Downward-pressing jacking device

Abstract

The invention discloses a downward pressing and jacking device. The downward pressing and jacking device comprises a placement station assembly, a downward pressing and jacking assembly and a driving part. The placing station assembly, the downward pressing and jacking assembly and the driving piece are sequentially arranged in the first direction. The placing station assembly is provided with a product placing area, and the product placing area can ascend and descend. The pressing and jacking assembly comprises a jacking block and a transmission unit; the fixed end of the ejector block is connected with the first end of the transmission unit, and the abutting end of the ejector block is arranged above the product containing area. The second end of the transmission unit is connected with the driving part, and the transmission unit is used for converting forward force provided by the driving part into force for controlling the ejector block to move towards the product containing area and press downwards. The pressure-sensitive resistors with various heights can be compatible, the jacking block can jack and press the product in the product placing area, and the pressing effect on the product is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electronic equipment production, in particular to a downward pressing and tightening device. Background Art

[0002] In the existing production process of lightning arresters, the varistor and the tripping spring in the lightning arrester need to be welded. The existing operation method is: the varistor and the tripping spring assembly in the lightning arrester are installed and placed on a fixed tooling, and then another quick clamping mechanism is manually pushed to press the product, and the product is tightened and then welded manually.

[0003] However, the height of the varistor corresponding to each lightning arrester product is different, which requires frequent replacement of the varistor top block at the placement station. In addition, the manual clamping method using the quick clamping mechanism depends on the experience of the operator, resulting in poor consistency in the clamping angle and position. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a downward pressing and tightening device which can be adapted to different types of lightning arresters and improve the tightening effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A downward pressing and tightening device comprises a placement station assembly, a downward pressing and tightening assembly and a driving member; the placement station assembly, the downward pressing and tightening assembly and the driving member are arranged in sequence along a first direction; the placement station assembly is provided with a product placement area, and the product placement area can be raised and lowered; the downward pressing and tightening assembly comprises a top block and a transmission unit; the fixed end of the top block is connected to the first end of the transmission unit, and the pressing end of the top block is arranged above the product placement area; the second end of the transmission unit is connected to the driving member, and the transmission unit is used to convert the forward force provided by the driving member into a force for controlling the top block to move toward the product placement area and press downward.

[0007] The beneficial effects of the present invention are as follows: by arranging a liftable product placement area on the placement station assembly, compatibility with varistors of various heights is achieved; and by using the transmission unit of the downward pressing and tightening assembly, the forward force generated by the driving member is converted into a force that controls the top block to move toward the product placement area and press downward, thereby achieving the top block to tighten and press down the product in the product placement area; and, since the product placement area can be lifted and lowered, the product is pressed by the bidirectional pressing of the product placement area and the top block, thereby improving the pressing effect on the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of a downward pressing and tightening device in an embodiment of the present invention;

[0009] Figure 2 A schematic diagram of the use of a downward pressing and tightening device in an embodiment of the present invention;

[0010] Figure 3 It is a structural schematic diagram of a station assembly placed in a downward pressing and tightening device in an embodiment of the present invention;

[0011] Figure 4 It is a structural schematic diagram of a downward pressing and tightening assembly in a downward pressing and tightening device in an embodiment of the present invention;

[0012] Description of labels:

[0013] 1. Place the workstation assembly; 11. Fixed base block; 12. Mobile base block; 13. Side block; 14. Elastic member; 141. Fixed block; 142. Mobile block; 143. Spring; 144. Sliding rod; 145. Connecting rod; 146. Positioning pin; 15. Magnetic block;

[0014] 2. Press down and tighten the assembly; 21. Ejector block; 22. Transmission unit;

[0015] 221, first follower unit; 2211, first follower; 2212, follower mounting rod; 2213, slider; 2214, slide rail; 2215, tension spring;

[0016] 222, second follower unit; 2221, rotating block; 2222, rotating rod; 2223, second follower; 2224, roller block; 2225, bearing; 2226, pressing block;

