Automatic cable nut screwing device

Abstract

The utility model relates to the technical field of water pump assembly assembling equipment, in particular to an automatic cable nut screwing device. Comprising a mounting frame; a sliding table and a horizontal displacement assembly are arranged on the mounting frame; the horizontal displacement assembly is used for driving the sliding table to linearly move in a reciprocating mode in the set direction. The screwing device is arranged on the sliding table; the screwing device comprises a screwing head which is provided with a wrench opening, and the wrench opening can be arranged on the outer side of a cable nut to be assembled in a sleeving mode so as to execute screwing work; the driving source is used for driving the screwing head to rotate; the opening direction of the wrench opening is the same as the moving direction of the sliding table so that the wrench opening can be arranged on the outer side of a to-be-assembled cable nut in a sleeving mode. According to the technical scheme, the screwing head is arranged on the sliding table to execute the screwing action, and the wrench opening is formed in the screwing head. The screwing head can be arranged on the outer side of a cable nut of the water pump upper cover to be machined in a sleeving mode through movement of the sliding table, and the screwing action can be executed when the screwing head rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump component assembly equipment, in particular to an automatic cable nut screwing device. Background Art

[0002] With the continuous development of human society, as a common device, water pumps have also derived many different types according to different usage scenarios. For water pumps designed for some special working environments, due to the high requirements for the pump body sealing performance, cable nuts are selected to improve the sealing effect of the pump body. Since cable nuts have good waterproof, dustproof and anti-corrosion effects, and at the same time protect the cable joints and prevent the cables from being damaged by external forces, they are widely used in working environments such as outdoors or humid environments.

[0003] Since during the assembly of cable nuts, the cable needs to be pre-passed through the nut, the assembly needs to be completed with the cable passing through the nut. Currently, during the assembly of cable nuts, manual participation is still required to complete the tightening of the nuts. Manual operation not only has low efficiency, high defective rate, but also is prone to causing personal injuries to workers during the operation. This has led to the limitation of the production efficiency of special water pumps and the increase in production costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic cable nut screwing device to improve the problems of troublesome operation, low efficiency and inability to guarantee the equipment quality in the current manual screwing of the upper cover nuts of water pumps.

[0005] The purpose of the utility model is achieved as follows:

[0006] An automatic cable nut screwing device, comprising: a mounting frame;

[0007] A sliding table, which is movably arranged on the mounting frame;

[0008] A horizontal displacement assembly, which is arranged on the mounting frame; the horizontal displacement assembly is used to drive the sliding table to make reciprocating linear motion along a set direction;

[0009] A screwing device, which is arranged on the sliding table;

[0010] The screwing device includes:

[0011] A screwing head, on which a wrench opening is formed, and the wrench opening is sleeved outside the cable nut to be assembled to perform the screwing work;

[0012] A driving source, which is used to drive the screwing head to rotate;

[0013] The opening direction of the wrench opening is the same as the moving direction of the sliding table, so as to facilitate the wrench opening to be sleeved outside the cable nut to be assembled.

[0014] Preferably, the driving source is a motor, and a driving gear is sleeved on the driving shaft of the driving source;

[0015] A gear disk is connected above the screwing head, and an avoidance groove is formed on the gear disk. The opening direction of the avoidance groove is the same as the opening direction of the wrench opening;

[0016] The driving gear can drive the gear disk to rotate, so as to drive the screwing head to rotate.

[0017] Preferably, a bearing part is arranged at one end of the sliding table, and a plurality of support seats are arranged on the bearing part. The gear disk is rotatably arranged on the support seats;

[0018] An avoidance notch one is formed on the bearing part. The opening direction of the avoidance notch one is the same as the opening directions of the avoidance groove and the wrench opening.

[0019] Preferably, a convex ring part protrudes downward from the periphery of the gear disk, and a rack is formed on the outer side wall of the convex ring part;

[0020] A limiting roller is arranged on the support seat, and the limiting roller abuts against the inner side wall of the convex ring part; while ensuring that the gear disk can rotate, the horizontal displacement of the gear disk is restricted.

[0021] Preferably, a supporting roller is arranged on the support seat, and the supporting roller abuts against the lower end surface of the gear disk; enabling the gear disk to rotate on the support seat.

