Large-pressure high-precision positioning and pressing device

Abstract

The utility model discloses a large-pressure high-precision positioning press-fit device which comprises a press-fit base, a pressure device and a positioning seat, the press-fit base is in a C shape, a notch in one side of the press-fit base serves as a press-fit operation space, and the press-fit base is provided with an upper fixing table and a lower fixing table which are located on the upper side and the lower side of the press-fit operation space respectively. The upper fixing table and the lower fixing table are integrally machined and formed on the pressing base. The pressure device is installed on the top of the upper fixing table in the vertical direction, and the output end of the pressure device vertically penetrates through the lower fixing table downwards and is fixedly connected with a pressure head. The positioning seat is fixed to the top of the lower fixing table, a positioning hole is formed in the positioning seat, and the positioning hole and the pressing head are coaxially distributed. And the pressure device is used for driving the pressure head to vertically move downwards so as to press the pivot positioned in the positioning hole on the product. The pressing device can provide high stability and rigidity when bearing large pressure, guarantees the pressing precision of products, and is simple in structure, small in size and easy to accurately position the products.

Description

TECHNICAL FIELD

[0001] The utility model relates to press device technical field, especially a kind of high-precision positioning press device of big pressure. BACKGROUND

[0002] In modern industrial production, press process is widely applied in many fields, such as electronic manufacturing, parts production, etc. With the continuous progress of technology and the increasing requirement of product quality, higher requirements are put forward for the performance of press device, especially in pressure, accuracy and stability.

[0003] When coping with the demand of big pressure and high accuracy, the traditional press device is usually complex in structure design, usually including upper and lower pressing dies, complex support and positioning structure and guiding system, which not only makes the press device large in size and large in space occupation, but also shows deficiency in stability and reliability. Due to the low structural stability, under the long-time high-pressure work, the equipment is prone to wear and deformation, thereby affecting the stability of pressure and the maintenance of accuracy, and problems such as press position deviation and uneven pressure distribution occur, thereby affecting the performance and consistency of products. Therefore, developing a high-precision positioning press device of big pressure has become a technical problem to be solved by the technical personnel in the field. SUMMARY

[0004] The problem to be solved by the utility model is to provide a high-precision positioning press device of big pressure to overcome the defects of complex structure, large size and low structural stability of the existing press device.

[0005] The utility model adopts the technical scheme to solve the technical problem: a high-precision positioning press device of big pressure, comprising:

[0006] A press base is provided, which is in the shape of C and has a notch on one side as a pressing operation space. The press base is provided with an upper fixed table and a lower fixed table on the upper and lower sides of the pressing operation space, respectively. The upper fixed table and the lower fixed table are integrally formed on the press base.

[0007] A pressure device is installed on the top of the upper fixed table in the vertical direction. The output end of the pressure device is vertically downward through the lower fixed table and is fixedly connected with a pressure head.

[0008] A positioning seat is fixed on the top of the lower fixed table. The positioning seat is provided with a positioning hole, which is coaxially distributed with the pressure head. The pressure device is used to drive the pressure head to move vertically downward to press the pivot in the positioning hole on the product.

[0009] As a further improvement of the utility model, the slide rail is fixedly installed on a vertical surface of the pressing base facing the pressing operation space, the L-shaped pressing head connecting block is fixedly installed on the output end of the pressure device, the slide block is fixedly installed on one side of the pressing head connecting block, and the pressing head connecting block is slidably connected to the slide rail through the slide block.

[0010] As a further improvement of the utility model, the pre-pressing mechanism is installed on the pressing head connecting block and used for pressing the product during the pressing process, the pre-pressing mechanism comprises a pre-pressing plate which is movably installed on the pressing head connecting block, a spring which is elastically abutted against the pre-pressing plate, and a pre-pressing block which is fixed at the bottom of the pre-pressing plate, and the pre-pressing block is lower than the pressing head.

[0011] As a further improvement of the utility model, the mounting plate is fixed on the pressing head connecting block, the linear bearing is fixed on the mounting plate, the guide shaft is fixed at the top of the pre-pressing plate, the guide shaft is slidably matched in the linear bearing, the spring is sleeved on the guide shaft, and the two ends of the spring are elastically abutted against the linear bearing and the pre-pressing plate respectively.

[0012] As a further improvement of the utility model, the pressing head is fixedly installed on the pressing head connecting block through the locking mechanism, the locking mechanism comprises a locking connector and a locking nut, the locking nut is provided with a stepped hole with a large inner diameter in the upper section and a small inner diameter in the lower section, the lower end of the pressing head passes through the stepped hole and the annular boss at the upper end of the pressing head is stopped on the step of the stepped hole, and the locking connector is fixedly connected between the pressing head connecting block and the locking nut in a threaded manner and abuts against the pressing head.

