Automatic clamping tool for pump cover of roots vacuum pump

Abstract

The utility model discloses an automatic clamping tool for a pump cover of a roots vacuum pump, which comprises a support base, a transmission worm wheel is rotatably clamped on the inner end face of the support base, and a support guide seat is fixedly arranged on the upper end face of the transmission worm wheel. According to the utility model, the first bidirectional screw rod is in threaded connection with the ball sliding seat, so that the two groups of fixing clamping seats are synchronously driven to clamp and limit the side part of the pump cover of the vacuum pump, and meanwhile, the two groups of clamping clamping plates can limit the front part and the rear part of the pump cover of the vacuum pump under the driving of the second bidirectional screw rod; according to the vacuum pump cover clamping and limiting device, the adaptability of equipment to clamping and limiting of vacuum pump covers of different models is effectively improved, meanwhile, after clamping is completed, a second servo motor can be connected with a transmission worm gear in a meshed mode through a transmission worm, then a supporting guide base is accurately driven to rotate, and therefore the angle of the vacuum pump cover can be accurately and finely adjusted after clamping is completed; and the adaptability of the equipment to machining of the pump cover of the vacuum pump is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump equipment, in particular to an automatic clamping tool for a pump cover of a Roots vacuum pump. Background Art

[0002] When producing and processing the vacuum pump cover, it is necessary to perform clamping and limiting operations on the vacuum pump cover to improve the stability of subsequent production and processing of the vacuum pump cover. The automatic clamping tooling of the vacuum pump cover can effectively improve the stability of the clamping of the vacuum pump cover, thereby improving production efficiency.

[0003] As disclosed in the utility model patent with publication number: CN216681292U, an automatic clamping tool for the pump cover of a Roots vacuum pump belongs to the technical field of pump cover processing equipment. It is characterized in that it includes a base, a positioning column, a side positioning device and an automatic clamping device. The positioning column is arranged on the upper side of the base. There are multiple positioning columns, and a space for accommodating the pump cover is formed between the multiple positioning columns. The top of each positioning column is provided with a lower positioning part. The side positioning device and the automatic clamping device are both arranged on the side of the space, and the clamping direction of the automatic clamping device is perpendicular to the positioning direction of the side positioning device. The automatic clamping tool for the pump cover of this Roots vacuum pump can accurately and conveniently position the pump cover, improve the positioning speed of the pump cover, and avoid obstruction to the processing of the surface to be processed of the pump cover. The processing of the surface to be processed can be completed by one clamping, which can eliminate the problem of inaccurate positioning due to the uneven reference surface of the pump cover.

[0004] Although the existing clamping tool can clamp the vacuum pump cover, the above clamping tool is not convenient for fine-tuning the angle of the vacuum pump cover that has been positioned according to needs. At the same time, most of the existing vacuum pump cover clamping work is a fixed mechanism, which reduces the adaptability of the equipment. Therefore, there is an urgent need for an automatic clamping tool for the Roots vacuum pump cover to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an automatic clamping tool for a pump cover of a Roots vacuum pump to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic clamping tool for a Roots vacuum pump cover, comprising a support base, a transmission worm gear is rotatably clamped on the inner end surface of the support base, and a support guide seat is fixedly arranged on the upper end surface of the transmission worm gear.

[0007] A second servo motor, wherein the second servo motor is fixedly arranged on the outer end surface of the support base, and a transmission worm is fixedly arranged at the output end of the second servo motor;

[0008] A first bidirectional screw rod is rotatably clamped on the inner end surface of the support guide seat, and two sets of clamping devices are threadedly connected to the inner end surface of the support guide seat through the first bidirectional screw rod. A first servo motor is arranged on the outer end surface of the support guide seat opposite to the first bidirectional screw rod.

[0009] Preferably, the clamping device includes a fixed base, a ball slide is fixedly arranged at the center of the lower end surface of the fixed base, and a reduction motor is fixedly arranged at the center of the rear end surface of the fixed base, an active bevel gear is fixedly arranged at the output end of the reduction motor, a second bidirectional screw rod is rotatably clamped at the center of the inner end surface of the fixed base, a driven bevel gear is arranged near the middle of the outer end surface of the second bidirectional screw rod, two groups of threaded slides are slidably connected to the inner end surface of the fixed base, and a clamping plate is arranged on the side end surface of the threaded slide.

