Thrust device capable of switching multiple modes

Abstract

The utility model discloses a multi-mode switching thrust device which comprises a base, and a rotating support rotating around the axis of the base is installed on the top of the base. The device further comprises two thrust pieces, one thrust piece is fixedly installed on the rotating support, and the other thrust piece is fixedly installed on the base. And a driving motor for controlling the two thrust pieces to operate is further mounted in the middle of the base. The device can adapt to linear stroke feeding, the included angle of the advancing routes of the two welding guns can be adjusted according to needs, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust devices, in particular to a multi-mode switching thrust device. Background Art

[0002] There is a Chinese patent with the existing announcement number CN211951356U, which discloses a high-thrust actuator that can reciprocate at both ends. The device consists of a support plate, a guide rail, a movable block, a movable block bracket, a connecting rod, a fixing bolt, a roller planet, a hollow sleeve, a bearing and a driving electric device. The two sides of the connecting rod can be connected to a plunger-type high-pressure cylinder, a push plate or an electric welding gun. The stroke at both ends of the device remains consistent, which can ensure that the welding efficiency is increased by 50% and the uniformity of the welding process.

[0003] However, the adjustment of the two connecting rods in the above-mentioned patent is relatively simple. If welding guns are installed on the connecting rods at both ends, and the product to be welded has two welds with a certain angle between them, the above-mentioned patent cannot quickly weld the two angled welds, so the universality is biased; in addition, when the connecting rod is fully extended out of the hollow sleeve and the connecting rod is fully retracted into the hollow sleeve, these two states are the maximum and minimum values ​​of the welding gun's travel route, and its overall telescopic amount is relatively small. Utility Model Content

[0004] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a multi-mode switching thrust device, which can not only adapt to the feeding of linear stroke, but also adjust the angle between the travel paths of the two welding guns as needed, thereby improving the versatility of the device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-mode switchable thrust device comprises a base, a rotating bracket rotating around the base axis is installed on the top of the base; it also comprises two thrust pieces, one of which is fixedly installed on the rotating bracket, and the other is fixedly installed on the base; a driving motor for controlling the operation of the two thrust pieces is also installed in the middle of the base.

[0007] Preferably, the thrust member includes a connecting seat, the connecting seat is provided with an internal threaded hole 1, the internal threaded hole 1 is internally threadedly connected to a sleeve, the sleeve is provided with an internal threaded hole 2, the internal threaded hole 2 is internally threadedly connected to a screw, and a brake member for limiting the rotation of the screw is installed on the connecting seat; the drive motor and the sleeve are connected through a transmission mechanism.

[0008] Preferably, a sliding hole is provided on the connecting seat, and the braking member includes a connecting tube slidably connected in the sliding hole, a connecting rod is slidably connected in the connecting tube, a connecting block is fixedly connected to the end of the connecting rod, and the connecting block is fixedly connected to the screw rod.

[0009] Preferably, the transmission mechanism includes a driving bevel gear installed at the end of the driving motor shaft. A driving rod is rotatably connected to the connecting seat, and a driven bevel gear meshed with the driving bevel gear is fixedly connected to the end of the driving rod. A limiting sliding groove is axially formed in the driving rod. A driven gear is coaxially fixedly connected to the sleeve. A driving gear is coaxially slidably connected to the driving rod. A limiting pin block is fixedly connected inside the driving gear, and the limiting pin block is slidably arranged in the limiting sliding groove. A shaft sleeve is fixedly connected to the side of the driving gear. Further included is a follower plate, and two bearings are installed on the follower plate. The inner ring of one bearing is coaxially fixedly connected to the sleeve, and the other bearing is coaxially fixedly connected to the shaft sleeve.

[0010] Preferably, an adjusting groove with an inverted T-shaped cross-section is formed in the base. The adjusting groove is circular as a whole. The rotating bracket includes a support plate and a slider with an inverted T-shaped cross-section fixedly connected to the bottom of the support plate. The slider is slidably matched with the adjusting groove, and a locking bolt is installed on the support plate.

[0011] Preferably, there are at least two adjusting grooves.

