Novel cutting head oil cylinder with built-in sensor assembly structure

Abstract

The utility model discloses a novel cutting head oil cylinder with a built-in sensor assembly structure, which relates to the technical field of oil cylinders, and comprises an oil cylinder main body and a fastening mechanism, a sensor is sleeved in the oil cylinder main body, a mounting seat is arranged at the end part of the oil cylinder main body, a positioning sleeve is sleeved in the mounting seat in a matched manner, and the fastening mechanism is arranged on the positioning sleeve. According to the utility model, through the arrangement of the positioning sleeve and the threaded sleeve, when the sensor is assembled, the sensor can be assembled on the oil cylinder only by fastening the positioning sleeve of the sensor, and the mode of directly installing the sensor in the prior art is replaced by installing the positioning sleeve; the oil cylinder with the built-in sensor can effectively solve the risk that components and sealing pieces in the sensor are damaged due to too large tightening force or knocking force, a special positioning sleeve and a special threaded sleeve can be customized according to the model of the sensor, the sensor is embedded in the positioning sleeve and the threaded sleeve, and the oil cylinder is widely applied to other oil cylinders with built-in sensors.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinders, and in particular relates to a cutting head oil cylinder with a novel built-in sensor assembly structure. Background Art

[0002] As a driving component, the oil cylinder can effectively convert hydraulic energy into mechanical energy. It is widely used in industry. In specific work, the position of the piston inside the oil cylinder needs to be monitored in real time. At present, the position of the piston rod is usually monitored by a position sensor, and the position of the piston is indirectly known. The existing technology for installing a built-in sensor on the oil cylinder is as follows: a groove matching the bottom of the built-in sensor is directly machined on the bottom of the cutting head oil cylinder. When installing the sensor, the sensor needs to be gently knocked into the groove at the bottom of the cylinder, and finally fixed in the corresponding groove of the sensor with a set screw and a steel ball to prevent it from falling off. When machining the groove at the bottom of the cylinder, its tolerance accuracy must be ensured so that it can fit with the sensor according to the standard tolerance. Therefore, the machining accuracy of the cylinder bottom is very high to ensure that it can fully meet the design dimensions and cannot exceed the tolerance. Once the tolerance is exceeded, the cylinder sensor part will leak oil. In serious cases, the cylinder bottom may be directly scrapped, wasting manpower and material resources; and when the sensor is knocked into the bottom of the cylinder, due to the violent impact, the only sealing mechanism on the sensor may be scratched or damaged, causing the sensor's sealing to be destroyed and oil leakage to occur; and when using the set screw, the set screw directly acts on the bottom of the sensor. Once the tightening force of the set screw is too large, it may damage the components in the sensor, causing damage to the sensor. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a cutting head oil cylinder with a novel built-in sensor assembly structure.

[0004] The utility model adopts the following scheme to solve the technical problems: a cutting head oil cylinder with a novel built-in sensor assembly structure comprises an oil cylinder body and a fastening mechanism, wherein a sensor is sleeved in the oil cylinder body, a mounting seat is provided at the end of the oil cylinder body, a positioning sleeve is matched and sleeved in the mounting seat, the end of the sensor is sleeved in the mounting groove of the positioning sleeve, and a threaded sleeve abutting against the sensor is threadedly sleeved on the rear end of the positioning sleeve; the fastening mechanism comprises an oil chamber 1 and an oil chamber 2 which are opened in the positioning sleeve on the left and right, and the oil chamber 1 and the oil chamber 2 are connected by an oil return channel, an oil chamber piston 1 and an oil chamber piston 2 are vertically matched and slidably sleeved in the oil chamber 1 and the oil chamber 2, a fastening plate is matched and provided in the groove of the outer wall of the positioning sleeve, the fastening plate is connected to the oil chamber piston 2 through a rod body 2, a steel ball groove is provided on the side wall of the positioning sleeve, and a rod body 1 which vertically moves and penetrates the steel ball groove is provided on the oil chamber piston 1.

[0005] Furthermore, the oil cylinder body includes a cylinder barrel, in which a main piston rod is slidably mounted through a guide sleeve, the rear end of the main piston rod is fixedly mounted with a main piston, and the front end of the main piston rod is provided with a rod head, the sensor is matched and mounted in the main piston rod, the rear end of the cylinder barrel is provided with a cylinder bottom, and the mounting seat is mounted in the cylinder bottom.

[0006] Furthermore, the cylinder bottom, the mounting sleeve and the positioning sleeve are connected by means of set screws, the mounting position of the set screws corresponds to the steel ball groove, and a steel ball is placed in the steel ball groove.

