Cold pressing device for automobile compression heat pump production

Abstract

The utility model belongs to the technical field of automobile compression heat pump production, and particularly relates to a cold pressing device for automobile compression heat pump production, which comprises a base and supporting rods fixedly connected to four corners of the upper side of the base. According to the cold pressing device for production of the automobile compression heat pump, when the automobile compression heat pump is subjected to cold pressing, a raw material plate is firstly placed on the lower cold pressing plate, then the telescopic piece is started, an output shaft of the telescopic piece stretches out to drive the upper cold pressing plate to move downwards to the raw material plate for cold pressing, and after a pump shell is driven to be subjected to cold pressing forming, the telescopic piece is started again to pull up the upper cold pressing plate; then, an output shaft of a motor is started to rotate to drive a second threaded rod to rotate, so that a moving plate at the outer end moves upwards along the outer side of a limiting rod, an ejector rod above the moving plate is driven to move upwards along a penetrating hole and an ejection hole until the upper end of the ejector rod moves upwards to make contact with the lower end of the pump shell formed in the lower cold pressing plate through cold pressing, and then the pump shell is ejected out; and then the formed pump shell is taken out to be subjected to next-time cold press forming.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile compression heat pump production, in particular to a cold pressure device for automobile compression heat pump production. Background Art

[0002] In recent years, people have become more and more aware of environmental protection, so the requirements for refrigerants used in automotive air conditioners are getting higher and higher. Among them, carbon dioxide (R744) is a natural refrigerant that is very good to the environment. As a refrigerant, R744 has the characteristics of high operating pressure and low energy efficiency. When R744 is used as a compression heat pump refrigerant, it has the advantages of high energy efficiency ratio and high outlet water temperature, so R744 has been widely used. When producing compression heat pumps, a cold pressing device is required to cold press the pump shell.

[0003] However, in existing cold pressing devices, after the cold pressing is completed, the workpiece after the cold pressing will generally be attached to the work surface, which makes it inconvenient to pick up and lift, affects the work efficiency, and affects the usability of the device.

[0004] For example, the automatic cold pressing device for multi-layer boards disclosed in Chinese patent CN211806698U is provided with a motor, a first slide rail, a first slider, a rising plate, a slide rod, a rotating rod, a sleeve rod, a gear rod, a second fixed rod, a gear and a top plate. Through this design, the gear is rotated by the rotation of the motor to rotate, so that the gear rod is tightened inwardly, and the sleeve rod is driven by the second fixed rod to slide inwardly on the slide rod, and the rotating rod is driven through the action of the rotating shaft to make the rising plate rise under the action of the first slide rail and the first slider, and the plate is lifted up by the action of the top plate for picking up and lifting, thereby improving the usability of the device and avoiding the problem that after the cold pressing is completed, the cold pressed plate will mostly fit with the work surface, resulting in inconvenience in picking up and lifting, which affects the work efficiency and the usability of the device.

[0005] However, the cold pressing plate on the cold pressing device is not easy to disassemble, so it is not convenient to cold press the pump body shells of different sizes.

[0006] For this reason, we urgently need to provide a cold pressing device for automobile compression heat pump production that is easy to disassemble and assemble. Utility Model Content

[0007] The utility model aims to provide a cold pressing device for producing automobile compression heat pumps, so as to solve the problem that the cold pressing plate on the cold pressing device proposed in the above background technology is not easy to disassemble, thereby making it inconvenient to cold press pump shells of different sizes.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cold pressing device for the production of automobile compression heat pumps, comprising a base and a support rod, wherein the support rod is fixedly connected to the four corners of the upper side of the base, the upper end of the support rod is fixedly connected to a top plate, and the inner and outer ends of the base are connected to a cold pressing mechanism, the cold pressing mechanism comprises a cold pressing unit and an ejection unit, the cold pressing unit is arranged at the upper end of the base, and the ejection unit is arranged inside the base.

[0009] The cold pressing unit includes a telescopic member, an upper cold pressing plate, a lower cold pressing plate, a fixing ring, a fixing plate, a first threaded rod and a fixing tube. The telescopic member is fixedly connected to the upper middle position of the top plate, the upper cold pressing plate is connected to the lower end of the output shaft of the telescopic member, the lower cold pressing plate is connected to the upper middle position of the base, the fixing ring is fixedly connected to the upper middle position of the upper cold pressing plate, the fixing plate is fixedly connected to the left and right lower ends of the lower cold pressing plate, the first threaded rod is fixedly connected to the left and right ends of the upper side of the base, and the fixing tube is connected to the outer end of the first threaded rod.