[0012] Preferably, scale lines are provided on the base.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Overall, in this application, the rotating bracket can be used to control the two thrust members to reach different included angles so as to adapt to the welding of welds with different included angles, improving the versatility of the device. By setting the thrust member into a three-section type of connecting seat, sleeve, and screw rod, and using the driving motor to drive the two thrust members, while the sleeve extends out of the first internal thread hole of the connecting seat, the screw rod also extends out of the second internal thread hole of the sleeve. This can not only increase the overall telescopic amount of the thrust member but also improve the telescopic adjustment rate of the thrust member. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic sectional view of the overall structure of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged schematic view of the structure at A in

[0018] Figure 4 is Figure 2 an enlarged schematic view of the structure at B in

[0019] Figure 5 is a schematic diagram of the thrust member and the transmission mechanism of the present utility model;

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0021] In the figure: 1. base; 11. adjustment slot; 2. rotating bracket; 21. support plate; 22. slider; 23. locking bolt; 3. thrust piece; 31. connecting seat; 311. sliding hole; 32. internal threaded hole 1; 33. sleeve; 34. internal threaded hole 2; 35. screw; 4. driving motor; 5. brake; 51. connecting pipe; 52. connecting rod; 53. connecting block; 61. driving bevel gear; 62. driving rod; 621. limiting slide groove; 63. driven bevel gear; 64. driven gear; 65. driving gear; 66. limiting pin block; 67. bushing; 68. follower plate; 69. bearing; 7. scale line; 8. welding gun. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to Figure 1 - Figure 6 The present embodiment provides a multi-mode switchable thrust device, including a base 1, on the top of which is mounted a rotating bracket 2 that rotates around the axis of the base 1; it also includes two thrust pieces 3, one of which is fixedly mounted on the rotating bracket 2, and the other is fixedly mounted on the base 1; a driving motor 4 that controls the operation of the two thrust pieces 3 is also mounted in the middle of the base 1.

[0024] Specifically, the thrust member 3 includes a connecting seat 31, an internal threaded hole 32 is opened in the connecting seat 31, a sleeve 33 is internally threadedly connected to the internal threaded hole 32, an internal threaded hole 34 is opened in the sleeve 33, and a screw 35 is internally threadedly connected to the internal threaded hole 34, and a brake member 5 for limiting the rotation of the screw 35 is installed on the connecting seat 31; and the driving motor 4 is connected to the sleeve 33 through a transmission mechanism.

[0025] Furthermore, a sliding hole 311 is opened on the connecting seat 31, and the brake member 5 includes a connecting tube 51 slidably connected in the sliding hole 311, a connecting rod 52 is slidably connected in the connecting tube 51, a connecting block 53 is fixedly connected to the end of the connecting rod 52, and the connecting block 53 is fixedly connected to the screw 35, so that the external welding gun 8 can be installed on the axial end of the screw 35.

[0026] The following is a further introduction in combination with specific usage scenarios. When welding with the welding torch 8, if the two weld seams have an included angle, it is necessary to adjust the positions of the two thrust members 3 at this time so that the traveling route of the welding torch 8 just matches the two weld seams. It should be noted here that the traveling route of the welding torch 8 coincides with the axis of the sleeve 33, and this application is only suitable for straight weld seams. The specific operation process is as follows: Align the traveling route of the thrust member 3 fixed on the base 1 with one of the weld seams, and then adjust the rotating bracket 2 so that the rotating bracket 2 rotates around the axis of the base 1 until the traveling route of the welding torch 8 on the thrust member 3 on the rotating bracket 2 coincides with the other weld seam, and keep the position of the rotating bracket 2 unchanged. Then, the driving motor 4 can be started, and under the cooperation of the driving motor 4 and the transmission mechanism, the sleeve 33 is controlled to rotate. Since the sleeve 33 is threadedly connected to the first internal thread hole 32 of the connecting seat 31, and the screw 35 is threadedly connected to the second internal thread hole 34 of the sleeve 33, and the position of the connecting seat 31 is fixed on the base 1 (the other is fixed on the rotating bracket 2), and the screw 35 cannot rotate under the action of the braking member 5. Therefore, when the sleeve 33 rotates, the sleeve 33 will extend. Therefore, when the sleeve 33 rotates, it will have relative spiral rotation with both the connecting seat 31 and the screw 35, so that the sleeve 33 gradually extends out of the first internal thread hole 32 of the connecting seat 31, and the screw 35 extends out of the second internal thread hole 34 of the sleeve 33. In this way, the overall length of the thrust member 3 can be quickly adjusted, and the rate of length adjustment of the thrust member 3 is improved.

