Linear module with self-locking mechanism

Abstract

The utility model discloses a linear module with a self-locking mechanism, which belongs to the field of linear modules and comprises a bottom plate, and a transmission case is mounted at one end of the bottom plate. By arranging the self-locking mechanism, the self-locking mechanism is installed on the bottom plate, on the premise that it is guaranteed that the lead screw is locked, disassembly and replacement can be rapidly carried out, meanwhile, more space is not needed for wiring, a fine adjustment assembly is adopted, the relative height of the installation base can be finely adjusted, and therefore the height of the locking assembly is changed; on the premise that the elastic effect of the abutting spring is not changed, the locking acting force on the lead screw can be changed, the use flexibility and adaptability are high, the fastening piece is arranged in the locking assembly, the fastening protrusion is arranged in the groove in the fastening piece, the locking effect on the lead screw is further improved, meanwhile, the fastening piece is installed in the assembling groove through the connecting bolt, and therefore the fastening effect on the lead screw is improved. And mounting and dismounting are convenient, replacement of abraded fasteners is facilitated, and the follow-up locking effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of linear modules, in particular to a linear module with a self-locking mechanism. Background Art

[0002] There are several names for linear modules, such as linear modules, rectangular coordinate robots, linear slides, etc. They are automation upgrade units following linear guides, linear motion modules, and ball screw linear transmission mechanisms. The combination of various units can achieve linear and curved motion of the load, making the automation of light loads more flexible and positioning more accurate. In order to ensure the stability of the linear module when it is stationary, a self-locking mechanism is usually set on the linear module for locking.

[0003] The existing patent number is: CN212947811U discloses "A linear module with a self-locking mechanism". In this patent, the locking and loosening of the self-locking mechanism are realized by using structures such as electromagnets, card blocks, and extrusion springs, which can ensure the flexible use of the linear module. However, in the above patent, the electromagnets, card blocks and other structures are installed on the slide and will move with the slide. The power cord needs to be connected to the slide to ensure the normal use of the electromagnet. In this way, more space is required for wiring. At the same time, the card block is set inside the slide. If the card block position is abnormal, it will affect the normal rotation of the screw rod. Since the card block is inside the slide, it is not convenient to disassemble, replace and carry out maintenance work, and it is extremely inconvenient to operate. At the same time, the self-locking mechanism in the above patent cannot be fine-tuned, and the locking effect cannot be adjusted according to the actual situation. The use effect is general. Utility Model Content

[0004] The main purpose of the utility model is to provide a linear module with a self-locking mechanism, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A linear module with a self-locking mechanism comprises a base plate, a transmission box is installed at one end of the base plate, and a servo motor is provided on the transmission box, a slide rail is provided on the base plate, and a movable plate is provided on the slide rail through a sliding frame, a screw rod is connected to the transmission box, and a self-locking mechanism is installed on the base plate, and the self-locking mechanism comprises a mounting plate, a base, a mounting seat, an electromagnet, a fine-tuning assembly, a locking assembly and a guide rod, the base is installed on the mounting plate, the electromagnet is arranged on the mounting seat, and the mounting seat is arranged in the base, the fine-tuning assembly is connected to the mounting seat and the mounting plate, and the locking assembly is arranged above the mounting seat through the guide rod.

[0007] Preferably, an end plate is fixed on the base plate, and a rotating seat is installed on the end plate, and the end of the screw rod is connected to the rotating seat.

[0008] Preferably, the self-locking mechanism also includes mounting screws, a support plate and a clamping spring, the mounting screws are arranged at the corners of the mounting plate, and the mounting plate is fixed to the base plate by the mounting screws, the support plate is fixed to the mounting seat, the guide rod passes through the support plate, the clamping spring is sleeved on the guide rod, and the ends of the clamping spring respectively contact the support plate and the locking assembly.

