Press fit mechanism

Abstract

The utility model provides a pressing mechanism which is used for pressing a middle frame and a rear shell of a meter head and comprises a pressing device, a first fixing frame, a first pressure maintaining box and a second pressure maintaining box, and the pressing device comprises a lifting assembly, a pressing assembly and a clamping assembly. The pressing assembly comprises a first air cylinder, a pressing plate connected to the first air cylinder, a suction nozzle connected to the pressing plate and a pressure sensor connected to the suction nozzle. According to the press fit mechanism, the first pressure maintaining box is placed on the first fixing frame, the middle frame is placed in the first pressure maintaining box, the press fit device clamps the second pressure maintaining box and the suction nozzle to suck the rear shell and abut against the middle frame, the first air cylinder presses downwards to drive the pressing plate and the suction nozzle to move downwards, the suction nozzle presses downwards the rear shell, and when the rear shell is not aligned with the middle frame, the middle frame is pressed downwards. After the pressure sensor senses that the pressure is larger than the set pressure, the first air cylinder stops moving, damage caused when the rear shell and the middle frame are assembled is avoided, the product assembling rate is increased, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pressing mechanisms, in particular to a pressing mechanism. Background Art

[0002] With the rapid development of technology, smartwatches have gradually penetrated into our daily lives and become an indispensable part. They are not just a tool, but also a new fashion favorite, allowing us to enjoy the convenience brought by technology while also showing our own fashion sense. The pressing mechanism of the watch head in the existing technology sets a fixed pressure to press the middle frame and back cover of the watch head together. If the middle frame and back cover are not aligned, the middle frame and back cover are easily damaged when they are pressed together with the set fixed pressure, which greatly increases the loss rate of the product and thus increases production costs.

[0003] Therefore, it is necessary to provide a pressing mechanism to solve the above technical problems. Utility Model Content

[0004] The utility model provides a pressing mechanism, which solves the problem that the pressing mechanism in the prior art sets a middle frame and a rear shell for fixing a pressure gauge head for pressing, and that the pressing easily causes damage to the middle frame and the rear shell when the middle frame and the rear shell are not aligned, thereby increasing production costs.

[0005] To solve the above technical problems, the technical solution of the utility model is: a pressing mechanism for pressing the middle frame and the back shell of the meter head, including a pressing device, a first pressure-keeping box for placing the middle frame, a second pressure-keeping box for limiting the back shell, and a first fixing frame located on one side of the pressing device for placing the first pressure-keeping box, the pressing device including a lifting assembly located on one side of the first fixing frame, a pressing assembly connected to the lifting assembly, and a clamping assembly connected to the pressing assembly for clamping the second pressure-keeping box, the pressing assembly including a first cylinder, a pressure plate connected to the bottom of the first cylinder, a suction nozzle connected to the pressure plate, and a pressure sensor connected to the suction nozzle, after the clamping assembly clamps the second pressure-keeping box to the suction nozzle position, the suction nozzle sucks the back shell, the first cylinder drives the pressure plate to press down to make the back shell fit with the middle frame, and when the pressure sensor senses that the pressure is greater than the set pressure, it is judged that the back shell and the middle frame are not aligned, and the first cylinder stops moving.

[0006] In the present invention, the pressing device is further provided with a second fixing frame located on one side of the first fixing frame;

[0007] The lifting assembly includes a mounting frame connected to the second fixing frame and a first bracket connected to the mounting frame in a lifting manner, and the first cylinder is connected to the first bracket.

[0008] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0009] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0010] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0011] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0012] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0013] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0014] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0015] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0016] The utility model discloses a first through -hole and one end is connected in the connecting rod of first through -hole side wall are still provided with in the center position of pressing plate, the suction nozzle is connected on the connecting rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the pressing mechanism of the present invention places the first pressure-keeping box on the first fixing frame, the middle frame is placed in the first pressure-keeping box, the pressing device clamps the second pressure-keeping box and the suction nozzle to suck the rear shell and dock it on the middle frame, the first cylinder presses down to drive the pressure plate and the suction nozzle to move downward, the suction nozzle presses down on the rear shell, when the rear shell and the middle frame are not aligned, the pressure sensor senses that the pressure is greater than the set pressure, and the first cylinder stops moving, thereby avoiding damage when the rear shell and the middle frame are assembled, improving the assembly rate of the product, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0019] Figure 1 It is a three-dimensional diagram of the pressing mechanism of the present utility model.