[0017] 223. Large base block; 3. Driving parts; 4. Lightning arrester. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0019] A downward pressing and tightening device comprises a placement station assembly, a downward pressing and tightening assembly and a driving member; the placement station assembly, the downward pressing and tightening assembly and the driving member are arranged in sequence along a first direction; the placement station assembly is provided with a product placement area, and the product placement area can be raised and lowered; the downward pressing and tightening assembly comprises a top block and a transmission unit; the fixed end of the top block is connected to the first end of the transmission unit, and the pressing end of the top block is arranged above the product placement area; the second end of the transmission unit is connected to the driving member, and the transmission unit is used to convert the forward force provided by the driving member into a force for controlling the top block to move toward the product placement area and press downward.

[0020] From the above description, it can be seen that the beneficial effects of the present invention are: by arranging a liftable product placement area on the placement station assembly, compatibility with varistors of various heights is achieved; and by using the transmission unit of the downward pressing and tightening assembly, the forward force generated by the driving member is converted into a force that controls the top block to move toward the product placement area and press downward, thereby achieving the top block to tighten and press down the product in the product placement area; and, since the product placement area can be lifted and lowered, the product is pressed by the action of the two-way pressing of the product placement area and the top block, thereby improving the clamping effect on the product.

[0021] Furthermore, the placement station assembly includes a fixed base block, a movable base block, a side stopper and an elastic member; a hollow portion is provided in the center of the fixed base block, and the movable base block and the elastic member are provided in the hollow portion; the movable base block is provided above the elastic member, and the movable base block abuts against the elastic member; the elastic member is elastic in the vertical direction; the side stopper is movably provided on the fixed base block, and is provided around the edge of the hollow portion.

[0022] From the above description, it can be seen that by arranging a movable side block on the fixed base block, the position of the side block can be adjusted according to the shape of the lightning arrester, so as to achieve compatibility with lightning arresters of various plastic shell shapes; at the same time, by abutting the movable base block with the elastic part, the elasticity of the elastic part in the vertical direction is utilized to achieve compatibility with varistors of different heights.

[0023] Furthermore, the elastic member includes a fixed block, a movable block, a spring, a sliding rod and a connecting rod; one end of the connecting rod is connected to the fixed base block, and the other end is connected to the fixed block; one end of the sliding rod passes through the fixed block and is connected to the movable block; the spring is sleeved on the sliding rod and is arranged between the movable block and the fixed block; the movable base block abuts against the movable block.

[0024] It can be seen from the above description that the above structure enables the moving block to move between the fixed block and the fixed base block, and the spring supports the moving block, thereby ensuring that the varistor and the lightning arrester can be tightened as a whole when pressed down.

[0025] Furthermore, a magnetic block is arranged on one side of the movable base block close to the movable block; the movable block has magnetism, and the magnetism of the magnetic block is opposite to that of the movable block.

[0026] From the above description, it can be seen that by setting a magnetic block on the movable base block, not only can the connection between the movable base block and the movable block be facilitated, but also the thickness of the magnetic block can be adjusted to match the movable base block with varistors of different heights.

[0027] Furthermore, the transmission unit includes a first follower unit, a second follower unit and a large bottom block; the first follower unit and the second follower unit are arranged on the large bottom block, and the first follower unit is arranged toward one end of the driving member, and the second follower unit is arranged toward one end of the placement station assembly; the first end of the first follower unit is connected to the driving member, and the second end of the first follower unit is connected to the first end of the second follower unit, for receiving the forward force provided by the driving member and transmitting it to the second follower unit; the second end of the second follower unit is connected to the fixed end of the top block, for converting the forward force into a force to control the top block to move toward the product placement area and press downward.

[0028] From the above description, it can be seen that by arranging the first follower unit and the second follower unit on the large bottom block and through the transmission cooperation between the first follower unit and the second follower unit, the forward force provided by the driving member is converted into a force that controls the top block to move toward the product placement area and press down.