[0009] Preferably, the fine-tuning assembly includes a fixing rod, a screw hole, an adjustment plate, a U-shaped hole, an adjustment screw, a first limit plate and a second limit plate, the screw hole is opened on the fixing rod, and the fixing rod is fixed on the mounting plate, the U-shaped hole is opened on the adjustment plate, and the adjustment plate is fixed on both sides of the mounting seat, the first limit plate and the second limit plate are fixed on the adjustment screw, and the adjustment screw passes through the U-shaped hole, the first limit plate and the second limit plate respectively contact the upper surface and the lower surface of the adjustment plate, and the lower end of the adjustment screw is connected to the screw hole.

[0010] Preferably, the locking assembly includes a lifting seat, an assembly groove, a threaded hole, an iron block, a fastener, a connecting bolt and a fastening protrusion, the assembly groove and the threaded hole are opened on the lifting seat, the iron block is fixed to the lower end of the lifting seat, the fastener is fixed in the assembly groove on the lifting seat by the connecting bolt, and the fastening protrusion is arranged in a groove on the fastener.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the linear module with a self-locking mechanism installs the self-locking mechanism on the base plate through the self-locking mechanism set up, and can be quickly disassembled and replaced under the premise of ensuring the locking of the screw rod, and no more space is needed for wiring. The fine-tuning component is adopted to fine-tune the relative height of the mounting seat, thereby changing the height of the locking component. Under the premise that the elastic effect of the clamping spring remains unchanged, the locking force on the screw rod can be changed, and the use flexibility and adaptability are high. A fastener is arranged in the locking assembly, and a fastening protrusion is arranged in the groove on the fastener, which further improves the locking effect on the screw rod. At the same time, the fastener is installed in the assembly groove by a connecting bolt, which is convenient for installation and disassembly, and is conducive to the replacement of worn fasteners, thereby ensuring the subsequent locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the self-locking mechanism of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the fine-tuning component of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the locking assembly of the utility model.

[0016] In the figure: 1, bottom plate; 2, transmission box; 3, servo motor; 4, slide rail; 5, slide frame; 6, movable plate; 7, screw rod; 8, self-locking mechanism; 801, mounting plate; 802, mounting screw; 803, base; 804, mounting seat; 805, electromagnet; 806, support plate; 807, fine adjustment assembly; 8071, fixing rod; 8072, screw hole; 8073, adjustment plate; 8074, U-shaped hole; 8075, adjusting screw; 8076, first limit plate; 8077, second limit plate; 808, locking assembly; 8081, lifting seat; 8082, assembly groove; 8083, threaded hole; 8084, iron block; 8085, fastener; 8086, connecting bolt; 8087, fastening protrusion; 809, guide rod; 810, tightening spring; 9, end plate; 10, rotating seat. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 4 As shown, a linear module with a self-locking mechanism includes a base plate 1, a transmission box 2 is installed at one end of the base plate 1, and a servo motor 3 is provided on the transmission box 2, a slide rail 4 is provided on the base plate 1, and a movable plate 6 is provided on the slide rail 4 through a sliding frame 5, a screw rod 7 is connected to the transmission box 2, and a nut seat threadedly connected to the screw rod 7 is provided on the movable plate 6, a self-locking mechanism 8 is installed on the base plate 1, an end plate 9 is fixed on the base plate 1, and a rotating seat 10 is installed on the end plate 9, and the end of the screw rod 7 is connected to the rotating seat 10.

[0019] When using the linear module, after starting the servo motor 3 at the transmission box 2, the servo motor 3 runs through the internal mechanism of the transmission box 2 to rotate the screw rod 7, and the screw rod 7 drives the movable plate 6 to move through the nut seat. During this process, the movable plate 6 moves along the slide rail 4 through the sliding frame 5, and the end of the screw rod 7 rotates in the rotating seat 10 on the end plate 9, ensuring the normal use of the linear module. During the use of the linear module, the self-locking mechanism 8 is in a loosened state. When the linear module is stationary, the self-locking mechanism 8 runs to lock the light rod part at the end of the screw rod 7, thereby achieving a self-locking effect and ensuring that the linear module has good stability when not in operation.