[0022] Preferably, the screwing head and the gear disk are connected by a connecting piece;

[0023] A through groove is formed on the connecting piece, and the upper end of the through groove is communicated with the avoidance groove;

[0024] The lower end of the through groove is communicated with the wrench opening.

[0025] Preferably, a groove is formed at the lower end of the gear disk, and the upper end of the connecting piece can be placed into the groove, and the upper end of the connecting piece is connected with the gear disk by a bolt;

[0026] The lower end of the connecting piece is connected with the screwing head by a bolt.

[0027] Preferably, the horizontal displacement assembly includes:

[0028] The first driving cylinder, the push rod of the first driving cylinder is connected to the sliding table;

[0029] The slide rail, the direction of its length is the same as the opening direction of the wrench opening;

[0030] The sliding seat, which is slidably arranged on the slide rail;

[0031] When the first driving cylinder works, through the cooperation of the slide rail and the sliding seat, the sliding table can only make reciprocating linear movement along the opening direction of the wrench opening.

[0032] Preferably, the horizontal displacement assembly and the sliding plate are arranged on the lifting plate, several positioning rods are arranged on the mounting frame, the lifting plate is penetrated on the positioning rods, and the lifting plate can move up and down along the positioning rods;

[0033] A height adjusting assembly is arranged below the lifting plate, and the height adjusting assembly can change the height of the lifting plate.

[0034] Preferably, a positioning convex part is formed on the lifting plate;

[0035] When the sliding seat is installed on the sliding plate, one side of the sliding seat can abut against the positioning convex part, so as to facilitate the installation of the sliding seat.

[0036] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0037] 1. In this technical solution, a screwing head is arranged on the sliding table to perform a screwing action, and a wrench opening is formed on the screwing head. Through the movement of the sliding table, the screwing head can be sleeved outside the cable nut of the upper cover of the water pump to be processed, and when the screwing head rotates, the screwing action can be performed.

[0038] 2. The screwing head is arranged on the sliding table, and gaps for the cable to pass through are formed on one side of the sliding table and the screwing head, so as to facilitate the screwing work on the upper cover nuts of different types of water pumps.

[0039] 3. The sliding table is arranged on the lifting plate, and the height adjusting assembly can adjust the position of the sliding table by lifting or lowering the lifting plate, and further adjust the height of the cover screwing head to adapt to the positions of the upper cover threads of water pumps of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic structural diagram of the present utility model;

[0041] Figure 2 is a front view of the present utility model;

[0042] Figure 3It is a schematic structural diagram of the screwing device of the present utility model after removing the protective case;

[0043] Figure 4 It is an exploded view of the screwing device of the present utility model after removing the protective case;

[0044] Figure 5 It is a cross-sectional view of the screwing device of the present utility model after removing the protective case;

[0045] Figure 6 is Figure 4 an enlarged view of part A in

[0046] Figure 7 is Figure 5 an enlarged view of part B in

[0047] Figure 8 is Figure 1 an enlarged view of part C in

[0048] Reference numerals:

[0049] 200, mounting bracket; 201, sliding table; 202, bearing part; 203, protective case; 204, first avoidance notch; 205, second avoidance notch;

[0050] 210, screwing head; 211, wrench opening; 212, gear disk; 213, avoidance groove; 214, convex ring part; 215, rack; 216, connecting piece; 217, through groove; 218, groove;

[0051] 220, drive source; 221, drive gear; 222, transmission gear;

[0052] 230, horizontal displacement assembly; 231, first drive cylinder; 232, push rod; 233, slide rail; 234, sliding seat;

[0053] 240, support seat; 241, support roller; 242, limit roller;

[0054] 250, height adjustment assembly; 251, lifting plate; 252, positioning rod; 253, second drive cylinder; 254, lead screw; 255, positioning projection part; 256, connecting rod; 257 connecting plate; 258, return device. Detailed implementation manners

[0055] The following are specific embodiments of the present utility model, and the technical solutions of the present utility model will be further described in conjunction with the accompanying drawings, but the present utility model is not limited to these embodiments.