[0020] Figure 2 It is a three-dimensional diagram of the pressing device of the pressing mechanism of the present invention.

[0021] Figure 3 The three-dimensional pressing component of the pressing mechanism of the utility model Figure 1 .

[0022] Figure 4 The three-dimensional pressing component of the pressing mechanism of the utility model Figure 2 .

[0023] Figure 5 It is a three-dimensional diagram of the first pressure-maintaining box of the pressing mechanism of the present invention.

[0024] Figure 6 It is a three-dimensional diagram of the second pressure-maintaining box of the pressing mechanism of the present invention.

[0025] 11. First fixing frame; 111. First pressure-maintaining box; 12. Pressing device; 121. Second fixing frame; 122. Mounting frame; 123. Moving platform; 124. Third cylinder; 125. First bracket; 126. Pressing assembly; 128. Clamping assembly; 129. Second pressure-maintaining box; 1261. First cylinder; 1262. Pressing plate; 1263. First through hole; 1271. Connecting rod; 1272. Second bracket; 1273, pressure sensor; 1274, suction nozzle; 1281, second cylinder; 1282, clamping arm; 1111, first placement slot; 1112, second through hole; 1113, first magnetic member; 1114, fixing slot; 1115, strip-shaped protrusion; 1116, connecting column; 1291, second placement slot; 1292, third through hole; 1293, connecting hole; 1294, second magnetic member. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present disclosure.

[0027] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which this present disclosure belongs.

[0028] The terms "first", "second", and similar terms used in the specification and claims of the present patent application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before the "include" or "contain" cover the elements or objects listed after the "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0029] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present disclosure.

[0030] The following is a preferred embodiment of a pressing mechanism provided by the present disclosure that can solve the above technical problems.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , wherein Figure 1 is a structure schematic diagram of the preferred embodiment of the pressing mechanism of the present disclosure, Figure 2 is a rear view of the preferred embodiment of the pressing mechanism of the present disclosure, Figure 3 is a top view of the preferred embodiment of the pressing mechanism of the present disclosure.

[0032] In the figures, structurally similar elements are denoted by the same reference numerals.

[0033] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0034] The utility model provides a pressing mechanism for pressing the middle frame and the rear shell of the meter head, comprising a pressing device 12, a first pressure-keeping box 111 for placing the middle frame, a second pressure-keeping box 129 for limiting the rear shell, and a first fixing frame 11 located on one side of the pressing device 12 for placing the first pressure-keeping box 111. The pressing device 12 comprises a lifting assembly located on one side of the first fixing frame 11, a pressing assembly 126 connected to the lifting assembly, and a clamping assembly 128 connected to the pressing assembly 126 for clamping the second pressure-keeping box 129. The pressing assembly 126 comprises a first cylinder 1261, a pressure plate 126 connected to the bottom of the first cylinder 1261, and a pressure plate 126 connected to the bottom of the first cylinder 1261. 262, the suction nozzle 1274 connected to the pressure plate 1262, and the pressure sensor 1273 connected to the suction nozzle 1274, after the clamping assembly 128 clamps the second pressure-maintaining box 429 to the position of the suction nozzle 1274, the suction nozzle 1274 sucks the rear shell, and the first cylinder 1261 drives the pressure plate 1262 to press down so that the rear shell and the middle frame fit together. When the pressure sensor 1273 senses that the pressure is greater than the set pressure, it is determined that the rear shell and the middle frame are not aligned, and the first cylinder 1261 stops moving. The first fixing frame 11 is used to place the first pressure-maintaining box 111, and the clamping assembly 128 is used to clamp the second pressure-maintaining box 129. When assembling the meter head, first, place the first pressure-maintaining box 111. The pressing box 111 is placed on the first fixing frame 11, the middle frame is placed in the first pressure-keeping box 111, the clamping assembly 128 clamps the second pressure-keeping box 129, the suction nozzle 1274 sucks the rear shell, the pressing assembly 126 descends on the lifting assembly, the suction nozzle 1274 places the rear shell on the middle frame, and then places the second pressure-keeping box 129 on the peripheral side of the rear shell, further, the first cylinder 1261 drives the pressing plate 1262 to press down in the direction of the second pressure-keeping box 129, because the suction nozzle 1274 is connected to the pressing plate 1262, when the pressing plate 1262 is pressed down, the pressing plate 1262 drives the suction nozzle 1274 to press down, and because the rear shell is connected to the suction nozzle 1274, the suction nozzle 1274 is pressed down. 74 simultaneously drives the back shell to be pressed down toward the middle frame. When the back shell contacts the middle frame, the pressure plate 1262 continues to press down. When the positions of the back shell and the middle frame are not aligned, when the pressure sensor 1273 pressing down the suction nozzle 1274 senses that the pressure is greater than the set pressure and the second pressure-keeping box 129 and the first pressure-keeping box 111 are not in contact, the first cylinder 1261 stops driving the second pressure-keeping box 129 to be pressed down. If the first pressure-keeping box 111 and the second pressure-keeping box 129 are in contact under the set pressure, the back shell and the middle frame are assembled successfully, thereby avoiding damage caused by the back shell squeezing the middle frame, greatly reducing the loss rate of product assembly, and thus reducing production costs.