[0029] Furthermore, the first follower unit includes a first follower, a follower mounting rod, a slider, a slide rail and a tension spring; the slide rail is arranged on the large bottom block along the first direction; the slider is slidably arranged on the slide rail; the second follower unit is connected to the slider; the first end of the follower mounting rod is arranged on the slider, and the second end of the follower mounting rod is arranged toward the driving member; the first follower is arranged on the second end of the follower mounting rod and is connected to the driving member; one end of the tension spring is connected to the large bottom block, and the other end is connected to the slider.

[0030] From the above description, it can be seen that through the above structure, after the first follower receives the force applied by the driving member, it can control the follower mounting rod to move linearly under the action of the slide rail and the slide rail, and at the same time make the second follower unit move linearly with the slider to realize the transmission of the forward force.

[0031] Furthermore, a second end of the follower mounting rod is provided with an elongated hole; the follower mounting rod is connected to the slider via the elongated hole.

[0032] It can be known from the above description that by providing the elongated hole on the follower mounting rod, the connection position of the follower mounting rod and the slider can be adjusted according to the distance between the first follower and the driving member.

[0033] Furthermore, the second follower unit includes a rotating block, a rotating rod, a second follower and a roller block; the rotating block is arranged between the roller block and the first follower unit; the rotating block is connected to the fixed end of the top block; one end of the rotating rod is connected to the first follower unit, and the other end of the rotating rod is connected to the rotating block; a notch is provided on the roller block, and the shape of the notch is the shape of a preset motion trajectory; one end of the second follower is connected to the rotating block, and the other end of the second follower is arranged in the notch, and moves along the preset motion trajectory.

[0034] From the above description, it can be seen that through the above structure, the second follower moves along the preset motion trajectory under the action of the first follower unit and the limitation of the groove on the roller block, thereby converting the forward force into a force that controls the top block to move toward the product placement area and press down.

[0035] Furthermore, the rotating rod is tightened by a jackscrew.

[0036] From the above description, it can be seen that the rotating rod is tightened by a top screw, so that the distance between the rotating block and the second follower can be adjusted by adjusting the depth of the head of the rotating rod entering the slider, thereby matching the welding positions of different products and solving the problem of left and right deviations in the welding positions of different products.

[0037] Furthermore, the driving member includes a cam; the cam abuts against the second end of the transmission unit.

[0038] From the above description, it can be seen that a cam is used as a driving member, and different positions on the cam are at different distances from the cam center, so that the tightening and loosening of the pressing mechanism is achieved through the concave and convex positions of the cam, without the need to provide any additional power input source.

[0039] The pressing and tightening device provided by the present invention can be applied to the scenario of pressing and tightening the product, for example, it can be used for the fitting and tightening of the varistor and the tripping spring assembly in the lightning arrester when the two are welded, and the following is explained through a specific implementation method:

[0040] Embodiment 1

[0041] Please refer to Figure 1 as well as Figure 2 A downward pressing and tightening device comprises a placing station component 1, a downward pressing and tightening component 2 and a driving member 3; the placing station component 1, the downward pressing and tightening component 2 and the driving member 3 are arranged in sequence along a first direction; the placing station component 1 is provided with a product placing area, and the product placing area can be raised and lowered; Figure 2As shown, the lightning arrester 4 is arranged on the product placement area; the downward pressing and tightening assembly 2 includes a top block 21 and a transmission unit 22; the fixed end of the top block 21 is connected to the first end of the transmission unit 22, and the pressing end of the top block 21 is arranged above the product placement area; the second end of the transmission unit 22 is connected to the driving member 3, and the transmission unit 22 is used to convert the forward force provided by the driving member 3 into a force to control the top block 21 to move toward the product placement area and press downward; the driving member 3 adopts a cam, and the cam is abutted against the transmission unit 22.