[0056] As Figures 1 - 3 shown, an automatic cable nut screwing device includes:

[0057] Mounting bracket 200;

[0058] Sliding table 201, movably arranged on the mounting bracket 200;

[0059] Horizontal displacement assembly 230, arranged on the mounting bracket 200; the horizontal displacement assembly 230 is used to drive the sliding table 201 to make reciprocating linear movement along a set direction;

[0060] Screwing device, arranged on the sliding table 201, and the screwing device is used to perform the screwing action on the cable nut.

[0061] The screwing device includes:

[0062] Screwing head 210, on which a wrench opening 211 is formed, and the wrench opening 211 is sleeved on the outside of the nut to be assembled to perform the screwing work;

[0063] Drive source 220, which is used to drive the screwing head 210 to rotate, so as to achieve the purpose of tightening the cable nut.

[0064] The opening direction of the wrench opening 211 is the same as the moving direction of the sliding table 201, so that the wrench opening 211 can be sleeved on the outside of the nut to be assembled.

[0065] As Figures 1 - 3 shown, the drive source 220 is a motor, and a drive gear 221 is sleeved on the drive shaft of the drive source 220.

[0066] A gear disk 212 is connected above the screwing head 210, and an avoidance groove 213 is formed on the gear disk 212, and the opening direction of the avoidance groove 213 is the same as the opening direction of the wrench opening 211.

[0067] The drive gear 221 can drive the gear disk 212 to rotate, so as to drive the screwing head 210 to rotate.

[0068] In this embodiment, the drive gear 221 and the gear disk 212 are connected by a transmission gear 222. Since the size and mass of the gear disk 212 are both larger than those of the drive gear 221, when the drive gear 221 drives the gear disk 212 to rotate, the teeth in contact between the drive gear 221 and the gear disk 212 need to bear a large pressure, so that the teeth are easily worn. In this embodiment, by arranging two transmission gears 222, the drive gear 221 first drives the transmission gear 222 to rotate, and then drives the gear disk 212 to rotate, which is equivalent to increasing the contact area of the teeth of the drive gear 221 that occur simultaneously. And since the force required to drive the gear disk 212 remains unchanged, the pressure per unit area applied to the teeth of the drive gear 221 will also be reduced accordingly, so as to achieve the purpose of protecting the teeth of the drive gear 221.

[0069] Since the cable nut is usually tightened after the cable is threaded during assembly, how to avoid being affected by the protruding cable when tightening the cable nut is a problem that needs to be solved.

[0070] In this embodiment, the gear disk 212 and the screwing head 210 are coaxial, and the projection of the avoidance groove 213 on the horizontal plane should completely cover the wrench opening 211. In the process of the screwing head 210 tightening the cable nut, the cable protruding upward from the cable nut can protrude from the avoidance groove 213, and since the gear disk 212 and the screwing head 210 are coaxial, when the cable is at the bottom of the avoidance groove 213, it will not affect the rotation of the gear disk 212.

[0071] As Figures 1 - 4 shown, one end of the sliding table 201 is provided with a bearing part 202, and a plurality of support seats 240 are arranged on the bearing part 202. The gear disk 212 is rotatably arranged on the support seats 240. The bearing part 202 is used to make the gear disk 212 protrude from the sliding table 201, so as to ensure that there is enough space for the screwing head 210 to be connected to the gear disk 212 and perform the screwing action.

[0072] The bearing part 202 is provided with an avoidance notch one 204, and the opening direction of the avoidance notch one 204 is the same as the opening directions of the avoidance groove 213 and the wrench opening 211. The avoidance notch one 204 is used for the cable to pass through.

[0073] Furthermore, since a part of the gear disk 212 protrudes from the sliding table 201, the gear disk 212 will be exposed during operation. In order to prevent the teeth of the gear disk 212 from being damaged, a protective shell 203 is sleeved outside the screwing device. The protective shell 203 is provided with an avoidance notch two 205, and the projection of the avoidance notch two 205 on the horizontal plane should cover the projection of the wrench opening 211 on the horizontal plane.

[0074] Specifically as Figures 4 - 7 shown, a convex ring part 214 protrudes downward from the periphery of the gear disk 212, and a rack 215 is formed on the outer side wall of the convex ring part 214.

[0075] In this embodiment, a total of five support seats 240 are provided, and limiting rollers 242 are arranged on the support seats 240.