[0027] Overall, in this application, the rotating bracket 2 can be used to control the two thrust members 3 to achieve different included angles, thereby adapting to the welding of weld seams with different included angles, improving the versatility of the device; and by setting the thrust member 3 into a three-section type of connecting seat 31, sleeve 33, and screw 35, and using the driving motor 4 to drive the two thrust members 3, when the sleeve 33 extends out of the first internal thread hole 32 of the connecting seat 31, the screw 35 also extends out of the second internal thread hole 34 of the sleeve 33. In this way, not only can the overall telescopic amount of the thrust member 3 be increased, but also the telescopic adjustment rate of the thrust member 3 can be increased.

[0028] Specifically, further refer to Figure 1 - Figure 6, The transmission mechanism includes a driving bevel gear 61 mounted on the shaft end of the driving motor 4. A driving rod 62 is rotatably connected to the connecting seat 31. A driven bevel gear 63 meshing with the driving bevel gear 61 is fixedly connected to the shaft end of the driving rod 62. One end of the driving rod away from the driven bevel gear extends out of the connecting seat 31, and the length of the driving rod extending out of the connecting seat should not be less than the length of the sleeve. A limiting chute 621 is axially formed in the driving rod 62. A driven gear 64 is coaxially and fixedly connected to the sleeve 33. A driving gear 65 is coaxially slidably connected to the driving rod 62. A limiting pin block 66 is fixedly connected inside the driving gear 65, and the limiting pin block 66 is slidably arranged in the limiting chute 621. A shaft sleeve 67 is fixedly connected to the side of the driving gear 65. In addition, a follower plate 68 is included. Two bearings 69 are mounted on the follower plate 68. The inner ring of one of the bearings 69 is coaxially and fixedly connected to the sleeve 33, and the inner ring of the other bearing 69 is coaxially and fixedly connected to the shaft sleeve 67.

[0029] Combined with the specific usage scenario, when using the thrust device, after starting the driving motor 4, the driving motor 4 drives the driving bevel gear 61 to rotate. Then, under the meshing of the driving bevel gear 61 and the driven bevel gear 63, the driving rod 62 is driven to rotate. And under the cooperation of the limiting pin block 66 and the limiting chute 621, the driving gear 65 is further driven to rotate. And under the meshing cooperation of the driving gear 65 and the driven gear 64, the sleeve 33 rotates. Since the connecting seat 31 is fixed to the base 1 (the other is fixed to the rotating bracket 2), and the braking member 5 restricts the rotation of the screw rod 35, when the sleeve 33 rotates, it undergoes relative spiral rotation with both the connecting seat 31 and the screw rod 35. Thus, the sleeve 33 gradually extends out of the internal thread hole one 32 of the connecting seat 31, and the screw rod 35 extends out of the internal thread hole two 34 of the sleeve 33. In this way, the overall length of the thrust member 3 can be quickly adjusted, improving the adjustment rate of the length of the thrust member 3. Here, an introduction to the setting of the follower plate 68 is needed. Since one of the two bearings 69 on the follower plate 68 is mounted on the sleeve 33 and the other is mounted on the shaft sleeve 67 of the driving gear 65, when the relative position of the sleeve 33 to the connecting seat 31 changes, the follower plate 68 will also move accordingly, so that the driving gear 65 and the driven gear 64 always remain in a meshing state, and the rotation of the driving rod 62 can always drive the sleeve 33 to rotate.

[0030] Specifically, referring to Figure 1 - Figure 5 , an adjustment groove 11 with an inverted T-shaped cross-section is formed in the base 1. The adjustment groove 11 is overall circular, and the center of the circle is located on the axis of the base 1. The rotating bracket 2 includes a support plate 21 and a slider 22 with an inverted T-shaped cross-section fixedly connected to the bottom of the support plate 21. The slider 22 is slidably engaged with the adjustment groove 11. A locking bolt 23 is mounted on the support plate 21. Further, there are at least two adjustment grooves 11.

