Linear actuator positioning jig with helical teeth

Abstract

The utility model relates to positioning jig technical field, and disclose the straight line actuator positioning jig with helical gear has the beneficial effect that when needing to clamp work piece, starting cylinder drives output shaft to move back and forth, output shaft is fixedly connected with the connecting block at this time, makes the connecting block drive connecting plate to move back and forth, simultaneously, since the slide connection of the mounting groove and the screw hole of the clamping block, make the helical tooth be driven to move back and forth, make the helical tooth clamp the work piece of specified size, make the helical tooth keep work piece fixed, thereby realize the effect of multidirectional fixation.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, and more specifically, to a linear actuator positioning fixture with helical teeth. Background Technology

[0002] A positioning fixture, often simply called a "fixture" or "clamp," is an auxiliary tool or device specifically designed and manufactured to accurately, quickly, and consistently determine the position of a workpiece or tool. However, most existing positioning fixtures can only clamp the workpiece in a fixed direction. When subjected to forces from other directions, positional shifts may occur, leading to unstable locking. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a linear actuator positioning fixture with helical teeth, which has the advantage of firm clamping.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a linear actuator positioning fixture with helical teeth, comprising a processing table, a connecting base fixedly installed above the processing table, a first bolt engaged inside the connecting base, a cylinder fixedly installed above the first bolt, the first bolt passing through the inside of the cylinder, and an output shaft fixedly installed at the output end of the cylinder; a connecting block, the connecting block being fixedly connected to the output end of the output shaft, a second bolt engaged inside the connecting block, a connecting plate provided on the outer side of the connecting block, a screw hole provided inside the connecting plate for assembly with the second bolt, an mounting block fixedly installed on the side of the connecting plate away from the connecting block, a clamping block provided at the end of the connecting plate away from the connecting block, an installation groove provided inside the clamping block for sliding connection with the mounting block, and helical teeth fixedly installed on the side of the clamping block away from the connecting plate.

[0005] The beneficial effects of adopting the above technical solution are as follows: When it is necessary to clamp the workpiece, the cylinder is started to drive the output shaft to move back and forth. At this time, the output shaft is fixedly connected to the connecting block, which causes the connecting block to drive the connecting plate to move back and forth. At the same time, since the clamping block is slidably connected to the mounting groove and the screw hole, the helical teeth are driven to move back and forth, so that the helical teeth clamp the workpiece of the specified size and keep the workpiece fixed, thereby achieving the effect of multi-directional fixation.

[0006] As a preferred embodiment of the present invention, there are multiple clamping blocks, which are distributed in a front-to-back relative direction. There are multiple oblique teeth, which are located on the outside of two opposite clamping blocks, and the oblique teeth are inclined in pairs in opposite directions.

[0007] The beneficial effects of adopting the above technical solution are as follows: multiple helical teeth fix the front and rear sides of the workpiece in opposite directions. The helical teeth at the front wedge their roots deeper into the workpiece, generating significant resistance. At the same time, the helical teeth at the rear also create a "biting" effect due to the leftward movement of the workpiece. Therefore, no matter which direction the workpiece wants to move, there will always be a helical tooth on one side that provides a strong "backstop" effect, nipping any minor displacement in the bud. This achieves a bidirectional self-locking effect, resulting in extremely stable positioning.

[0008] As a preferred embodiment of this utility model, a positioning pin is fixedly installed above the processing table. The positioning pin is cylindrical, and there are multiple positioning pins, each located in the middle area of ​​the processing table.

[0009] The beneficial effects of adopting the above technical solution are: the main function of multiple locating pins is to provide the workpiece with a precise and repeatable relative positional relationship and restrict their degrees of freedom, and to cooperate with multiple helical teeth to prevent them from moving together.

[0010] As a preferred embodiment of this utility model, the bottom of the connecting plate and the clamping block is provided with a base plate, and the base plate is fixedly connected to the connecting block.

