting mechanism is added, the stop point position of the trapped air cylinder in the movement stroke of the rodless air cylinder can be adjusted, and the adaptability is increased. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a top view of a fixed-point conveying assembly of embodiment 1;

[0024] Figure 2 is a front view of a fixed-point conveying assembly of embodiment 1;

[0025] Figure 3 is a front view of a fixed-point conveying assembly of embodiment 2;

[0026] Figure 4 is Figure 3 a sectional view of A-A of the fixed-point conveying assembly of embodiment 1;

[0027] Figure 5 is Figure 4 a sectional view of B-B of the fixed-point conveying assembly of embodiment 1.

[0028] The names of the parts referred to by the numbers in the above drawings are as follows: 1, workbench; 2, cylinder body; 3, first sliding block; 4, first avoiding groove; 5, trapped air cylinder; 51, pulley; 6, assembly base; 61, second sliding block; 7, second guide rail; 8, mounting seat; 9, first guide rail; 91, second avoiding groove; 10, rack; 11, guide block; 1101, accommodating groove; 12, pull ring; 13, limiting tooth block; 14, driving rod; 15, elastic member. DETAILED DESCRIPTION

[0029] The utility model will be described in further detail below in combination with the drawings and embodiments.

[0030] Embodiment 1

[0031] A fixed-point conveying assembly, comprising a workbench 1, a rodless cylinder mounted on the workbench 1, and a trapping cylinder 5 mounted on the lower bottom surface of the workbench 1, the rodless cylinder comprising a cylinder body 2 and a first sliding block 3 slidingly arranged outside the cylinder body 2, the first sliding block 3 being located above the cylinder body 2, an assembly base 6 for assembling an execution member being mounted on the first sliding block 3, the assembly base 6 being driven to move synchronously when the first sliding block 3 slides on the rodless cylinder, in order to increase the stability of the movement of the assembly base 6, a second guide rail 7 extending along the sliding direction of the first sliding block 3 is fixedly mounted on the workbench 1, and the assembly base is fixedly mounted on a second sliding block 61 embeddedly guided and slidingly arranged on the second guide rail 7.

[0032] The trapping cylinder 5 is vertically mounted on a mounting seat 8, the mounting seat 8 being detachably fixed on the lower bottom surface of the workbench 1, in the embodiment, the mounting seat 8 is fastened to the workbench 1 by screws, and a first avoiding groove 4 is arranged on the workbench 1, the piston rod of the trapping cylinder 5 being vertically capable of passing through the first avoiding groove 4, when the first sliding block 3 moves to the trapping cylinder 5, the piston rod of the trapping cylinder 5 protruding and abuttingly cooperating with the first sliding block 3, thereby limiting the movement of the first sliding block 3.

[0033] In order to facilitate the retraction of the piston rod of the trapping cylinder 5, a pulley 51 is rotatably arranged at the end of the piston rod of the trapping cylinder 5.

[0034] The user can arrange the number of trapping cylinders 5 according to the number of stop points, the rodless cylinder has two points of maximum protruding point and maximum retracting point, after arranging 1-3 trapping cylinders 5, 3-5 stop points can be achieved, one trapping cylinder 5 is arranged in the embodiment, which is suitable for the working condition of requiring 3 stop points, the arrangement is simple, easy to control, and the cost is low.

[0035] Embodiment 2

[0036] On the basis of embodiment 1, an adjusting limiting mechanism capable of driving the mounting seat 8 to follow and stop along the sliding direction of the first sliding block 3 is arranged between the mounting seat 8 and the lower bottom surface of the workbench 1, and the first avoiding groove 4 is arranged extending along the sliding direction of the first sliding block 3.