[0042] Please refer to Figure 2 The placement station assembly 1 includes a fixed base block 11, a movable base block 12, a side block 13 and an elastic member 14; a hollow portion is provided in the center of the fixed base block 11, and the movable base block 12 and the elastic member 14 are provided in the hollow portion; the movable base block 12 is provided above the elastic member 14, and the movable base block 12 abuts against the elastic member 14, that is, the area above the movable base block 12 is a product placement area for supporting the varistor above; the elastic member 14 is elastic in the vertical direction; the side block 13 is movably provided on the fixed base block 11, and is provided around the edge of the hollow portion, that is, the side block 13 can be adjusted according to the product specifications; Figure 1 as well as Figure 2 As shown, there are five blocks in total to form the side block 13; wherein, the block is fixed to the fixed base block 11 by means of a screw slot lock, and at the same time, the connection hole for fixing the block is set as a strip hole, so that the connection position of the position block can be adjusted according to the shape of the lightning arrester 4, thereby achieving compatibility with lightning arresters 4 of various plastic shell shapes.

[0043] In an optional embodiment, the elastic member 14 includes a fixed block 141, a movable block 142, a spring 143, a sliding rod 144 and a connecting rod 145; one end of the connecting rod 145 is connected to the fixed base block 11, and the other end is connected to the fixed block 141; one end of the sliding rod 144 passes through the fixed block 141 and is connected to the movable block 142; the spring 143 is sleeved on the sliding rod 144 and is arranged between the movable block 142 and the fixed block 141; the movable base block 12 is in contact with the movable block 142; at the same time, a magnetic block 15 is arranged on the side of the movable base block 12 close to the movable block 142; the movable block 142 is magnetic, and the magnetic properties of the magnetic block 15 are opposite to those of the movable block 142, that is, the part used for the top of the varistor adopts a magnetic quick-change structure, which can be compatible with varistors of various heights. Specifically: the movable base block 12 and the magnetic block 15 are locked by countersunk screws to form a magnetic combination block. The magnetic combination block is switched according to the thickness of the product varistor, and the movable base block 12 is made into different heights to match varistors of different thicknesses; in actual use, the magnetic block 15 and the movable block 142 are fixed by magnetic adsorption. When the product changes specifications, the magnetic combination block is replaced with other thicknesses to achieve matching with varistors of different thicknesses; since the bottom of the lightning arrester 4 is a varistor, and the height of the varistor ranges from 2mm to 8mm, the height of the varistor of different lightning arresters 4 is different. The above-mentioned magnetic combination block is used to match the product; at the same time, the bottom slide bar 144, spring 143 and fixed block 141 structure are used to press down to ensure that the varistor and the lightning arrester 4 can be tightened as a whole; two positioning pins 146 are used to accurately position the placement station component 1 when it is installed on the turntable station.

[0044] The specific working principle of the above-mentioned placement station component 1 is as follows:

[0045] Place the relevant components of the lightning arrester 4 on the placement station component 1, and limit the lightning arrester 4 by adjusting the fixed position of the side block 13; the varistor at the bottom of the lightning arrester 4 component is supported by the mobile base block 12; when pressing down later, the spring 143 is compressed, and the elastic member 14 and the top block 21 press the entire lightning arrester 4. When it is necessary to replace the lightning arrester 4 of different specifications, replace different magnetic combination blocks according to the specifications of the lightning arrester 4, and adjust the fixed position of the side block 13 to achieve the common use of products of various specifications.

[0046] Please refer to Figure 4The transmission unit 22 includes a first follower unit 221, a second follower unit 222 and a large bottom block 223; the first follower unit 221 and the second follower unit 222 are arranged on the large bottom block 223, and the first follower unit 221 is arranged toward one end of the driving member 3, and the second follower unit 222 is arranged toward one end of the placement station assembly 1; the first end of the first follower unit 221 is connected to the driving member 3, and the second end of the first follower unit 221 is connected to the first end of the second follower unit 222, for receiving the forward force provided by the driving member 3 and transmitting it to the second follower unit 222; the second end of the second follower unit 222 is connected to the fixed end of the top block 21, for converting the forward force into a force to control the top block 21 to move toward the product placement area and press downward.