[0010] A further improvement is that a first threaded hole is provided at the middle position of the lower end of the output shaft of the telescopic member, a round hole is provided at the middle position of the front and rear ends of the interior of the fixing ring, and the outer side of the lower end of the output shaft of the telescopic member is slidably connected to the inner side of the fixing ring. Thus, after the lower end of the output shaft of the telescopic member is slid to the inner side of the fixing ring, a bolt is passed through the round hole of the fixing ring and then threadedly connected to the first threaded hole, so that the fixing ring can be fixed to the lower end of the output shaft of the telescopic member.

[0011] A further improvement is that through holes are provided at the front and rear ends of the fixing plate, an internal thread is provided on the inner side of the fixing tube, the outer side of the first threaded rod is slidably connected to the inner side of the through hole, the outer side of the first threaded rod is threadedly connected to the inner side of the fixing tube, and the lower side of the fixing tube abuts against the front and rear ends of the upper side of the fixing plate. Thus, after the lower cold press plate is placed in the middle position of the upper side of the base, and the through holes inside the fixing plates on the left and right sides pass through the first threaded rod, the fixing tube is threadedly connected to the outer side of the first threaded rod until the lower side of the fixing tube contacts the upper side of the fixing plate, so that the fixing plate can be fixed to the upper side of the base, and the lower cold press plate can be fixed to the upper side of the base at the same time.

[0012] A further improvement is that the ejection unit includes a motor, a second threaded rod, a bearing, a movable plate, a ejector rod and a limit rod, the motor is fixedly connected to the middle position of the inner bottom end of the base, the second threaded rod is fixedly connected to the upper end of the output shaft of the motor, the bearing is fixedly connected to the middle position of the inner upper end of the base, the movable plate is connected to the outer end of the second threaded rod, the ejector rod is fixedly connected to the upper left and right ends of the movable plate, and the limit rod is fixedly connected to the left and right ends of the inner side of the base.

[0013] A further improvement is that a limiting hole is provided at the middle position of the left and right ends of the movable plate, and the outer side of the limiting rod is slidably connected to the inner side of the limiting hole. Therefore, when the movable plate moves, it can only slide along the outer side of the limiting rod, thereby limiting the movement of the movable plate.

[0014] A further improvement is that a through hole is provided at the upper end of the base, ejection holes are provided at the left and right ends of the lower cold press plate, a second threaded hole is provided in the middle of the movable plate, the outer side of the second threaded rod is threadedly connected to the inner side of the second threaded hole, the outer side of the ejector rod is slidably connected to the inner side of the through hole and the ejection hole, and the outer side of the upper end of the second threaded rod is fixedly connected to the inner side of the bearing. Thus, after a cold press operation, the motor is started and its output shaft rotates to drive the second threaded rod to rotate, so that the outer movable plate moves up along the outer side of the limit rod, and then drives the ejector rod to move up along the through hole and the ejection hole, until the upper end of the ejector rod moves up to contact the lower end of the cold-pressed pump casing in the lower cold press plate, and then moves up to eject the formed part.

[0015] A further improvement is that a rubber pad is fixedly connected to the upper end of the push rod. When the push rod moves upward to eject the cold-pressed formed part, the rubber pad at the upper end of the push rod contacts the lower side of the cold-pressed formed part, thereby preventing the outer side of the formed pump housing from being scratched and damaged.

[0016] In summary, the present application discloses a cold pressing device for automobile compression heat pump production.

[0017] According to the technical solution, after the bolts in the fixing ring are taken out, the fixing ring can be removed from the lower end of the output shaft of the telescopic member, and the upper cold pressing plate can be removed at the same time. After the fixing tube is removed from the outer side of the first threaded rod, the fixing plate can be removed from the outer end of the first threaded rod, and the lower cold pressing plate can be removed from the base at the same time. Therefore, the cold pressing plates of the cold pressing device can be disassembled and assembled, so that different cold pressing plates can be replaced to perform cold pressing on pump casings of different specifications.

[0018] Furthermore, after a cold pressing operation, the motor is started and its output shaft rotates to drive the second threaded rod to rotate, so that the outer movable plate moves up along the outer side of the limit rod, and then drives the ejector rod to move up along the through hole and the ejection hole until the upper end of the ejector rod moves up to contact the lower end of the cold-pressed pump casing in the lower cold pressing plate, and then moves up to eject the formed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the top plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixing ring of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the lower cold pressing plate of the utility model;

[0024] Figure 6 for Figure 5 Enlarged view of point A.

[0025] In the figure: 1, base; 2, support rod; 3, top plate; 401, telescopic member; 402, upper cold pressing plate; 403, lower cold pressing plate; 404, fixing ring; 405, fixing plate; 406, first threaded rod; 407, fixing cylinder; 501, motor; 502, second threaded rod; 503, bearing; 504, moving plate; 505, top rod; 506, limit rod. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A cold pressing device for producing an automobile compression heat pump comprises a base 1 and a support rod 2. The support rod 2 is fixedly connected to the four corners of the upper side of the base 1. The upper end of the support rod 2 is fixedly connected to a top plate 3. The inner and outer ends of the base 1 are connected to a cold pressing mechanism. The cold pressing mechanism comprises a cold pressing unit and an ejection unit. The cold pressing unit is arranged at the upper end of the base 1, and the ejection unit is arranged inside the base 1.