[0031] Combined with a specific usage scenario, when it is necessary to adjust the position of the thrust member 3 on the rotating bracket 2, first loosen the locking bolt 23, and then the position of the rotating bracket 2 can be adjusted. Since the center of the circular adjustment groove 11 is located on the axis of the base 1, and the adjustment groove 11 and the slider 22 are in an inverted T shape, the installation of the rotating bracket 2 and the thrust member 3 mounted thereon on the base 1 is relatively stable, providing stable support for the adjustment of the thrust member 3. After adjusting the included angle between the two thrust members 3, tighten the locking bolt 23 to fix the position of the rotating bracket 2 and the thrust member 3 mounted above it. The use of two adjustment grooves 11 can increase the mating area between the rotating bracket 2 and the base 1, thereby ensuring that the position of the rotating bracket 2 is more stable and improving the stability of the device.

[0032] Referring to Figure 1 , as a specific implementation manner of the embodiment of the present application, scale lines 7 are provided on the base 1.

[0033] Combined with a specific usage scenario, when it is necessary to adjust the included angle between the two thrust members 3, the included angle between the two thrust members 3 can be conveniently understood through the scale lines 7, and then the included angle between the two thrust members 3 can be accurately and quickly adjusted.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A multi-mode switchable thrust device, comprising a base (1), characterized in that: The base (1) has a rotating bracket (2) mounted on the top thereof and rotating about the axis of the base (1). The base (1) also includes two thrust members (3), one of which is fixedly mounted on the rotating bracket (2) and the other of which is fixedly mounted on the base (1). A driving motor (4) for controlling the operation of the two thrust members (3) is also mounted in the middle of the base (1).

2. A multi-mode switching thrust device according to claim 1, characterized in that: The thrust member (3) comprises a connecting seat (31), the connecting seat (31) is provided with an internal threaded hole (32), the internal threaded hole (32) is internally threadedly connected to a sleeve (33), the sleeve (33) is provided with an internal threaded hole (34), the internal threaded hole (34) is internally threadedly connected to a screw (35), and a brake member (5) for limiting the rotation of the screw (35) is mounted on the connecting seat (31); the drive motor (4) is connected to the sleeve (33) through a transmission mechanism.

3. A multi-mode switching thrust device according to claim 2, characterized in that: The connection seat (31) is provided with a sliding hole (311), the brake member (5) comprises a connection tube (51) slidably connected in the sliding hole (311), a connection rod (52) is slidably connected in the connection tube (51), a connection block (53) is fixedly connected to the end of the connection rod (52), and the connection block (53) is fixedly connected to the screw rod (35).

4. A multi-mode switching thrust device according to claim 3, characterized in that: The transmission mechanism comprises a driving bevel gear (61) mounted on the shaft end of the driving motor (4); a driving rod (62) is rotatably connected to the connecting seat (31); a driven bevel gear (63) meshingly connected to the driving bevel gear (61) is fixedly connected to the shaft end of the driving rod (62); a limiting sliding groove (621) is provided on the driving rod (62) along the axial direction; a driven gear (64) is coaxially fixedly connected to the sleeve (33); and a driven gear (64) is coaxially slidably connected to the driving rod (62). A driving gear (65), wherein a limiting pin block (66) is fixedly connected inside the driving gear (65), and the limiting pin block (66) is slidably arranged in a limiting sliding groove (621); a shaft sleeve (67) is fixedly connected to a side surface of the driving gear (65); and further comprising a follower plate (68), wherein two bearings (69) are mounted on the follower plate (68), wherein an inner ring of one bearing (69) is coaxially fixedly connected to a sleeve (33), and an inner ring of the other bearing (69) is coaxially fixedly connected to the shaft sleeve (67).

5. A multi-mode switchable thrust device according to claim 1, characterized in that: The base (1) is provided with an adjusting groove (11) having an inverted T-shaped cross section, and the adjusting groove (11) is generally circular. The rotating bracket (2) comprises a supporting plate (21) and a sliding block (22) having an inverted T-shaped cross section fixed to the bottom of the supporting plate (21), the sliding block (22) being slidably matched with the adjusting groove (11), and a locking bolt (23) is mounted on the supporting plate (21).

6. A multi-mode switchable thrust device according to claim 5, characterized in that: There are at least two adjustment slots (11).

7. A multi-mode switchable thrust device according to claim 1, characterized in that: The base (1) is provided with scale lines (7).

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