[0011] The beneficial effects of adopting the above technical solution are: the base plate supports the connecting plate and the clamping block respectively, so that when the clamping block drives the helical teeth to clamp the workpiece, it maintains a stable effect.

[0012] As a preferred technical solution of this utility model, an air nozzle is fixedly installed on the outside of the cylinder. There are multiple air nozzles, and the multiple air nozzles are divided into air inlets and air outlets.

[0013] The beneficial effects of adopting the above technical solution are: multiple air nozzles are connected to the air pump, which enables the air pump to control the piston inside the cylinder to move, thereby enabling the cylinder to drive the connecting block to move back and forth through the output shaft.

[0014] As a preferred embodiment of this utility model, there are six cylinders, which are distributed in pairs facing each other.

[0015] The beneficial effect of adopting the above technical solution is that six cylinders form three workstations, thereby achieving the effect of clamping and fixing three workpieces at the same time.

[0016] As a preferred embodiment of this utility model, there are multiple screw holes and mounting blocks, and the multiple screw holes are slidably connected to the multiple mounting blocks respectively, and the multiple screw holes are all cylindrical.

[0017] The beneficial effect of adopting the above technical solution is that multiple screw holes are slidably connected with multiple mounting blocks, thereby enabling multiple clamping blocks to be quickly installed and disassembled with multiple connecting plates.

[0018] As a preferred embodiment of this utility model, there are multiple first bolts, which respectively engage with multiple cylinders. The multiple cylinders are all located above the processing table. There are multiple connecting bases, which respectively engage with multiple first bolts.

[0019] The beneficial effect of adopting the above technical solution is that multiple first bolts engage with multiple cylinders, thereby fixing the multiple cylinders firmly above the multiple connecting bases, thus keeping the direction of the multiple cylinders driving the connecting blocks to move back and forth fixed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the helical tooth structure of this utility model; Figure 4 This is a schematic diagram of the cylinder structure of this utility model; Figure 5 This is a schematic diagram of the connecting base structure of this utility model; Figure 6 This is an exploded view of the clamping component of this utility model.

[0021] In the diagram: 1. Machining table; 2. Connecting base; 3. First bolt; 4. Cylinder; 5. Output shaft; 6. Connecting block; 7. Second bolt; 8. Connecting plate; 9. Screw hole; 10. Mounting block; 11. Clamping block; 12. Mounting groove; 13. Helical gear; 14. Positioning pin; 15. Base plate; 16. Air nozzle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6As shown, this utility model provides a positioning fixture for a linear actuator with helical teeth, including a processing table 1, a connecting base 2 fixedly installed on the top of the processing table 1, a first bolt 3 engaged inside the connecting base 2, a cylinder 4 fixedly installed above the first bolt 3, the first bolt 3 passing through the inside of the cylinder 4, an output shaft 5 fixedly installed at the output end of the cylinder 4; a connecting block 6, the connecting block 6 being fixedly connected to the output end of the output shaft 5, a second bolt 7 engaged inside the connecting block 6, a connecting plate 8 provided on the outer side of the connecting block 6, a screw hole 9 opened inside the connecting plate 8, the screw hole 9 being assembled with the second bolt 7, an mounting block 10 fixedly installed on the side of the connecting plate 8 away from the connecting block 6, a clamping block 11 provided on the end of the connecting plate 8 away from the connecting block 6, an mounting groove 12 opened inside the clamping block 11, the mounting groove 12 being slidably connected to the mounting block 10, and a helical tooth 13 fixedly installed on the side of the clamping block 11 away from the connecting plate 8.

[0024] The beneficial effects of adopting the above technical solution are as follows: When it is necessary to clamp the workpiece, the cylinder 4 is started to drive the output shaft 5 to move back and forth. At this time, the output shaft 5 is fixedly connected to the connecting block 6, which causes the connecting block 6 to drive the connecting plate 8 to move back and forth. At the same time, since the clamping block 11 is slidably connected to the mounting groove 12 and the screw hole 9, the helical tooth 13 is driven to move back and forth, so that the helical tooth 13 clamps the workpiece of the specified size and keeps the workpiece fixed, thereby achieving the effect of multi-directional fixation.