[0030] The cold pressing unit includes a telescopic member 401, an upper cold pressing plate 402, a lower cold pressing plate 403, a fixing ring 404, a fixing plate 405, a first threaded rod 406 and a fixing cylinder 407. The telescopic member 401 is fixedly connected to the upper middle position of the top plate 3. The telescopic member 401 is a hydraulic cylinder. The upper cold pressing plate 402 is connected to the lower end of the output shaft of the telescopic member 401. The lower cold pressing plate 403 is connected to the upper middle position of the base 1. The fixing ring 404 is fixedly connected to the upper middle position of the upper cold pressing plate 402. A first threaded hole is provided in the middle position of the lower end of the output shaft of the telescopic member 401. A circular hole is provided in the middle position of the front and rear ends of the fixing ring 404. The outer side of the lower end of the output shaft of the telescopic member 401 is slidably connected to the inner side of the fixing ring 404. Therefore, after the lower end of the output shaft of the telescopic member 401 is slid to the inner side of the fixing ring 404 , a bolt is passed through the circular hole of the fixing ring 404 and then threadedly connected to the first threaded hole, so that the fixing ring 404 can be fixed to the lower end of the output shaft of the telescopic member 401 .

[0031] The fixing plate 405 is fixedly connected to the lower ends of the left and right sides of the lower cold pressing plate 403, the first threaded rod 406 is fixedly connected to the left and right ends of the upper side of the base 1, and the fixing cylinder 407 is connected to the outer end of the first threaded rod 406. Through holes are provided at the front and rear ends of the fixing plate 405, and the inner side of the fixing cylinder 407 is provided with internal threads. The outer side of the first threaded rod 406 is slidably connected to the inner side of the through hole, and the outer side of the first threaded rod 406 is threadedly connected to the inner side of the fixing cylinder 407. The lower side of the fixing cylinder 407 abuts against the front and rear ends of the upper side of the fixing plate 405. Thus, after the lower cold press plate 403 is placed in the middle position of the upper side of the base 1, and the through holes inside the fixing plates 405 on the left and right sides thereof pass through the first threaded rod 406, the fixing tube 407 is threadedly connected to the outer side of the first threaded rod 406 until the lower side of the fixing tube 407 contacts the upper side of the fixing plate 405, the fixing plate 405 can be fixed to the upper side of the base 1, and at the same time, the lower cold press plate 403 can be fixed to the upper side of the base 1.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment: the ejection unit includes a motor 501, a second threaded rod 502, a bearing 503, a movable plate 504, a push rod 505 and a limit rod 506, the motor 501 is fixedly connected to the middle position of the inner bottom end of the base 1, the second threaded rod 502 is fixedly connected to the upper end of the output shaft of the motor 501, the bearing 503 is fixedly connected to the middle position of the inner upper end of the base 1, the movable plate 504 is connected to the outer end of the second threaded rod 502, the push rod 505 is fixedly connected to the upper left and right ends of the movable plate 504, and the limit rod 506 is fixedly connected to the left and right ends of the inner side of the base 1. A limit hole is provided at the middle position of the left and right ends of the movable plate 504, and the outer side of the limit rod 506 is slidably connected to the inner side of the limit hole. Therefore, when the movable plate 504 moves, it can only slide along the outer side of the limit rod 506, thereby limiting the movement of the movable plate 504.

[0034] A through hole is provided at the upper end of the base 1, and ejection holes are provided at the left and right ends of the lower cold press plate 403, and a second threaded hole is provided at the middle position of the movable plate 504. The outer side of the second threaded rod 502 is threadedly connected to the inner side of the second threaded hole, and the outer side of the ejector rod 505 is slidably connected to the inner side of the through hole and the ejection hole, and the outer side of the upper end of the second threaded rod 502 is fixedly connected to the inner side of the bearing 503. Therefore, after a cold press operation, the motor 501 is started and its output shaft rotates to drive the second threaded rod 502 to rotate, so that the outer movable plate 504 moves up along the outer side of the limit rod 506, and then drives the ejector rod 505 to move up along the through hole and the ejection hole, until the upper end of the ejector rod 505 moves up to contact the lower end of the cold-pressed pump casing in the lower cold press plate 403, and then moves up to eject the formed part.

[0035] Embodiment three:

[0036] On the basis of the first embodiment: a rubber pad is fixedly connected to the upper end of the push rod 505. When the push rod 505 moves upward to eject the cold-pressed part, the rubber pad at the upper end of the push rod 505 contacts the lower side of the cold-pressed part, which can prevent the outer side of the formed pump housing from being scratched and damaged.