[0035] The pressing device 12 is also provided with a second fixed frame 121 located on one side of the first fixed frame 11. The lifting component includes a mounting frame 122 connected to the second fixed frame 121 and a first bracket 125 connected to the mounting frame 122 for lifting. The first cylinder 1261 is connected to the first bracket 125. The second fixed frame 121 is used to facilitate the movement of the lifting component on the second fixed frame 121, thereby facilitating the suction nozzle 1274 to adsorb the back shell and the clamping assembly 128 to clamp the second pressure maintaining box 129.

[0036] A first through hole 1263 and a connecting rod 1272, one end of which is connected to the side wall of the first through hole 1263, are also provided at the center position of the pressure plate 1262. The suction nozzle 1274 is connected to the connecting rod 1272, and the connecting rod 1272 is connected to the side wall of the first through hole 1263. The connecting rod 1272 is used to connect the suction nozzle 1274 to facilitate connecting the suction nozzle 1274 to the pressure plate 1262, and is also used to reduce the volume of the pressing assembly 126.

[0037] The pressing assembly 126 also includes a second bracket 1272 connected to the connecting rod 1271. The suction nozzle 1274 and the pressure sensor 1273 are both connected to the second bracket 1272. The suction nozzle 1274 is located below the pressure sensor 1273. The second bracket 1272 is used to install the suction nozzle 1274 and the pressure sensor 1273. The second bracket 1272 is connected to the side wall of the first through hole 1263 through the connecting rod 1271. When the pressure plate 1262 is raised or lowered, the second bracket 1272 follows the pressure plate 1262 to rise or fall, thereby driving the suction nozzle 1274 and the pressure sensor 1273 to rise or fall.

[0038] There are two first cylinders 1261, and the two first cylinders 1261 are respectively located between the first bracket 125 and the pressure plate 1262. The first through hole 1263 is located between the two first cylinders 1261. The two first cylinders 1261 are arranged between the first bracket 125 and the pressure plate 1262. The first cylinder 1261 drives the pressure plate 1262 to press down more smoothly, and can enable the pressure plate 1262 to press down the second pressure keeping box 129 smoothly, preventing the pressure plate 1262 from tilting when pressing down the second pressure keeping box 129.

[0039] The clamping assembly 128 includes a second cylinder 1281 respectively connected to the two first cylinders 1261 and a clamping arm 1282 respectively connected to the two second cylinders 1281. The clamping arms 1282 on the two second cylinders 1281 are respectively located on both sides of the pressure plate 1262. The clamping arms 1282 extend to the bottom of the pressure plate 1262. The clamping directions of the clamping arms 1282 of the two second cylinders 1281 are opposite. The second cylinder 1281 is used to drive the clamping arm 1282 to clamp or release the second pressure maintaining box 129, and the second cylinder 1281 is connected to the first cylinder 1261, which can effectively reduce the volume of the pressing device 12.