[0013] As a further improvement of the utility model, the bottom surface of the pressing head is provided with an annular groove, and the cross section of the annular groove is semicircular.

[0014] As a further improvement of the utility model, the pressure device adopts a gas-liquid booster cylinder.

[0015] As a further improvement of the utility model, the pressing head is made of die steel.

[0016] As a further improvement of the utility model, the positioning seat is provided with a photoelectric sensor used for detecting the product to be pressed.

[0017] The utility model discloses a big pressure high accuracy positioning compression device provides a C -shaped compression pedestal as integrated support structure through adopting, fixes pressure device on the upper fixed platform of compression pedestal, fixes the positioning seat on the lower fixed platform of compression pedestal simultaneously, provides greater output force by pressure device, and the pivot in the positioning hole is compressed on the product through the pressure head, adopts this scheme not only simple structure, small, easy to accurate positioning to product, convenient to take and put the material operation, and high structural stability, can provide higher stability and rigidity when bearing pressure and load, reduce the possibility of deformation and distortion, the stability of pressure and compression accuracy can keep unchanged for a long time, avoid the problems such as compression position deviation and uneven pressure distribution, guarantee the performance and consistency of product. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of big pressure high accuracy positioning compression device of the utility model;

[0019] Figure 2 It is the perspective view of compression head, lock mechanism, pre -compression mechanism and compression head connecting block assembly in the utility model;

[0020] Figure 3 It is the sectional view of compression head, lock mechanism, pre -compression mechanism and compression head connecting block assembly in the utility model;

[0021] Figure 4 It is the sectional view of compression head and product in the compression state in the utility model;

[0022] Figure 5 It is the perspective view of the utility model Figure 4 A part in the utility model;

[0023] Figure 6 It is the perspective view of compression head in the utility model.

[0024] The following description is made in conjunction with the drawings:

[0025] 1, compression pedestal;101, compression operation space;102, upper fixed platform;103, lower fixed platform;2, pressure device;3, compression head;301, annular boss;302, annular groove;4, positioning seat;401, positioning hole;5, pivot;6, slide rail;7, compression head connecting block;8, sliding block;9, pre -compression plate;10, spring;11, pre -compression block;12, mounting plate;13, linear bearing;14, guide shaft;15, lock joint;16, lock nut;17, photoelectric sensor. DETAILED DESCRIPTION

[0026] The following description is made in conjunction with the drawings:

[0027] Referring to Figures 1 to 6 The utility model provides a big pressure high accuracy positioning compression device, include: compression base 1, pressure device 2, pressure head 3 and positioning seat 4.

[0028] Among them, compression base 1 is C-shaped, and the notch of one side is used as compression operation space 101, and compression base 1 is equipped with upper fixed platform 102 and lower fixed platform 103 respectively at the upper and lower sides of compression operation space 101, and upper fixed platform 102 and lower fixed platform 103 are all integrally processed and formed on compression base 1.

[0029] In the utility model, upper fixed platform 102 is used for installing pressure device 2, and lower fixed platform 103 is used for installing positioning seat 4, and in the compression process, the compression force is borne by integral compression base 1, the compression base 1 is designed as C-shaped, can provide higher stability and rigidity when bearing pressure and load, reduce the possibility of deformation and distortion, guarantee that compression accuracy is not influenced, and the notch of one side of compression base 1 is used as compression operation space 101, can provide larger operation space, facilitate the operator to load, unload and facilitate to observe and intervene to the compression process.

[0030] Further, pressure device 2 is installed in the top of upper fixed platform 102 along the vertical direction, and the output end of pressure device 2 is fixedly connected with pressure head 3 by vertically downward passing lower fixed platform 103.

[0031] As preferred, the pressure device 2 in the utility model adopts gas-liquid booster cylinder, has larger output force, realizes high pressure output, and satisfies the demand of compression force.

[0032] Further, positioning seat 4 is fixed in the top of lower fixed platform 103 and is just below pressure head 3, positioning seat 4 is equipped with positioning hole 401, positioning hole 401 is coaxially distributed with pressure head 3, and positioning hole 401 is used for positioning the pivot 5 on the product. The utility model can realize positioning by directly inserting the pivot 5 on the product into the positioning hole 401 of positioning seat 4, and since pressure head 3 and pivot 5 are both cylindrical, the positioning in the circumferential direction of the product does not need to be considered, this mode can quickly, reliably and accurately position the product, and can also guarantee the concentricity of the pivot 5 to be compressed and pressure head 3, and guarantee the compression accuracy.