[0007] Furthermore, the upper end of the rod body 1 is a curved surface structure matching the steel ball.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model provides a positioning sleeve and a threaded sleeve. When assembling the sensor, the sensor can be assembled on the oil cylinder by only tightening the sensor positioning sleeve. By installing the positioning sleeve instead of directly installing the sensor in the prior art, the risk of damaging the internal components and seals of the sensor due to excessive tightening force or knocking force can be effectively solved. In addition, a special positioning sleeve and threaded sleeve can be customized according to the model of the sensor, and the sensor can be embedded in it. It is widely used in other oil cylinders with built-in sensors.

[0010] By setting a fastening mechanism, when using a set screw to fix the locating sleeve, the set screw can push the steel ball to press rod body one to move downward, press the hydraulic oil in oil chamber one into oil chamber two, push oil chamber piston two to move upward, and make the fastening plate be pushed out from the groove and tightly abut against the inner wall of the mounting seat, and the slight processing error between the locating sleeve and the mounting hole of the mounting seat can be ignored to achieve the stable fixation of the locating sleeve, thereby reducing the processing accuracy of the cylinder bottom and alleviating the processing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 2 It is a partial structural schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the fastening mechanism structure of the utility model;

[0014] Figure 4 for Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0015] In the figure: 1. sensor; 2. positioning sleeve; 21. mounting groove; 22. threaded groove; 3. set screw; 4. fastening mechanism; 41. steel ball; 42. steel ball groove; 43. oil chamber one; 44. oil chamber piston one; 45. oil return channel; 46. oil chamber two; 47. oil chamber piston two; 48. fastening plate; 49. groove; 5. threaded sleeve; 6. cylinder bottom; 7. wiring cover; 8. piston fixing screw; 9. main piston; 10. valve block; 11. main piston rod; 12. cylinder barrel; 13. guide sleeve; 14. rod head; 15. mounting seat. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] See also Figure 1-4 The utility model provides a technical solution for a cutting head oil cylinder with a novel built-in sensor assembly structure: Example

[0018] according to Figure 1 and Figure 2As shown, the oil cylinder body includes a cylinder barrel 12, a guide sleeve 13 is fixedly sleeved on the front end of the cylinder barrel 12, a main piston rod 11 is slidably sleeved in the cylinder barrel 12 through the guide sleeve 13, a rod head 14 is provided at the front end of the main piston rod 11, and a main piston 9 is fixedly sleeved on the rear end of the main piston rod 11 through a piston fixing screw 8, a cylinder bottom 6 is provided at the rear end of the cylinder barrel 12, a mounting seat 15 is fixedly sleeved in the cylinder bottom 6, a positioning sleeve 2 is matched and sleeved in the mounting seat 15, the positioning sleeve 2 can be processed according to the actual groove size of the cylinder bottom, even if the matching surface is out of tolerance, the sealing performance can be ensured by changing the size of the positioning sleeve 2, which can prevent the leakage of oil from the cylinder bottom and the scrapping of the cylinder bottom, a sensor 1 is matched and sleeved in the main piston rod 11, a mounting groove 21 is provided on the positioning sleeve 2, the end of the sensor 1 is sleeved in the mounting groove 21 of the positioning sleeve 2, and a threaded hole is provided at the rear end of the positioning sleeve 2, a threaded sleeve 5 is threadedly sleeved in the threaded hole, and a center through hole on the threaded sleeve 5 A through hole is provided, and when the threaded sleeve 5 is screwed to the bottom, the inner end of the threaded sleeve 5 abuts against the end of the sensor 1, and the wiring of the sensor 1 passes through the through hole and extends outward along the wiring hole, a wiring cover 7 is provided on the side wall of the cylinder barrel 12, and a fastening screw hole is vertically provided on the cylinder bottom 6 and the mounting sleeve, the cylinder bottom 6, the mounting sleeve and the positioning sleeve 2 are fixedly connected by the fastening screw 3, and a steel ball groove 42 corresponding to the fastening screw hole is provided on the side wall of the positioning sleeve 2, a steel ball 41 is placed in the steel ball groove 42, and a valve block 10 is provided on the cylinder barrel 12; when installing the sensor, it is only necessary to first install the sensor 1 on the positioning sleeve 2, and then tighten the positioning sleeve 2 and the threaded sleeve 5, and then push the positioning sleeve 2 into the mounting seat 15 of the cylinder bottom 6, and install the sensor 1 through the positioning sleeve 2, which can avoid knocking the bottom of the sensor 1, protect the seal on the sensor and internal components from damage, and multiple sealing structures can be installed on the positioning sleeve 2 to ensure the sealing of the cylinder bottom 6.