[0040] The first pressure-maintaining box 111 is provided with a first placement groove 1111 for placing the middle frame, a second through hole 1112 located in the first placement groove 1111, and a plurality of first magnetic members 1113 located around the first placement groove 1111. The second pressure-maintaining box 129 is provided with a second placement groove 1291 for limiting the rear shell on the side opposite to the first pressure-maintaining box 111, a third through hole 1292 located in the second placement groove 1291, and a plurality of first magnetic members 1113 located around the second placement groove 1291 and adjacent to the first magnetic member 111. 3. The second magnetic part 1294 that attracts each other, the first placement groove 1111 is used to place the middle frame, and the first placement groove 1111 is also used to limit the middle frame, so that the middle frame and the back shell can be effectively and accurately docked when assembling. The second placement groove 1291 of the second pressure-keeping box 129 is used to place and limit the back shell. After the middle frame and the back shell are accurately docked and assembled, the first magnetic part 1113 of the first pressure-keeping box 111 and the second magnetic part 1294 of the second pressure-keeping box 129 attract each other to prevent the assembled header from separating.

[0041] In this embodiment, the first magnetic member 1113 may be a magnet, and the second magnetic member 1294 may be a magnet or a metal material having ferromagnetism that is attracted to the magnet.

[0042] The first pressure-keeping box 111 is also provided with connecting columns 1116 located on both sides of the first pressure-keeping box 111, and the second pressure-keeping box 129 is also provided with connecting holes 1293 matching the connecting columns 1116 at positions opposite to the connecting columns 1116. The connecting columns 1116 are used to connect to the connecting holes 1293 of the second pressure-keeping box 129 to align the first pressure-keeping box 111 and the second pressure-keeping box 129 to prevent positional displacement when the first pressure-keeping box 111 and the second pressure-keeping box 129 are fitted together.

[0043] The side edges of both long sides of the first pressure-keeping box 111 and the second pressure-keeping box 129 are provided with fixing grooves 1114. There are two fixing grooves 1114, and a strip protrusion 1115 for clamping by the clamping arm 1282 is formed between the two fixing grooves 1114. The strip protrusion 1115 is used to facilitate clamping by the clamping arm 1282, thereby effectively preventing the clamping arm 1282 from loosening when clamping the first pressure-keeping box 111 or the second pressure-keeping box 129.

[0044] In this embodiment, a third cylinder 124 is also provided on the top of the mounting frame 122 to drive the first bracket 125 to rise and fall on the mounting frame 122. The third cylinder 124 is used to drive the first cylinder 1261 to rise and fall on the mounting frame 122, thereby facilitating the pressing assembly 126 to press the second pressure-keeping box 129 or remove the second pressure-keeping box 129 after assembly. At the same time, it is also convenient for the suction nozzle 1274 to drive the back shell to be assembled on the middle frame.

[0045] The pressing device 12 is also provided with a movable platform 123 connected between the second fixing frame 121 and the mounting frame 122 and used to drive the mounting frame 122 away from or close to the first fixing frame 11. The movable platform 123 is used to drive the mounting frame 122 away from or close to the top of the first fixing frame 11, and is used to facilitate the position of the pressing assembly 126, facilitate the precise docking of the second pressure keeping box 129 with the first pressure keeping box 111, and facilitate the precise docking of the back shell with the middle frame.

[0046] Working principle:

[0047] When pressing the header, first, place the first pressure-keeping box 111 on the first fixed frame 11, and place the middle frame in the first placement groove 1111 of the first pressure-keeping box 111. The mobile platform 123 drives the mounting frame 122 to move, so that the pressing assembly 126 moves to the top of the rear shell and the clamping assembly 128 is located above the second pressure-keeping box 129. The third cylinder 124 is used to facilitate the downward movement of the first bracket 125 so that the suction nozzle 1274 sucks the rear shell and the clamping assembly 128 to clamp the second pressure-keeping box 129. After the suction nozzle 1274 sucks the rear shell and the clamping assembly 128 to clamp the second pressure-keeping box 129, the mobile platform 123 moves the mounting frame 122 to the top of the first fixed frame 11, and the third cylinder 124 drives the mounting frame 122 to move downward. When the rear shell is docked with the middle frame, the first cylinder 1261 drives the pressing plate 1262 When the pressure plate 1262 moves downward, it drives the second bracket 1272 to move downward, and the suction nozzle 1274 pushes the back shell downward in the direction of the middle frame. When the suction nozzle 1274 applies pressure to the back shell, if the pressure sensor 1273 detects that the pressure of the suction nozzle 1274 on the back shell is greater than the set pressure, the first cylinder 1261 stops driving the pressure plate 1262 to prevent the back shell and the middle frame from being damaged when the back shell and the middle frame are not aligned. If the back shell and the middle frame are aligned, the second pressure keeping box 129 and the first pressure keeping box 111 are fitted after reaching the set pressure, the suction nozzle 1274 can no longer continue to apply pressure to the back shell. In the above manner, when the back shell and the middle frame are not aligned, the problem of damage caused by assembly of the back shell and the middle frame can be effectively avoided, which greatly reduces the loss rate of product assembly, improves the assembly rate of the product, and thus reduces the production cost.