[0025] There are multiple clamping blocks 11, which are distributed in a front-to-back direction. There are multiple helical teeth 13, which are located on the outside of two opposite clamping blocks 11, and the multiple helical teeth 13 are inclined in pairs in opposite directions.

[0026] The beneficial effects of the above technical solution are as follows: multiple helical teeth 13 fix the front and rear sides of the workpiece in opposite directions. The helical teeth 13 at the front will wedge their roots deeper into the workpiece, generating huge resistance. At the same time, the helical teeth 13 at the rear will also have a "biting" effect due to the leftward movement of the workpiece. Therefore, no matter which direction the workpiece wants to move, there will always be a helical tooth 13 on one side that will play a strong "reverse stop" role, nipping any slight displacement in the bud. This achieves a bidirectional self-locking effect, resulting in an extremely stable positioning effect.

[0027] Among them, a positioning pin 14 is fixedly installed on the top of the processing table 1. The positioning pin 14 is a cylinder, and there are multiple positioning pins 14, which are located in the middle area of ​​the processing table 1.

[0028] The beneficial effects of adopting the above technical solution are: the main function of the multiple locating pins 14 is to provide the workpiece with a precise and repeatable relative positional relationship and restrict their degrees of freedom, and cooperate with the multiple helical teeth 13 to prevent them from moving together.

[0029] The bottom of the connecting plate 8 and the clamping block 11 is provided with a base plate 15, and the base plate 15 is fixedly connected to the connecting block 6.

[0030] The beneficial effects of adopting the above technical solution are: the base plate 15 supports the connecting plate 8 and the clamping block 11 respectively, so that when the clamping block 11 drives the helical teeth 13 to clamp the workpiece, it maintains a stable effect.

[0031] Among them, an air nozzle 16 is fixedly installed on the outside of the cylinder 4. There are multiple air nozzles 16, which are divided into air inlets and air outlets.

[0032] The beneficial effects of adopting the above technical solution are: multiple air nozzles 16 are connected to the air pump, so that the air pump controls the piston inside the cylinder 4 to move, thereby enabling the cylinder 4 to drive the connecting block 6 to move back and forth through the output shaft 5.

[0033] There are six cylinders 4, which are arranged in pairs facing each other.

[0034] The beneficial effect of adopting the above technical solution is that six cylinders 4 form three workstations, thereby achieving the effect of clamping and fixing three workpieces at the same time.

[0035] There are multiple screw holes 9 and mounting blocks 10. The multiple screw holes 9 are slidably connected to the multiple mounting blocks 10 respectively. The multiple screw holes 9 are all cylindrical.

[0036] The beneficial effect of adopting the above technical solution is that multiple screw holes 9 are slidably connected with multiple mounting blocks 10, thereby enabling multiple clamping blocks 11 to be quickly installed and disassembled with multiple connecting plates 8.

[0037] There are multiple first bolts 3, which engage with multiple cylinders 4 respectively. The multiple cylinders 4 are all located above the processing table 1. There are multiple connecting bases 2, which engage with multiple first bolts 3 respectively.

[0038] The beneficial effect of adopting the above technical solution is that multiple first bolts 3 engage with multiple cylinders 4, thereby fixing multiple cylinders 4 above multiple connecting bases 2, thus keeping the direction of the multiple cylinders 4 driving the connecting block 6 to move back and forth fixed.