[0019] During specific use, the utility model is a cutting head oil cylinder with a novel built-in sensor assembly structure. When installing the sensor 1, first take out the positioning sleeve 2 with the corresponding O-ring and retaining ring installed, and then push it onto the base of the end of the sensor 1 (the corresponding groove 49 of the sensor 1 should first be installed with the corresponding O-ring and retaining ring), and then screw the threaded sleeve 5 into the threaded hole on the positioning sleeve 2 to fix the sensor 1, and finally install the positioning sleeve 2 as a whole on the mounting seat 15 of the cylinder bottom 6, and put the steel ball 41 in the steel ball groove 42, and then use the set screw 3 to fix the sensor 1 assembly on the oil cylinder. Under the condition that the original structure remains unchanged, the positioning sleeve 2 and the threaded sleeve 5 are added, and the processing size of the cylinder bottom 6 is appropriately changed, so as to realize the assembly of the sensor 1. Example

[0020] Based on the first embodiment, the same points as the first embodiment will not be repeated here, and the differences are as follows: Figure 3 and Figure 4As shown, a fastening mechanism 4 is provided on the positioning sleeve 2, including an oil chamber 1 43 and an oil chamber 2 46 which are opened in the positioning sleeve 2 on the left and right, and the oil chamber 1 43 and the oil chamber 2 46 are connected by an oil return channel 45, and an oil chamber piston 1 44 is vertically matched and slidably sleeved in the oil chamber 1 43, and a rod body 1 is provided on the oil chamber piston 1 44 which is vertically movable and penetrates the steel ball groove 42, and the upper end of the rod body 1 presents an arc surface structure matching the steel ball 41, and an oil chamber piston 2 47 is vertically matched and slidably sleeved in the oil chamber 2 46, and a rod body 2 is vertically connected above the oil chamber piston 2 47, a groove 49 is opened on the outer wall of the positioning sleeve 2, and a fastening plate 48 is matched and provided in the groove 49, and the fastening plate 48 is connected to the oil chamber piston 2 47 through the rod body 2, and the fastening plate 48 can adopt a flexible structure with a certain elastic effect, such as silicone, and there are a total of multiple groups of fastening mechanisms 4, and they are circumferentially arranged on the positioning sleeve 2.

[0021] During specific use, the utility model is a cutting head oil cylinder with a novel built-in sensor assembly structure. After the positioning sleeve 2 and the sensor 1 are installed into the mounting seat 15, when the fixing screw 3 is installed, as the fixing screw 3 moves downward, the steel ball 41 can be pushed to press the rod body 1 to move downward, pushing the oil chamber piston 1 44 to move downward, and pressing the hydraulic oil in the oil chamber 1 43 into the oil chamber 2 46, pushing the oil chamber piston 2 47 to move upward, and pushing the fastening plate 48 out of the groove 49 to tightly abut against the inner wall of the mounting seat 15. In this way, even if there is a matching error between the positioning sleeve 2 and the mounting seat 15, the positioning sleeve 2 can be stably placed in the mounting seat 15 under the pushing action of the fastening plate 48.

[0022] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of cutting head oil cylinder with a built-in sensor assembly structure, comprising an oil cylinder body, characterized in that: It also includes a fastening mechanism, a sensor is sleeved in the oil cylinder body, a mounting seat is provided at the end of the oil cylinder body, a positioning sleeve is matched and sleeved in the mounting seat, the end of the sensor is sleeved in the mounting groove of the positioning sleeve, and the rear end of the positioning sleeve is threadedly sleeved with a threaded sleeve abutting the sensor; the fastening mechanism includes an oil chamber 1 and an oil chamber 2 opened in the positioning sleeve on the left and right, and the oil chamber 1 and the oil chamber 2 are connected by an oil return channel, the oil chamber 1 and the oil chamber 2 are vertically matched and slidably sleeved with an oil chamber piston 1 and an oil chamber piston 2, a fastening plate is matched and provided in the groove of the outer wall of the positioning sleeve, the fastening plate is connected to the oil chamber piston 2 through a rod body 2, a steel ball groove is provided on the side wall of the positioning sleeve, and the oil chamber piston 1 is provided with a rod body 1 that vertically moves through the steel ball groove.

2. According to the novel cutter head oil cylinder with built-in sensor assembly structure as claimed in claim 1, it is characterized by: The oil cylinder body comprises a cylinder barrel, in which a main piston rod is slidably mounted through a guide sleeve, a main piston is fixedly mounted on the rear end of the main piston rod, and a rod head is arranged at the front end of the main piston rod, the sensor is matched and mounted in the main piston rod, a cylinder bottom is arranged at the rear end of the cylinder barrel, and the mounting seat is mounted in the cylinder bottom.

3. According to claim 2, a new type of cutting head oil cylinder with built-in sensor assembly structure is characterized in that: The cylinder bottom, the mounting sleeve and the positioning sleeve are connected by means of set screws, the mounting position of the set screws corresponds to the steel ball groove, and a steel ball is placed in the steel ball groove.

4. The new type of cutting head oil cylinder with built-in sensor assembly structure according to claim 3 is characterized by: The upper end of the rod body 1 is in an arc surface structure matching the steel ball.

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