[0048] The pressing mechanism of this preferred embodiment is achieved by placing the first pressure-keeping box on the first fixing frame, placing the middle frame in the first pressure-keeping box, the pressing device clamping the second pressure-keeping box and the suction nozzle to suck the back shell and dock it on the middle frame, the first cylinder presses down to drive the pressure plate and the suction nozzle to move downward, and the suction nozzle presses down on the back shell. When the back shell and the middle frame are not aligned, the pressure sensor senses that the pressure is greater than the set pressure, and the first cylinder stops moving, thereby avoiding damage to the back shell and the middle frame during assembly, improving the assembly rate of the product, and reducing production costs.

[0049] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A pressing mechanism for pressing the middle frame and rear shell of a watch head, characterized in that: The cam is pressed against the bottom of the cam and pressed against the bottom of the cam, and the cam is pressed against the bottom of the cam, and the cam is pressed against the bottom of the cam and pressed against the bottom of the cam.

2. The pressing mechanism according to claim 1, characterized in that: The pressing device is further provided with a second fixing frame located on one side of the first fixing frame; The lifting assembly includes a mounting frame connected to the second fixing frame and a first bracket connected to the mounting frame in a lifting manner, and the first cylinder is connected to the first bracket.

3. The pressing mechanism according to claim 2, characterized in that: A first through hole and a connecting rod with one end connected to the side wall of the first through hole are further provided at the center of the pressing plate, and the suction nozzle is connected to the connecting rod.

4. The pressing mechanism according to claim 3, characterized in that: The pressing assembly further includes a second bracket connected to the connecting rod, the suction nozzle and the pressure sensor are both connected to the second bracket, and the suction nozzle is located below the pressure sensor.

5. The pressing mechanism according to claim 3, characterized in that: Two first cylinders are provided, and the two first cylinders are respectively located between the first bracket and the pressure plate, and the first through hole is located between the two first cylinders.

6. The pressing mechanism according to claim 5, characterized in that: The clamping assembly includes a second cylinder respectively connected to the two first cylinders and a clamping arm respectively connected to the two second cylinders. The clamping arms on the two second cylinders are respectively located on both sides of the pressure plate. The clamping arms extend to the bottom of the pressure plate, and the clamping directions of the clamping arms of the two second cylinders are opposite.

7. The pressing mechanism according to claim 1, characterized in that: The first pressure-maintaining box is provided with a first placement groove for placing the middle frame, a second through hole located in the first placement groove, and a plurality of first magnetic members located around the first placement groove; A second placement groove of the limiting rear shell, a third through hole located in the second placement groove, and a second magnetic member located around the second placement groove and attracted to the first magnetic member are provided on a side of the second pressure-maintaining box opposite to the first pressure-maintaining box.

8. The pressing mechanism according to claim 7, characterized in that: The first pressure-maintaining box is further provided with connecting posts on both sides of the first pressure-maintaining box, and the second pressure-maintaining box is further provided with connecting holes matching the connecting posts at positions opposite to the connecting posts.

9. The pressing mechanism according to claim 6, characterized in that: The side edges of both long sides of the first pressure-maintaining box and the second pressure-maintaining box are provided with fixing grooves, and two fixing grooves are provided. A strip-shaped protrusion for clamping by the clamping arm is formed between the two fixing grooves.

10. The pressing mechanism according to claim 2, characterized in that: The pressing device is further provided with a movable platform connected between the second fixing frame and the mounting frame and used for driving the mounting frame to move away from or approach the first fixing frame.

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