[0037] The adjusting limiting mechanism comprises a first guide rail 9 provided in parallel with the sliding direction of the first sliding block 3 on the bottom of the workbench 1 and provided with a guide slot, guide blocks 11 provided in parallel on the mounting seat 8 and respectively embedded with the guide slot for guiding sliding, and a limiting rack 10 fixed on the inner wall of the guide slot and extending along the guide slot, a recessed slot 1101 is formed on the side of the guide block 11 close to the limiting rack 10, a limiting tooth block 13 capable of being fully retracted into the recessed slot 1101 or partially extended out of the recessed slot 1101 and engaged with the limiting rack 10 is provided in the recessed slot 1101 in an extendible and retractable manner, the extension and retraction of the limiting tooth block 13 is controlled by a driving assembly, the driving assembly comprises a driving rod 14 protruded on the side of the limiting tooth block 13 away from the limiting rack 10, the driving rod 14 is parallel to the workbench 1 and extends out of the guide block 11, a second avoiding slot 91 is formed on the slot wall of the guide slot and capable of being passed through by the driving rod 14 and guiding sliding, an elastic member 15 for driving the limiting tooth block 13 to be partially extended is sleeved on the driving rod 14, the elastic member 15 is a spring, a pulling member is arranged on the end of the driving rod 14 away from the limiting rack 10, the pulling member is a pull ring 12, and the pull ring 12 is hinged on the end of the driving rod 14.

[0038] By pulling the pull ring 12, the limiting tooth block 13 is driven to retract, and the guide block 11 is unlocked; after the pull ring 12 is released, the limiting tooth block 13 is automatically reset under the action of the elastic member 15 and locked with the limiting rack 10 again, the embodiment can adjust the stop point position of the trapped air cylinder 5 in the movement stroke of the rodless cylinder, and increase the adaptability.

[0039] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solution falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A point-to-point delivery assembly comprising a rodless cylinder comprising a cylinder body (2) and a first slider (3) slidingly arranged outside the cylinder body (2), characterized in that: The cylinder (2) is fixed on a workbench (1), a trapping air cylinder (5) is vertically installed on the bottom of the workbench (1) and in the sliding stroke of the first sliding block (3), a first avoiding slot (4) is opened on the workbench (1) along the sliding direction of the first sliding block (3), and the piston rod of the trapping air cylinder (5) can pass through the first avoiding slot (4) and limit the movement of the first sliding block (3).

2. A pinpoint delivery assembly according to claim 1, wherein: The end of the piston rod of the trapping air cylinder (5) is rotationally provided with a pulley (51) facilitating the lowering of the first sliding block (3) when abutting against the first sliding block (3).

3. A pinpoint delivery assembly according to claim 2, wherein: The trapping air cylinder (5) is installed with 1-3, each trapping air cylinder (5) is installed on a mounting seat (8), and the mounting seat (8) is detachably installed on the lower bottom surface of the workbench (1).

4. A pinpoint delivery assembly according to claim 3, wherein: An adjusting and limiting mechanism is arranged between the mounting seat (8) and the lower bottom surface of the workbench (1) to drive the mounting seat (8) to follow and stop along the sliding direction of the first sliding block (3).

5. A pinpoint delivery assembly according to claim 4, wherein: The adjusting and limiting mechanism comprises a first guide rail (9) arranged in parallel along the sliding direction of the first sliding block (3) and provided with a guide groove on the bottom of the workbench (1), guide blocks (11) fixed in parallel on the mounting seat (8) and respectively embedded with a guide groove for guiding sliding, and a limiting rack (10) fixed to the inner wall of a guide groove and extending along the guide of the guide groove, and a limiting tooth block (13) elastically stretched on one side of the guide block (11) close to the limiting rack (10) and capable of being retracted into the guide block (11) or partially protruding from the guide block (11) and engaging with the limiting rack (10), the expansion and contraction of the limiting tooth block (13) being controlled by a driving assembly.

6. A pinpoint delivery assembly according to claim 5, wherein: The driving assembly comprises a driving rod (14) protruding from one side of the limiting tooth block (13) away from the rack (10), the driving rod (14) extending beyond the guide block (11) in parallel to the workbench (1), a second avoiding slot (91) is opened on the groove wall of the guide groove and capable of passing through and guiding the sliding of the driving rod (14), an elastic member (15) is sleeved on the driving rod (14) for driving the limiting tooth block (13) to be in a partially protruding state, and a pulling member is arranged at one end of the driving rod (14) away from the limiting rack (10) for facilitating pulling.

7. A spot-on delivery assembly according to claim 6, wherein: The pulling member is a pull ring (12) hinged to the end of the driving rod (14).

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