[0047] In an optional embodiment, the first follower unit 221 includes a first follower 2211, a follower mounting rod 2212, a slider 2213, a slide rail 2214 and a tension spring 2215; the slide rail 2214 is arranged on the large bottom block 223 along a first direction; the slider 2213 is slidably arranged on the slide rail 2214; the second follower unit 222 is connected to the slider 2213; the first end of the follower mounting rod 2212 is arranged on the slider 2213, and the second end of the follower mounting rod 2212 is arranged on the slider 2213. The end is arranged toward the driving member 3; the first follower 2211 is arranged on the second end of the follower mounting rod 2212 and is connected to the driving member 3; one end of the tension spring 2215 is connected to the large bottom block 223, and the other end is connected to the slider 2213, for example, one end of the spring 143 is locked to the left side of the large bottom block 223, and the other end is locked to the left side of the slider 2213; the second end of the follower mounting rod 2212 is provided with a long hole; the follower mounting rod 2212 is connected to the slider 2213 through the long hole.

[0048] The second follower unit 222 includes a rotating block 2221, a rotating rod 2222, a second follower 2223 and a roller block 2224; the rotating block 2221 is disposed between the roller block 2224 and the first follower 2211. Figure 4As shown, the rotating block 2221 is arranged between the roller block 2224 and the slider 2213; the rotating block 2221 is connected to the fixed end of the top block 21; one end of the rotating rod 2222 is connected to the slider 2213 in the first follower unit 221, and the other end of the rotating rod 2222 is connected to the rotating block 2221; wherein the rotating rod 2222 is tightened by a top screw, and two deep groove ball bearings 2225 are also arranged in the groove where the rotating block 2221 and the rotating rod 2222 are connected, and the rotating rod 2222 is provided with a snap ring groove and a convex edge to clamp the two deep groove ball bearings 2225 in the rotating block The rod 2222 prevents the bearing 2225 from moving; the tail of the rotating rod 2222 passes through the corresponding hole on the rotating block 2221, and the hole is provided with a screw hole for supporting the rotating rod 2222; the rotating block 2221 is also provided with a pressure block 2226 for pressing the rotating rod 2222 and the bearing 2225; the roller block 2224 is provided with a notch, and the shape of the notch is the shape of a preset motion trajectory; one end of the second follower is connected to the rotating block 2221, and the other end of the second follower 2223 is arranged in the notch and moves along the preset motion trajectory. At the same time, the second follower unit 222 is rotatably connected to the first follower unit 221 through the rotating rod 2222, that is, there is an angle between the second follower unit 222 and the first follower unit 221 in the initial state, and as the second follower 2223 moves obliquely downward in the slot of the roller block 2224, the angle gradually decreases, that is, the top block 21 is continuously pressed down, and when it moves to the slot position of the horizontal part, it is pushed forward; wherein, a long hole is provided on the top block 21, and the locking position of the top block 21 is adjusted according to the welding tightening position of different products.

[0049] The working principle of the above-mentioned pressing and tightening assembly 2 is as follows:

[0050] The component connected to the first follower 2211 is pushed forward by the cam, thereby driving the second follower 2223 to move along the groove track on the roller block 2224, and then the top block 21 moves according to the track of the second follower 2223, thereby realizing the action of first pressing down and then pushing forward the top block 21; when the cam rotates to the recessed position, the tension spring 2215 resets the slider 2213.

[0051] The overall working principle of the above-mentioned pressing and tightening device is as follows:

[0052] After placing the lightning arrester 4 assembly on the product placement station assembly 1, when the cam gradually turns from the concave area to the convex area, the follower mounting rod 2212 is pushed toward the placement station assembly 1 through the first follower 2211, thereby driving the top block 21 on the second follower unit 222 to move; at the same time, due to the action of the second follower 2223 and the roller block 2224, the top block 21 will first press the lightning arrester 4 assembly downward, and then push the release spring in the lightning arrester 4 forward to the corresponding welding position of the varistor. Then the welding head of the welding machine will perform welding. After the welding is completed, the entire station assembly will move to the next station on the turntable, the cam will move to the concave area, and then the device will be reset under the action of the tension spring 2215.

[0053] In summary, the present invention provides a pressing and tightening device, which can press and tighten the product by placing a workstation component and cooperating with the pressing and tightening component. The device can be integrated on other equipment to automatically press and tighten the product by controlling the driving part. The device can be adjusted according to product specifications to be compatible with different product specifications.