[0037] Working principle: When cold pressing the automobile compression heat pump, first place the raw material plate on the lower cold pressing plate 403, then start the telescopic member 401, and its output shaft extends to drive the upper cold pressing plate 402 to move down to the raw material plate for cold pressing. After the pump housing is cold-pressed, start the telescopic member 401 again to pull up the upper cold pressing plate 402, then start the motor 501 and rotate its output shaft to drive the second threaded rod 502 to rotate, so that the movable plate 504 at the outer end moves up along the outer side of the limiting rod 506, and drives the ejector rod 505 on the movable plate 504 to move up along the perforation and ejection hole, until the upper end of the ejector rod 505 moves up to contact the lower end of the cold-pressed pump housing in the lower cold pressing plate 403, and then ejects the pump housing, and then takes out the formed pump housing for the next cold pressing.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A cold pressing device for automobile compression heat pump production, comprising a base (1) and a support rod (2), wherein the support rod (2) is fixedly connected to the four corners of the upper side of the base (1), characterized in that: The upper end of the support rod (2) is fixedly connected to a top plate (3), and the inner and outer ends of the base (1) are connected to a cold pressing mechanism, wherein the cold pressing mechanism comprises a cold pressing unit and an ejection unit, wherein the cold pressing unit is arranged at the upper end of the base (1), and the ejection unit is arranged inside the base (1); The cold pressing unit comprises a telescopic member (401), an upper cold pressing plate (402), a lower cold pressing plate (403), a fixing ring (404), a fixing plate (405), a first threaded rod (406) and a fixing tube (407); the telescopic member (401) is fixedly connected to the middle position of the upper side of the top plate (3); the upper cold pressing plate (402) is connected to the lower end of the output shaft of the telescopic member (401); the lower cold pressing plate (403) is connected to the middle position of the upper side of the base (1); the fixing ring (404) is fixedly connected to the middle position of the upper side of the upper cold pressing plate (402); the fixing plate (405) is fixedly connected to the lower ends of the left and right sides of the lower cold pressing plate (403); the first threaded rod (406) is fixedly connected to the left and right ends of the upper side of the base (1); and the fixing tube (407) is connected to the outer end of the first threaded rod (406).

2. A cold pressing device for producing automobile compression heat pumps according to claim 1, characterized in that: A first threaded hole is provided in the middle of the lower end of the output shaft of the telescopic member (401), and a circular hole is provided in the middle of the front and rear ends of the fixing ring (404). The outer side of the lower end of the output shaft of the telescopic member (401) is slidably connected to the inner side of the fixing ring (404).

3. The cold pressing device for producing automobile compression heat pump according to claim 1, characterized in that: The fixing plate (405) has through holes at the front and rear ends, the fixing tube (407) has an internal thread on the inside, the outer side of the first threaded rod (406) is slidably connected to the inner side of the through holes, the outer side of the first threaded rod (406) is threadedly connected to the inner side of the fixing tube (407), and the lower side of the fixing tube (407) is in contact with the front and rear ends of the upper side of the fixing plate (405).

4. The cold pressing device for producing automobile compression heat pump according to claim 1, characterized in that: The ejection unit comprises a motor (501), a second threaded rod (502), a bearing (503), a movable plate (504), a push rod (505) and a limit rod (506); the motor (501) is fixedly connected to the middle position of the inner bottom end of the base (1); the second threaded rod (502) is fixedly connected to the upper end of the output shaft of the motor (501); the bearing (503) is fixedly connected to the middle position of the inner upper end of the base (1); the movable plate (504) is connected to the outer end of the second threaded rod (502); the push rod (505) is fixedly connected to the left and right ends of the upper side of the movable plate (504); and the limit rod (506) is fixedly connected to the left and right ends of the inner side of the base (1).

5. The cold pressing device for producing automobile compression heat pump according to claim 4, characterized in that: A limiting hole is provided at the middle position of the left and right ends of the movable plate (504), and the outer side of the limiting rod (506) is slidably connected to the inner side of the limiting hole.

6. The cold pressing device for producing automobile compression heat pump according to claim 4, characterized in that: A through hole is provided at the upper end of the base (1), ejection holes are provided at the left and right ends of the lower cold pressing plate (403), a second threaded hole is provided at the middle position of the movable plate (504), the outer side of the second threaded rod (502) is threadedly connected to the inner side of the second threaded hole, the outer side of the ejector rod (505) is slidably connected to the inner side of the through hole and the ejection hole, and the outer side of the upper end of the second threaded rod (502) is fixedly connected to the inner side of the bearing (503).

7. The cold pressing device for producing automobile compression heat pump according to claim 4, characterized in that: The upper end of the push rod (505) is fixedly connected with a rubber pad.

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