[0076] And the support seats 240 are arranged in a ring shape. When the gear disk 212 is arranged on the support seats 240, the limiting rollers 242 will abut against the inner side walls of different positions of the convex ring part 214. While ensuring that the gear disk 212 can rotate on the support seats 240, the limiting rollers 242 at different positions will jointly limit the horizontal displacement of the gear disk 212, so as to ensure that the gear disk 212 can rotate stably at the designed position and drive the screwing head 210 to perform the screwing action.

[0077] Further, a support roller 241 is provided on the support base 240, and the support roller 241 abuts against the lower end surface of the gear disk 212, enabling the gear disk 212 to rotate on the support base 240.

[0078] As Figures 1 - 5 shown, the screwing head 210 and the gear disk 212 are connected by a connecting member 216.

[0079] A through groove 217 is formed on the connecting member 216. The upper end of the through groove 217 is connected to the avoidance groove 213, and the lower end of the through groove 217 communicates with the wrench opening 211.

[0080] Due to the provision of the connecting member 216, the distance between the screwing head 210 and the gear disk 212 is increased. The through groove 217 is used to provide sufficient space for the cable to pass through. By increasing the distance between the wrench opening 211 and the avoidance groove 213, the position of the cable can be better restricted, and the inclination angle of the cable can be reduced.

[0081] Specifically as Figure 7 shown, a groove 218 is formed at the lower end of the gear disk 212. The upper end of the connecting member 216 can be placed into the groove 218, and the upper end of the connecting member 216 is connected to the gear disk 212 by a bolt. The groove 218 can facilitate the determination of the position of the groove 218, thereby facilitating the connection of the connecting member 216 and the gear disk 212 by a bolt.

[0082] The lower end of the connecting member 216 is connected to the screwing head 210 by a bolt.

[0083] As Figures 1 - 8 shown, the horizontal displacement assembly 230 includes:

[0084] A first driving cylinder 231, and a push rod 232 of the first driving cylinder 231 is connected to the sliding table 201;

[0085] A slide rail 233, the length direction of which is the same as the opening direction of the wrench opening 211;

[0086] A sliding seat 234, which is slidably arranged on the slide rail 233;

[0087] When the first driving cylinder 231 works, through the cooperation of the slide rail 233 and the sliding seat 234, the sliding table 201 can only make a reciprocating linear movement along the opening direction of the wrench opening 211, so as to facilitate the wrench opening 211 to be sleeved outside the cable nut.

[0088] As Figures 1 - 8As shown, the horizontal displacement assembly 230 and the sliding table 201 are arranged on the lifting plate 251. A plurality of positioning rods 252 are arranged on the mounting frame 200. The lifting plate 251 is threaded through the positioning rods 252, and the lifting plate 251 can move up and down along the positioning rods 252.

[0089] A height adjustment assembly 250 is arranged below the lifting plate 251. The height adjustment assembly 250 can change the height of the lifting plate 251, and thus can adjust the height of the screwing head 210, facilitating the screwing head 210 to match the positions of the cable bolts on workpieces of different sizes.

[0090] In this embodiment, the height adjustment assembly 250 includes a second driving cylinder 253 and a lead screw 254. The lower end of the lead screw 254 is rotatably connected to the second driving cylinder 253, and the upper end of the lead screw 254 is rotatably fixed on the mounting frame 200.

[0091] A connecting rod 256 is connected to the lower end of the lifting plate 251. A connecting plate 257 is connected to the bottom end of the connecting rod 256. A return device 258 is arranged on the connecting plate 257. The lead screw 254 is threaded through the return device 258.

[0092] When the second driving cylinder 253 drives the lead screw 254 to rotate, the connecting plate 257 can be driven to move up and down along the lead screw 254 through the return device 258, thereby driving the lifting plate 251 to move up and down.

[0093] As Figures 1 - 8 shown, a positioning convex portion 255 is formed on the lifting plate 251;

[0094] When the sliding seat 234 is installed on the sliding table 201, one side of the sliding seat 234 can abut against the positioning convex portion 255, facilitating the installation of the sliding seat 234.

[0095] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0096] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it can also be indirectly connected to the other element through an intermediate element.