[0054] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A downward pressing and tightening device, characterized in that: It includes a placement station component, a pressing and tightening component, and a driving component; The placement station assembly, the pressing and tightening assembly and the driving member are arranged in sequence along the first direction; The placement station assembly is provided with a product placement area, and the product placement area can be raised and lowered; The downward pressing and tightening assembly includes a top block and a transmission unit; The fixed end of the top block is connected to the first end of the transmission unit, and the pressing end of the top block is arranged above the product placement area; The second end of the transmission unit is connected to the driving member, and the transmission unit is used to convert the forward force provided by the driving member into a force for controlling the top block to move toward the product placement area and press downward.

2. A downward pressing and tightening device according to claim 1, characterized in that: The placement station assembly includes a fixed base block, a movable base block, a side stopper and an elastic member; A hollow portion is provided in the center of the fixed base block, and the movable base block and the elastic member are provided in the hollow portion; The movable base block is arranged above the elastic member, and the movable base block abuts against the elastic member; The elastic member has elasticity in the vertical direction; The side stopper is movably arranged on the fixed base block and is arranged around the edge of the hollow portion.

3. A downward pressing and tightening device according to claim 2, characterized in that: The elastic member includes a fixed block, a movable block, a spring, a sliding rod and a connecting rod; One end of the connecting rod is connected to the fixed base block, and the other end is connected to the fixed block; One end of the sliding rod passes through the fixed block and is connected to the moving block; The spring is sleeved on the slide bar and arranged between the moving block and the fixed block; The moving base block abuts against the moving block.

4. A downward pressing and tightening device according to claim 3, characterized in that: A magnetic block is provided on one side of the mobile base block close to the mobile block; The moving block has magnetism, and the magnetism of the magnetic attraction block is opposite to that of the moving block.

5. The downward pressing and tightening device according to claim 1, characterized in that: The transmission unit includes a first follower unit, a second follower unit and a large bottom block; The first follower unit and the second follower unit are arranged on the large bottom block, and the first follower unit is arranged toward one end of the driving member, and the second follower unit is arranged toward one end of the placement station assembly; The first end of the first follower unit is connected to the driving member, and the second end of the first follower unit is connected to the first end of the second follower unit, for receiving the forward force provided by the driving member and transmitting it to the second follower unit; The second end of the second follower unit is connected to the fixed end of the top block, and is used to convert the forward force into a force that controls the top block to move toward the product placement area and press downward.

6. A downward pressing and tightening device according to claim 5, characterized in that: The first follower unit includes a first follower, a follower mounting rod, a slider, a slide rail and a tension spring; The slide rail is arranged on the large bottom block along the first direction; The slider is slidably disposed on the slide rail; The second follower unit is connected to the slider; The first end of the follower mounting rod is arranged on the slider, and the second end of the follower mounting rod is arranged toward the driving member; The first follower is disposed on the second end of the follower mounting rod and is connected to the driving member; One end of the tension spring is connected to the large bottom block, and the other end is connected to the sliding block.

7. A downward pressing and tightening device according to claim 6, characterized in that: The second end of the follower mounting rod is provided with an elongated hole; The follower mounting rod is connected to the slider through the elongated hole.

8. The downward pressing and tightening device according to claim 5, characterized in that: The second follower unit includes a rotating block, a rotating rod, a second follower and a roller block; The rotating block is arranged between the roller block and the first follower unit; The rotating block is connected to the fixed end of the top block; One end of the rotating rod is connected to the first follower unit, and the other end of the rotating rod is connected to the rotating block; The roller block is provided with a notch, and the shape of the notch is the shape of a preset motion trajectory; One end of the second follower is connected to the rotating block, and the other end of the second follower is arranged in the slot and moves along the preset motion track.

9. A downward pressing and tightening device according to claim 8, characterized in that: The rotating rod is tightened by a jack screw.

10. The downward pressing and tightening device according to claim 1, characterized in that: The driving member comprises a cam; The cam abuts against the second end of the transmission unit.

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