[0020] According to the above embodiment, the self-locking mechanism 8 includes a mounting plate 801, a base 803, a mounting seat 804, an electromagnet 805, a fine-tuning assembly 807, a locking assembly 808 and a guide rod 809. The base 803 is mounted on the mounting plate 801, the electromagnet 805 is arranged on the mounting seat 804, and the mounting seat 804 is arranged in the base 803. The fine-tuning assembly 807 is connected to the mounting seat 804 and the mounting plate 801, and the locking assembly 808 is arranged above the mounting seat 804 through the guide rod 809. The self-locking mechanism 8 also includes mounting screws 802, a support plate 80 6 and a tightening spring 810, the mounting screw 802 is arranged at the corner position of the mounting plate 801, and the mounting plate 801 is fixed to the bottom plate 1 by the mounting screw 802, the support plate 806 is fixed to the mounting seat 804, the guide rod 809 runs through the support plate 806, the tightening spring 810 is sleeved on the guide rod 809, and the ends of the tightening spring 810 contact the support plate 806 and the locking assembly 808 respectively, the fine-tuning assembly 807 includes a fixing rod 8071, a screw hole 8072, an adjusting plate 8073, a U-shaped hole 8074, an adjusting screw 8075, a first limit The first limiting plate 8076 and the second limiting plate 8077 are provided with a screw hole 8072 on the fixing rod 8071, and the fixing rod 8071 is fixed on the mounting plate 801, the U-shaped hole 8074 is provided on the adjusting plate 8073, and the adjusting plate 8073 is fixed on both sides of the mounting seat 804, the first limiting plate 8076 and the second limiting plate 8077 are fixed on the adjusting screw 8075, and the adjusting screw 8075 passes through the U-shaped hole 8074, the first limiting plate 8076 and the second limiting plate 8077 contact the upper surface and the lower surface of the adjusting plate 8073 respectively, and the adjusting screw 80 The lower end of 75 is connected to the screw hole 8072, and the locking assembly 808 includes a lifting seat 8081, an assembly groove 8082, a threaded hole 8083, an iron block 8084, a fastener 8085, a connecting bolt 8086 and a fastening protrusion 8087. The assembly groove 8082 and the threaded hole 8083 are provided on the lifting seat 8081, the iron block 8084 is fixed to the lower end of the lifting seat 8081, the fastener 8085 is fixed to the assembly groove 8082 on the lifting seat 8081 by the connecting bolt 8086, and the fastening protrusion 8087 is arranged in the groove on the fastener 8085.

[0021] When installing the self-locking mechanism 8, the mounting plate 801 is fixed to the base plate 1 by installing the screws 802. When the linear module is running, the electromagnet 805 on the mounting seat 804 is energized to produce a magnetic attraction effect, and the iron block 8084 at the lower end of the lifting seat 8081 is adsorbed onto the electromagnet 805. During this process, the lifting seat 8081 descends along the support plate 806 through the guide rod 809 and compresses the holding spring 810. When the linear module stops, the electromagnet 805 is powered off and loses magnetism, and the iron block 8084 is no longer adsorbed on the electromagnet 805. Under the action of the holding spring 810, the lifting seat 8081 rises with the fastener 8085 until the fastening protrusion 8087 is tightly fitted with the light rod part of the screw rod 7, thereby locking the screw rod 7. After long-term use, the fastening protrusion 808 7 is worn out, at this time the staff can unscrew the connecting bolt 8086 in the threaded hole 8083, remove the fastener 8085 from the assembly groove 8082 for replacement, and when necessary, the relative height of the mounting seat 804 and the locking assembly 808 can be adjusted. When adjusting, the adjusting screw 8075 at the U-shaped hole 8074 is rotated, and the adjusting screw 8075 rotates and rises and falls in the screw hole 8072 on the fixing rod 8071. In this process, driven by the first limit plate 8076 and the second limit plate 8077, the adjusting plate 8073 rises and falls with the mounting seat 804, thereby changing the relative height of the locking assembly 808, and being able to change the force on the screw rod 7 during the final locking, thereby adjusting the locking effect, with a simple structure and excellent use effect.