[0033] The pressure device 2 in the utility model is used for driving pressure head 3 to vertically move downward to compress the pivot 5 positioned in positioning hole 401 on the product.

[0034] The utility model discloses a C-shaped compression base 1 is used as integrated support structure, and the pressure device 2 is fixed on the upper fixed platform 102 of compression base 1, and positioning seat 4 is fixed on the lower fixed platform 103 of compression base 1 simultaneously, and the greater output force is provided by pressure device 2, to be compressed in the positioning hole 401 in the product by the compression head 3 of pivot 5, adopt this scheme not only simple structure, small, occupy small, easy to the product positioning, and high structural stability, not easy to appear abrasion and deformation, the stability of pressure and compression precision can keep unchanged for a long time, avoid appearing compression position deviation and pressure distribution uneven etc. Problem, guarantee the performance and consistency of product.

[0035] Referring to Figure 1 The output end of pressure device 2 is fixedly installed with L-shaped compression head connecting block 7, and the compression head 3 is fixedly installed on the compression head connecting block 7 through locking mechanism.

[0036] As Figure 3 The lower end of compression head 3 passes through the stepped hole and extends locking nut 16 downwards, and the upper end of compression head 3 is provided with annular boss 301, which is stopped on the step of the stepped hole. Locking connector 15 is fixedly connected between compression head connecting block 7 and locking nut 16 in a threaded manner and abuts against compression head 3, so as to realize reliable locking and fixing of compression head 3.

[0037] Further, in order to improve the stability of the compression process, the utility model discloses that the compression base 1 is fixedly installed with slide rail 6 on a vertical surface facing the compression operation space 101, and one side of the compression head connecting block 7 is fixedly installed with slide block 8, and the compression head connecting block 7 is slidably connected to the slide rail 6 through the slide block 8.

[0038] It is worth mentioning that the compression head connecting block 7 is also provided with a pre-pressing mechanism for pressing the product during the compression process.

[0039] As Figure 2 Specifically, the pre-pressing mechanism includes a pre-pressing plate 9 that can be installed up and down on the compression head connecting block 7, a spring 10 that elastically abuts against the pre-pressing plate 9, and a pre-pressing block 11 that is fixed at the bottom of the pre-pressing plate 9, and the pre-pressing block 11 is lower than the compression head 3.

[0040] The installation plate 12 is fixed on the pressure head connecting block 7, and the two ends of the installation plate 12 are fixed with linear bearings 13. The top of the pre-pressing plate 9 is fixed with two guide shafts 14 which are correspondingly sleeved in the linear bearings 13, and the upper ends of the guide shafts 14 are extended out of the linear bearings 13 and are fixed with clamping springs to prevent the guide shafts 14 from being taken out of the linear bearings 13. The springs 10 are sleeved on the guide shafts 14, and the two ends of the springs 10 are respectively elastically abutted against the linear bearings 13 and the pre-pressing plate 9.

[0041] In the process that the pressure device 2 drives the pressure head connecting block 7 to drive the pressure head 3 and the pre-pressing mechanism to move downwards, the pre-pressing block 11 is arranged below the pressure head 3, so that the pre-pressing block 11 is firstly pressed on the product to pre-press the product and prevent the product from being deviated in the process of pressing. In the following process, the pressure device 2 drives the pressure head connecting block 7 to continuously press the pressure head 3 downwards, the pre-pressing block 11 is in a static state due to being pressed on the product, at this time, the springs 10 are compressed until the pressure head 3 abuts against the pivot 5 and the pivot 5 is pressed and fixed with the product.

[0042] Referring to Figures 4 to 6 , the bottom surface of the pressure head 3 is provided with an annular groove 302, and the cross section of the annular groove 302 is semicircular. The upper end of the pivot 5 is provided with a convex ring. In the process of pressing, the inner surface of the annular groove 302 of the pressure head 3 close to the center will first contact the convex ring of the pivot 5 (as shown in Figure 5 ), and with the pressure device 2 continuously driving the pressure head 3 to move downwards, the pressure head 3 will press the convex ring of the pivot 5 to fold outward and be riveted on the product, so as to realize the pressing and fixing.

[0043] Preferably, the pressure head 3 is made of die steel material, which has high strength and hardness and can withstand high pressure and strong friction in the process of use, and is not easy to be deformed and worn.

[0044] In addition, the positioning seat 4 is also provided with a photoelectric sensor 17 for detecting whether there is a product on the positioning seat 4, which can be used as a starting control signal of the pressure device 2.

