Table bottom shell screw test torque detector

Abstract

This utility model discloses a torque tester for watch case screws, belonging to the field of torque testing technology. It includes a base, a worktable connected to one side of the base, a vertical plate connected to the other side of the base, and a top plate connected to the vertical plate. This torque tester for watch case screws, by tightening the fixing bolt, allows the positioning blocks to slide on the fixing bolt using a slot, thereby adjusting the distance between the two positioning blocks to accommodate different watch cases and prevent the watch case from sliding or shifting. Then, by pushing the movable stage, the movable plate slides downwards along the guide post, causing the screwdriver held by the chuck to contact the watch case screw. Afterwards, by tightening the torque sensor, the chuck and screwdriver rotate, causing the screwdriver to apply torque to the watch case screw. At this time, the torque is transmitted sequentially through the screwdriver and chuck to the torque sensor, thus completing the testing work. The operation is simple and convenient, improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of torque testing technology, specifically a torque tester for watch case screws. Background Technology

[0002] The case back screws are the core components of the watch case back fixing device. They are usually made of stainless steel or titanium alloy, which have the characteristics of rust resistance and high strength. Their design must meet the requirements of water resistance, dust resistance and aesthetics. Common types include slotted, cross or hexagonal slots. Some high-end watches use brand-specific screws. Precision threads and torque control ensure sealing and avoid damage to the movement due to being too tight or too loose.

[0003] When performing torque testing on the screws on the back of a watch case, operators usually hold the watch case and the testing instrument by hand to perform the torque test. If the hand shakes slightly during the process, it may cause the instrument and the screw to become misaligned, which not only affects the stability of torque transmission, but may also scratch the edge of the watch case or damage the screw head, affecting the efficiency of the inspection. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a torque tester for watch case screws, which solves the problem that operators often hold the watch case and the testing instrument by hand to perform torsion testing. If the hand shakes slightly during the process, it may cause the instrument and the screw to become misaligned, which not only affects the stability of torque transmission, but may also scratch the edge of the watch case or damage the screw head, thus affecting the inspection efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a torque tester for watch case screws, comprising a base, a worktable connected to one side of the base, a vertical plate connected to the other side of the base, a top plate connected above the vertical plate, a guide post connected between the base and the top plate, a movable plate slidably connected to the guide post, a movable platform connected to the movable platform, a torque sensor rotatably mounted on the movable platform via a bearing, a clamp mounted on the torque sensor, a pad connected above the worktable, a fixing hole provided on the pad, a fixing bolt threaded into the fixing hole, and a positioning block mounted on the base via the fixing bolt.

[0006] As a further embodiment of this utility model: through holes are provided on both sides of the movable plate, and the guide post slides through the through holes and engages with the movable plate.

[0007] As a further embodiment of this utility model: a strip groove is provided on the positioning block, the fixing bolt is disposed in the strip groove, and the positioning block slides on the fixing bolt through the strip groove.

[0008] As a further embodiment of this utility model: a spring is sleeved on the guide post, one end of the spring is connected to the top of the base, and the other end of the spring is connected to the bottom of the movable plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting guide posts, movable plates, torque sensors, fixing bolts, positioning blocks, strip grooves, and springs, the positioning blocks can slide on the fixing bolts using the strip grooves by turning the fixing bolts. Then, by tightening the fixing bolts, the fixing bolts can press and fix the positioning blocks, thereby adjusting the distance between the two positioning blocks to adapt to different watch cases and preventing the watch cases from sliding or shifting. Then, by pushing the movable platform, the movable plate slides down along the guide posts, causing the screwdriver held by the chuck to contact the watch case screws. Then, by turning the torque sensor, the chuck and screwdriver rotate, causing the screwdriver to apply torque to the watch case screws. At this time, the torque is transmitted to the torque sensor through the screwdriver and chuck in sequence, thereby completing the detection work. The operation is simple and convenient, improving the detection efficiency. Moreover, through the elastic rebound and support of the spring, there is no need to repeatedly manually lift the movable plate to reset, further reducing the complexity and intensity of manual operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the base of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the movable platform of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the workbench of this utility model; In the diagram: 1. Base; 2. Workbench; 3. Vertical plate; 4. Top plate; 5. Guide column; 6. Movable plate; 7. Movable table; 8. Torque sensor; 9. Chuck; 10. Pad; 11. Fixing hole; 12. Fixing bolt; 13. Positioning block; 14. Through hole; 15. Strip groove; 16. Spring. Detailed Implementation