[0039] Working principle and usage process of this utility model: Firstly, a connecting plate 8 is provided on the outside of the connecting block 6. A screw hole 9 is provided inside the connecting plate 8, and the screw hole 9 is engaged with the second bolt 7. An installation block 10 is fixedly installed on the side of the connecting plate 8 away from the connecting block 6. A clamping block 11 is provided at the end of the connecting plate 8 away from the connecting block 6. An installation groove 12 is provided inside the clamping block 11, and the installation groove 12 is slidably connected to the installation block 10. At the same time, a helical tooth 13 is fixedly installed on the side of the clamping block 11 away from the connecting plate 8. When it is necessary to clamp the workpiece, the cylinder 4 is activated to drive the output shaft 5 to move back and forth. At this time, the output shaft 5 is fixedly connected to the connecting block 6, causing the connecting block 6 to drive the connecting plate 8 to move back and forth. At the same time, because the clamping block 11 is slidably connected to the installation groove 12 and the screw hole 9, the helical tooth 13 is driven to move back and forth, so that the helical tooth 13 clamps the workpiece of the specified size and keeps the workpiece fixed, thereby achieving the effect of multi-directional fixation. Secondly, because there are multiple clamping blocks 11 distributed in a front-to-back orientation, and multiple helical teeth 13 located on the outer sides of two opposing clamping blocks 11, with each helical tooth 13 inclined in pairs, the multiple helical teeth 13 fix the front and rear sides of the workpiece in opposite directions. The helical teeth 13 at the front will wedge their roots deeper into the workpiece, generating significant resistance. At the same time, the helical teeth 13 at the rear will also create a "biting" effect due to the leftward movement of the workpiece. Therefore, no matter which direction the workpiece wants to move, there will always be a helical tooth 13 on one side that will play a strong "reverse stop" role, nipping any slight displacement in the bud. This achieves a bidirectional self-locking effect, resulting in extremely stable positioning. Finally, a positioning pin 14 is fixedly installed above the machining table 1. The positioning pin 14 is cylindrical, and there are multiple positioning pins 14. The multiple positioning pins 14 are located in the middle area of ​​the machining table 1. The main function of the multiple positioning pins 14 is to provide the workpiece with a precise and repeatable relative positional relationship and restrict their degrees of freedom, and cooperate with multiple helical teeth 13 to prevent them from moving.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linear actuator positioning fixture with helical teeth, characterized in that, include A processing table, with a connecting base fixedly installed on top of the processing table, a first bolt engaged inside the connecting base, a cylinder fixedly installed above the first bolt, the first bolt passing through the inside of the cylinder, and an output shaft fixedly installed at the output end of the cylinder; A connecting block is fixedly connected to the output end of the output shaft. A second bolt is engaged inside the connecting block. A connecting plate is provided on the outer side of the connecting block. A screw hole is opened inside the connecting plate, and the screw hole is assembled with the second bolt. An installation block is fixedly installed on the side of the connecting plate away from the connecting block. A clamping block is provided on the end of the connecting plate away from the connecting block. An installation groove is opened inside the clamping block, and the installation groove is slidably connected to the installation block. A helical tooth is fixedly installed on the side of the clamping block away from the connecting plate.

2. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: There are multiple clamping blocks, which are distributed in a front-to-back opposite direction. There are multiple helical teeth, which are located on the outside of two opposite clamping blocks, and the multiple helical teeth are inclined in pairs in opposite directions.

3. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: A positioning pin is fixedly installed above the processing table. The positioning pin is cylindrical and there are multiple positioning pins, each located in the middle area of ​​the processing table.

4. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: The bottom of the connecting plate and the clamping block is provided with a base plate, and the base plate is fixedly connected to the connecting block.

5. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: A nozzle is fixedly installed on the outside of the cylinder. There are multiple nozzles, and each nozzle is divided into an air inlet and an air outlet.

6. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: There are six cylinders, which are arranged in pairs facing each other.

7. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: There are multiple screw holes and mounting blocks, and the multiple screw holes are slidably connected to the multiple mounting blocks respectively. The multiple screw holes are all cylindrical.

8. The linear actuator positioning fixture with helical teeth according to claim 1, characterized in that: There are multiple first bolts, and each of the multiple first bolts engages with a multiple of the cylinders. The multiple cylinders are all located above the processing table. There are multiple connecting bases, and each of the multiple connecting bases engages with a multiple of the first bolts.

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