[0045] It can be seen that the high-precision positioning and pressing device with large pressure adopts the C-shaped pressing base 1 as an integrated support structure, fixes the pressing device 2 on the upper fixed table 102 of the pressing base 1, fixes the positioning seat 4 on the lower fixed table 103 of the pressing base 1, provides a large output force by the pressing device 2, and presses the pivot 5 positioned in the positioning hole 401 on the product through the pressing head 3. The scheme has the advantages of simple structure, small size, easy accurate positioning of the product, convenient feeding and discharging operation, high structural stability, high stability and rigidity when bearing pressure and load, reduced deformation and twisting possibility, long-lasting stability of the pressure and pressing precision, avoided pressing position deviation and uneven pressure distribution, and guaranteed product performance and consistency.

[0046] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is only preferred embodiments of the present application, and the present application can be implemented in many other ways different from those described herein, so the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments, without departing from the scope of the technical solutions of the present application, by using the disclosed methods and technical contents. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the scope of the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A high-pressure, high-precision positioning and pressing device, characterized in that, include: A pressing base (1) is C-shaped, with a notch on one side serving as a pressing work space (101). The pressing base (1) is provided with an upper fixing platform (102) and a lower fixing platform (103) located on the upper and lower sides of the pressing work space (101), respectively. Both the upper fixing platform (102) and the lower fixing platform (103) are integrally formed on the pressing base (1). Pressure device (2), the pressure device (2) is installed vertically on the top of the upper fixed platform (102), the output end of the pressure device (2) passes vertically downward through the lower fixed platform (103) and is fixedly connected to a pressure head (3); Positioning seat (4), the positioning seat (4) is fixed on the top of the lower fixed platform (103), the positioning seat (4) is provided with positioning hole (401), the positioning hole (401) is coaxially distributed with the pressure head (3); the pressure device (2) is used to drive the pressure head (3) to move vertically downward, so as to press the pivot (5) positioned in the positioning hole (401) onto the product.

2. The high-pressure, high-precision positioning and pressing device according to claim 1, characterized in that: A slide rail (6) is fixedly installed on a vertical surface of the pressing base (1) facing the pressing operation space (101). An L-shaped pressure head connecting block (7) is fixedly installed on the output end of the pressure device (2). A slider (8) is fixedly installed on one side of the pressure head connecting block (7). The pressure head connecting block (7) is slidably connected to the slide rail (6) through the slider (8).

3. The high-pressure, high-precision positioning and pressing device according to claim 2, characterized in that: The pressure head connecting block (7) is equipped with a pre-pressing mechanism for pressing the product during the pressing process. The pre-pressing mechanism includes a pre-pressing plate (9) that can be movably mounted on the pressure head connecting block (7), a spring (10) that elastically abuts against the pre-pressing plate (9), and a pre-pressing block (11) fixed to the bottom of the pre-pressing plate (9). The pre-pressing block (11) is set lower than the pressure head (3).

4. The high-pressure, high-precision positioning and pressing device according to claim 3, characterized in that: A mounting plate (12) is fixed on the pressure head connecting block (7), a linear bearing (13) is fixed on the mounting plate (12), a guide shaft (14) is fixed on the top of the pre-pressure plate (9), the guide shaft (14) is slidably fitted inside the linear bearing (13), the spring (10) is fitted on the guide shaft (14), and the two ends of the spring (10) elastically abut against the linear bearing (13) and the pre-pressure plate (9) respectively.

5. The high-pressure, high-precision positioning and pressing device according to claim 2, characterized in that: The pressure head (3) is fixedly installed on the pressure head connecting block (7) by a locking mechanism. The locking mechanism includes a locking connector (15) and a locking nut (16). The locking nut (16) has a stepped hole with a large inner diameter at the top and a small inner diameter at the bottom. The lower end of the pressure head (3) passes through the stepped hole and its annular boss (301) at the top stops on the step of the stepped hole. The locking connector (15) is fixedly connected between the pressure head connecting block (7) and the locking nut (16) by a thread and abuts against the pressure head (3).

6. The high-pressure, high-precision positioning and pressing device according to claim 1, characterized in that: The bottom surface of the pressure head (3) is provided with an annular groove (302), and the cross-section of the annular groove (302) is semi-circular.

7. The high-pressure, high-precision positioning and pressing device according to claim 1, characterized in that: The pressure device (2) is a gas-liquid booster cylinder.

8. The high-pressure, high-precision positioning and pressing device according to claim 1, characterized in that: The pressure head (3) is made of mold steel.

9. The high-pressure, high-precision positioning and pressing device according to claim 1, characterized in that: The positioning base (4) is equipped with a photoelectric sensor (17) for detecting the product to be pressed.

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