[0011] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0012] like Figure 1-4 As shown, this utility model provides a technical solution: a torque tester for a watch case screw, including a base 1, a workbench 2 connected to one side of the base 1, a vertical plate 3 connected to the other side of the base 1, a top plate 4 connected above the vertical plate 3, a guide post 5 connected between the base 1 and the top plate 4, a spring 16 sleeved on the guide post 5, one end of the spring 16 connected to the top of the base 1, and the other end of the spring 16 connected to the bottom of the movable plate 6. Through the elastic rebound and support of the spring 16, the screwdriver and the screw can be kept in contact, thereby facilitating the operator to turn the torque sensor 8 or adjust the data instrument, simplifying the operation and reducing the complexity and intensity of manual operation.

[0013] A movable plate 6 is slidably connected to the guide post 5. Through holes 14 are provided on both sides of the movable plate 6. The guide post 5 slides through the through holes 14 and is slidably engaged with the movable plate 6. Through the sliding connection between the guide post 5 and the movable plate 6, the guide post 5 can guide the movement of the movable table 7 and prevent the movable table 7 from tilting or shifting.

[0014] A movable platform 7 is connected to the movable plate 6. A torque sensor 8 is mounted on the movable platform 7 via a bearing. A chuck 9 is mounted on the torque sensor 8. A pad 10 is connected above the worktable 2. A fixing hole 11 is opened on the pad 10. A fixing bolt 12 is threaded into the fixing hole 11. A positioning block 13 is mounted on the base 1 via the fixing bolt 12. A strip groove 15 is opened on the positioning block 13. The fixing bolt 12 is set in the strip groove 15, and the positioning block 13 slides on the fixing bolt 12 through the strip groove 15. The strip groove 15 allows the positioning block 13 to slide on the fixing bolt 12, so that when the fixing bolt 12 is loosened, the positioning block 13 can be pushed to adjust the distance between the two positioning blocks 13 to adapt to different case sizes.

[0015] The working principle of this utility model is as follows: Before testing, the fixing bolt 12 is turned so that the positioning block 13 can slide on the fixing bolt 12 using the slot 15. Then the fixing bolt 12 is tightened so that the fixing bolt 12 can press and fix the positioning block 13, thus fixing the positioning block 13. This completes the adjustment of the distance between the two positioning blocks 13 to adapt to different watch cases, and limits the two positioning blocks 13 to the watch case to prevent sliding and displacement. At the beginning of the test, the spring 16 on the guide post 5 can support the movable plate 6 to maintain a certain downward pressure height. Then the operator pushes the movable table 7 so that the movable plate 6 slides upward along the guide post 5, causing the screwdriver clamped by the chuck 9 to contact the watch case screw. Then, by turning the torque sensor 8, the chuck 9 and the screwdriver rotate, causing the screwdriver to apply torque to the watch case screw. At this time, the torque will be transmitted to the torque sensor 8 through the screwdriver and the chuck 9 in sequence. The torque sensor 8 will convert the received mechanical torque signal into an electrical signal in real time and transmit it to the external instrument panel through the data cable to complete the torque test.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A torque tester for testing screws on the bottom of a watch case, comprising a base (1), characterized in that: A workbench (2) is connected to one side of the base (1), and a vertical plate (3) is connected to the other side of the base (1). A top plate (4) is connected above the vertical plate (3). A guide post (5) is connected between the base (1) and the top plate (4). A movable plate (6) is slidably connected to the guide post (5). A movable table (7) is connected to the movable plate (6). A torque sensor (8) is rotatably mounted on the movable table (7) via a bearing. A chuck (9) is mounted on the torque sensor (8). A pad (10) is connected above the workbench (2). A fixing hole (11) is opened on the pad (10). A fixing bolt (12) is threaded into the fixing hole (11). A positioning block (13) is installed on the base (1) via the fixing bolt (12).

2. The torque tester for the dial case screws according to claim 1, characterized in that: The movable plate (6) has through holes (14) on both sides, and the guide post (5) slides through the through holes (14) and is in slidable fit with the movable plate (6).

3. The torque tester for the dial case screws according to claim 1, characterized in that: The positioning block (13) has a strip groove (15) and the fixing bolt (12) is set in the strip groove (15), and the positioning block (13) slides on the fixing bolt (12) through the strip groove (15).

4. The torque tester for the dial case screws according to claim 1, characterized in that: A spring (16) is sleeved on the guide post (5). One end of the spring (16) is connected to the top of the base (1), and the other end of the spring (16) is connected to the bottom of the movable plate (6).

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