[0097] In addition, in this application, the descriptions involving "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. An automatic cable nut tightening device, characterized in that: include: Mounting frame (200); A sliding platform (201) movably arranged on the mounting frame (200); A horizontal displacement assembly (230) is arranged on the mounting frame (200); the horizontal displacement assembly (230) is used to drive the sliding platform (201) to perform reciprocating linear movement along a set direction; A screwing device, which is arranged on the sliding platform (201); The screwing device comprises: A screwing head (210) having a wrench opening (211) formed thereon, wherein the wrench opening (211) is sleeved on the outer side of the cable nut to be assembled to perform a screwing operation; A driving source (220) for driving the screwing head (210) to rotate; The opening direction of the wrench opening (211) is the same as the moving direction of the sliding platform (201), so that the wrench opening (211) can be sleeved on the outside of the cable nut to be assembled.

2. The automatic cable nut tightening device according to claim 1, characterized in that: The driving source (220) is a motor, and a driving gear (221) is sleeved on a driving shaft of the driving source (220); A gear plate (212) is connected above the screwing head (210), and a avoidance groove (213) is formed on the gear plate (212), and the opening direction of the avoidance groove (213) is the same as the opening direction of the wrench opening (211); The driving gear (221) can drive the gear plate (212) to rotate, thereby driving the screwing head (210) to rotate.

3. The automatic cable nut tightening device according to claim 2, characterized in that: A bearing portion (202) is provided at one end of the sliding platform (201), a plurality of support seats (240) are provided on the bearing portion (202), and the gear plate (212) is rotatably provided on the support seat (240); The bearing portion (202) is provided with an avoidance notch (204), and the opening direction of the avoidance notch (204) is the same as the opening direction of the avoidance groove (213) and the wrench opening (211).

4. The automatic cable nut tightening device according to claim 3, characterized in that: The periphery of the gear plate (212) protrudes downward to form a convex ring portion (214), and the outer side wall of the convex ring portion (214) is formed with a rack (215); A limiting roller (242) is provided on the support seat (240), and the limiting roller (242) abuts against the inner wall of the convex ring portion (214); while ensuring that the gear plate (212) can rotate, the gear plate (212) is limited from moving in a horizontal direction.

5. The automatic cable nut tightening device according to claim 3, characterized in that: A support roller (241) is provided on the support seat (240), and the support roller (241) abuts against the lower end surface of the gear plate (212), so that the gear plate (212) can rotate on the support seat (240).

6. An automatic cable nut tightening device according to any one of claims 2 to 5, characterized in that: The screwing head (210) and the gear plate (212) are connected via a connecting piece (216); A through groove (217) is formed on the connecting piece (216), and the upper end of the through groove (217) is connected to the avoidance groove (213); The lower end of the through groove (217) is communicated with the wrench opening (211).

7. The automatic cable nut tightening device according to claim 6, characterized in that: The lower end of the gear plate (212) is formed with a groove (218), the upper end of the connecting member (216) can be placed in the groove (218), and the upper end of the connecting member (216) is connected to the gear plate (212) by means of bolts; The lower end of the connecting member (216) is connected to the screwing head (210) via a bolt.

8. An automatic cable nut tightening device according to claim 1 or 7, characterized in that: The horizontal shifting assembly (230) comprises: A driving cylinder (231), wherein a push rod (232) of the driving cylinder (231) is connected to the sliding platform (201); The slide rail (233) has a length direction which is the same as the opening direction of the wrench opening (211); A sliding seat (234) slidably disposed on the slide rail (233); When the driving cylinder (231) is working, the slide rail (233) and the sliding seat (234) cooperate to enable the sliding platform (201) to move back and forth linearly only along the opening direction of the wrench opening (211).

9. The automatic cable nut tightening device according to claim 8, characterized in that: The horizontal shifting assembly (230) and the sliding platform (201) are arranged on a lifting plate (251); a plurality of positioning rods (252) are arranged on the mounting frame (200); the lifting plate (251) is passed through the positioning rods (252), and the lifting plate (251) can move up and down along the positioning rods (252); A height adjustment component (250) is provided below the lifting plate (251), and the height adjustment component (250) is capable of changing the height of the lifting plate (251).

10. The automatic cable nut tightening device according to claim 9, characterized in that: The lifting plate (251) is formed with a positioning protrusion (255); When the sliding seat (234) is installed on the sliding platform (201), one side of the sliding seat (234) can abut against the positioning protrusion (255) to facilitate the installation of the sliding seat (234).

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