[0022] The above content describes the use principle, features and beneficial effects of the utility model. Relevant personnel in the field can understand from the above content that the above content does not limit the utility model. The above embodiments and instructions describe the basic principles and features of the utility model. Under the premise of conforming to the concept of the utility model, the utility model can also be modified in various ways, and these modifications should fall within the scope of protection required by the utility model.

Claims

1. A linear module with a self-locking mechanism, comprising a base plate (1), a transmission box (2) is installed at one end of the base plate (1), and a servo motor (3) is provided on the transmission box (2), a slide rail (4) is provided on the base plate (1), and a movable plate (6) is provided on the slide rail (4) through a sliding frame (5), and a screw rod (7) is connected to the transmission box (2), characterized in that: A self-locking mechanism (8) is installed on the base plate (1), and the self-locking mechanism (8) comprises a mounting plate (801), a base (803), a mounting seat (804), an electromagnet (805), a fine-tuning assembly (807), a locking assembly (808) and a guide rod (809); the base (803) is installed on the mounting plate (801), the electromagnet (805) is arranged on the mounting seat (804), and the mounting seat (804) is arranged in the base (803); the fine-tuning assembly (807) is connected to the mounting seat (804) and the mounting plate (801); and the locking assembly (808) is arranged above the mounting seat (804) through the guide rod (809).

2. A linear module with a self-locking mechanism according to claim 1, characterized in that: An end plate (9) is fixed on the bottom plate (1), and a rotating seat (10) is installed on the end plate (9), and the end of the screw rod (7) is connected to the rotating seat (10).

3. A linear module with a self-locking mechanism according to claim 2, characterized in that: The self-locking mechanism (8) further comprises a mounting screw (802), a support plate (806) and a clamping spring (810); the mounting screw (802) is arranged at a corner position of the mounting plate (801), and the mounting plate (801) is fixed to the base plate (1) by means of the mounting screw (802); the support plate (806) is fixed to the mounting seat (804); the guide rod (809) passes through the support plate (806); the clamping spring (810) is sleeved on the guide rod (809), and the ends of the clamping spring (810) contact the support plate (806) and the locking assembly (808) respectively.

4. A linear module with a self-locking mechanism according to claim 3, characterized in that: The fine adjustment component (807) comprises a fixing rod (8071), a screw hole (8072), an adjustment plate (8073), a U-shaped hole (8074), an adjustment screw rod (8075), a first limit plate (8076) and a second limit plate (8077), wherein the screw hole (8072) is provided on the fixing rod (8071), and the fixing rod (8071) is fixed on the mounting plate (801), the U-shaped hole (8074) is provided on the adjustment plate (8073), and the adjustment screw rod (8075) is provided on the first limit plate (8076) and the second limit plate (8077). The section plate (8073) is fixed on both sides of the mounting seat (804), the first limit plate (8076) and the second limit plate (8077) are fixed on the adjusting screw (8075), and the adjusting screw (8075) passes through the U-shaped hole (8074), the first limit plate (8076) and the second limit plate (8077) respectively contact the upper surface and the lower surface of the adjusting plate (8073), and the lower end of the adjusting screw (8075) is connected to the screw hole (8072).

5. A linear module with a self-locking mechanism according to claim 4, characterized in that: The locking assembly (808) comprises a lifting seat (8081), an assembly groove (8082), a threaded hole (8083), an iron block (8084), a fastener (8085), a connecting bolt (8086) and a fastening protrusion (8087); the assembly groove (8082) and the threaded hole (8083) are provided on the lifting seat (8081); the iron block (8084) is fixed to the lower end of the lifting seat (8081); the fastener (8085) is fixed to the assembly groove (8082) on the lifting seat (8081) by means of the connecting bolt (8086); and the fastening protrusion (8087) is arranged in a groove on the fastener (8085).

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