[0010] Preferably, the active bevel gear is meshedly connected with the driven bevel gear, which can effectively improve the transmission stability of the equipment.

[0011] Preferably, the ball bearing slide is threadedly slidably connected to the inner end surface of the support guide seat through the first bidirectional screw, which can improve the stability of the subsequent fixing seat limiting the pump cover.

[0012] Preferably, the side end surface of the transmission worm is meshedly connected with the transmission worm wheel, which can effectively improve the accuracy and stability of the equipment in adjusting the angle of the support guide seat.

[0013] Preferably, the threaded slide is threadably connected to the inside of the fixed base through the second bidirectional screw. The second bidirectional screw can synchronously drive the two groups of threaded slides to perform centrifugal or centripetal thread sliding, which can effectively improve the adaptability and stability of the subsequent clamping card to limit the pump cover.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can synchronously drive two sets of fixed clamps to clamp and limit the side of the vacuum pump cover through the threaded connection of the first bidirectional screw and the ball slide, and at the same time, the two sets of clamping clamps can limit the front and rear of the vacuum pump cover driven by the second bidirectional screw, effectively improving the adaptability of the equipment to the clamping and limiting of vacuum pump covers of different models. At the same time, after clamping is completed, the second servo motor can be meshed with the transmission worm and the transmission worm wheel to accurately drive the support guide seat to rotate, so as to accurately fine-tune the angle of the vacuum pump cover after clamping, effectively improving the adaptability of the equipment to processing the vacuum pump cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0018] Figure 3 This is a disassembled diagram of the clamping device of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the clamping device of the utility model.

[0020] In the figure: 1-transmission worm, 2-clamping device, 3-first bidirectional screw, 4-first servo motor, 5-support guide seat, 6-second servo motor, 7-transmission worm wheel, 8-support base, 21-ball slide, 22-fixed card seat, 23-clamping card plate, 24-thread slide, 25-reduction motor, 26-active bevel gear, 27-driven bevel gear, 28-second bidirectional screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] See also Figure 1-4 The utility model provides an embodiment: an automatic clamping tool for a Roots vacuum pump cover, comprising a support base 8, a transmission worm gear 7 is rotatably clamped on the inner end surface of the support base 8, and a support guide seat 5 is fixedly arranged on the upper end surface of the transmission worm gear 7.

[0023] A second servo motor 6, the second servo motor 6 is fixedly arranged on the outer end surface of the support base 8, and a transmission worm 1 is fixedly arranged at the output end of the second servo motor 6;

[0024] The first bidirectional screw rod 3 is rotatably clamped on the inner end surface of the support guide seat 5, and the inner end surface of the support guide seat 5 is threadedly connected with two sets of clamping devices 2 through the first bidirectional screw rod 3, and the outer end surface of the support guide seat 5 is provided with a first servo motor 4 opposite to the first bidirectional screw rod 3.

[0025] The clamping device 2 includes a fixed base 22, a ball slide 21 is fixedly arranged at the center of the lower end surface of the fixed base 22, and a reduction motor 25 is fixedly arranged at the center of the rear end surface of the fixed base 22, and an active bevel gear 26 is fixedly arranged at the output end of the reduction motor 25. A second bidirectional screw rod 28 is rotatably clamped at the center of the inner end surface of the fixed base 22, and a driven bevel gear 27 is arranged near the middle of the outer end surface of the second bidirectional screw rod 28. Two groups of threaded slides 24 are slidably connected to the inner end surface of the fixed base 22, and a clamping plate 23 is arranged on the side end surface of the threaded slide 24.

[0026] The active bevel gear 26 is meshed with the driven bevel gear 27, which can effectively improve the transmission stability of the equipment.

[0027] The ball slide 21 is threadedly connected to the inner end surface of the support guide seat 5 through the first bidirectional screw 3, which can improve the stability of the subsequent fixed seat 22 limiting the pump cover.

[0028] The side end surface of the transmission worm 1 is meshed with the transmission worm wheel 7, which can effectively improve the accuracy and stability of the device in adjusting the angle of the support guide seat 5.

[0029] The threaded slide 24 is threadedly connected to the inside of the fixed clamp 22 through a second bidirectional screw 28. The second bidirectional screw 28 can synchronously drive the two groups of threaded slides 24 to perform centrifugal or centripetal thread sliding, which can effectively improve the adaptability and stability of the subsequent clamping plate 23 to limit the pump cover.

[0030] Working principle: During use, if it is necessary to clamp the vacuum pump cover, the user can position the vacuum pump cover to the upper part of the support guide seat 5 through the external loading device, and then start the first servo motor 4. At this time, the first servo motor 4 can drive the first bidirectional screw 3 to rotate, and the first bidirectional screw 3 can be connected with the two groups of ball slides 21 through threads, and then synchronously drive the two groups of fixed seats 22 to perform centripetal displacement, so as to clamp and limit the side of the vacuum pump cover. After the initial limit is completed, the reduction motor 25 can drive the active bevel gear 26 to rotate, and the active bevel gear 26 can drive the first bevel gear 27 through the driven bevel gear 27. The two bidirectional screw rods 28 rotate, so that the second bidirectional screw rod 28 can synchronously drive the two sets of clamping plates 23 to perform centripetal and centrifugal displacement through the threaded slide 24, thereby stably limiting the front and rear of the vacuum pump cover, effectively improving the stability of clamping the vacuum pump cover. During processing, if it is necessary to fine-tune the alignment angle of the vacuum pump cover, the second servo motor 6 can be started. At this time, the second servo motor 6 can drive the transmission worm gear 7 to rotate accurately through the transmission worm 1, so that the transmission worm gear 7 can drive the support guide seat 5 to rotate, and then the angle of the limited vacuum pump cover can be accurately fine-tuned.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping tool for a Roots vacuum pump cover, comprising a support base (8), a transmission worm gear (7) being rotatably clamped on the inner end surface of the support base (8), and a support guide seat (5) being fixedly arranged on the upper end surface of the transmission worm gear (7), characterized in that: a second servo motor (6), the second servo motor (6) being fixedly arranged on the outer end surface of the support base (8), and a transmission worm (1) being fixedly arranged at the output end of the second servo motor (6); A first bidirectional screw (3), the first bidirectional screw (3) is rotatably clamped on the inner end surface of the support guide seat (5), and two sets of clamping devices (2) are threadedly connected to the inner end surface of the support guide seat (5) through the first bidirectional screw (3), and a first servo motor (4) is arranged on the outer end surface of the support guide seat (5) opposite to the first bidirectional screw (3).

2. The automatic clamping device for a Roots vacuum pump cover according to claim 1 is characterized in that: The clamping device (2) comprises a fixed card seat (22), a ball slide seat (21) is fixedly arranged at the center of the lower end surface of the fixed card seat (22), and a reduction motor (25) is fixedly arranged at the center of the rear end surface of the fixed card seat (22), and an active bevel gear (26) is fixedly arranged at the output end of the reduction motor (25), a second bidirectional screw rod (28) is rotatably clamped at the center of the inner end surface of the fixed card seat (22), and a driven bevel gear (27) is arranged near the middle of the outer end surface of the second bidirectional screw rod (28), the inner end surface of the fixed card seat (22) is slidably connected with two groups of threaded slide seats (24), and a clamping card plate (23) is arranged at the side end surface of the threaded slide seat (24).

3. The automatic clamping device for a Roots vacuum pump cover according to claim 2 is characterized in that: The driving bevel gear (26) is meshingly connected with the driven bevel gear (27).

4. The automatic clamping device for a Roots vacuum pump cover according to claim 2 is characterized in that: The ball sliding seat (21) is threadedly connected to the inner end surface of the support guide seat (5) through the first bidirectional screw rod (3).

5. The automatic clamping device for a Roots vacuum pump cover according to claim 2 is characterized in that: The side end surface of the transmission worm (1) is meshingly connected with the transmission worm wheel (7).

6. The automatic clamping device for a Roots vacuum pump cover according to claim 2, characterized in that: The threaded sliding seat (24) is threadably connected to the interior of the fixed clamping seat (22) via the second bidirectional screw rod (28).

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