A light hammer comprehensive testing device

Abstract

The present application provides a kind of light hammer comprehensive test equipment, belong to mechanical technical field.It solves the problem of low degree of automation of existing equipment.In the present application, light hammer includes main body and is set on the starting switch and gear knob of main body, the equipment includes the rack with work platform, work platform is equipped with tooling and gauge, tooling top is equipped with the recess cavity for the horizontal placement of main body, tooling side is equipped with the positioning mechanism for limiting main body in recess cavity, recess cavity bottom wall is vertically penetrated with operating hole, and gear knob is in operating hole;The lower side of work platform is vertically provided with pneumatic finger for gripping gear knob and swing assembly for driving pneumatic finger to swing around the rotation center of gear knob, and the accommodation hole is provided through work platform for the upper end of pneumatic finger to pass through and extend into operating hole;It also includes a pressure rod for pressing the starting switch and a translation mechanism for driving the pressure rod to approach or away from the starting switch.The light hammer comprehensive test equipment has high degree of automation.

Description

Technical Field

[0001] This invention belongs to the field of mechanical technology and relates to a testing device, particularly a light hammer comprehensive testing device. Background Technology

[0002] A lightweight hammer drill, or simply a hammer drill, is a widely used power tool. It's based on an electric drill, but with the addition of a piston driven by an electric motor and connected to a crankshaft. This piston compresses air repeatedly within a cylinder, causing periodic changes in air pressure. These changing air pressures drive a hammer within the cylinder to repeatedly strike the top of the drill bit, essentially striking the drill bit with a hammer.

[0003] Light hammers need to undergo performance testing before leaving the factory, and this testing is generally carried out using appropriate testing equipment. Such testing equipment includes a fully automatic testing machine for electric hammer performance (application number: 201821359409.2) disclosed in the Chinese Patent Database. It includes a base with an upwardly protruding support frame on the base. A test platform is hinged to the upper end of the support frame. The test platform is connected to a rotary drive assembly fixedly installed on the support frame. An electric hammer mounting seat is fixedly installed on the test platform. An impact seat is also provided on the test platform. A pressure sensor and a counter are provided on the impact seat.

[0004] Currently, commercially available light hammers require pressing a start switch to activate them after being powered on, and the hammering force is adjusted by rotating a gear knob. However, in the testing machine mentioned above, both switches still require manual operation, resulting in a low level of automation. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a comprehensive light hammer testing device, which solves the technical problem of how to improve the degree of automation.

[0006] The objective of this invention can be achieved through the following technical solution: A light hammer comprehensive testing device, the light hammer including a main body and a start switch and a gear knob disposed on the main body, the device including a frame with a working platform, the working platform being provided with a fixture and a gauge for testing the performance of the light hammer, the top of the fixture being provided with a cavity for horizontal placement of the main body, and a positioning mechanism for confining the main body within the cavity being provided on one side of the fixture, characterized in that an operating hole is vertically penetrating the bottom wall of the cavity, and the gear knob is located in the operating hole; a pneumatic finger for gripping the gear knob and a swing assembly for driving the pneumatic finger to swing around the rotation center of the gear knob are vertically disposed on the lower side of the working platform, and a clearance hole is penetrating the working platform for the upper end of the pneumatic finger to pass through and extend into the operating hole; the device also includes a pressure rod for pressing the start switch and a translation mechanism for driving the pressure rod to move closer to or away from the start switch.

[0007] With the cooperation of the translation mechanism and the operating components consisting of the swing assembly and pneumatic fingers, the start switch can be automatically pressed and the gear switch can be automatically rotated. This means that the subsequent automatic testing can be achieved simply by placing the light hammer body into the cavity, effectively reducing manual intervention and greatly improving the automation level of the entire equipment.

[0008] In the aforementioned light hammer integrated testing equipment, the concave cavity has an opening on one side for the main body with the handle to extend out. The start switch is located outside the concave cavity, the pressure rod is vertically set, and the pressure rod and the start switch are arranged along the sliding direction of the pressure rod. The translation mechanism is located between the main body and the working platform to effectively utilize the lower space of the main body, reduce the distance between various components, make the entire structure more compact, and reduce space occupation.

[0009] In the aforementioned light hammer comprehensive testing equipment, the swing component includes a motor fixed on the frame and a connecting shaft vertically arranged between the motor and the pneumatic finger. The middle part of the connecting shaft is rotatably supported on the frame by a bearing. The pneumatic finger is fixed to the upper end of the connecting shaft, and the lower end of the connecting shaft is connected to the motor, so that the pneumatic finger swings stably to drive the gear knob to rotate, resulting in good working stability.

[0010] Naturally, the swing assembly can also be a motor fixed on the frame and a horizontally set support plate, with pneumatic fingers fixed on the support plate and the motor driving the support plate to rotate.

[0011] In the aforementioned light hammer integrated testing equipment, the translation mechanism includes a connecting block and a cylinder. The connecting block is vertically arranged and located between the pressure rod and the cylinder. Both sides of the connecting block are fixedly connected to the pressure rod and the piston rod of the cylinder, respectively. It has the advantages of simple structure and stable operation.

[0012] In the aforementioned integrated light hammer testing equipment, the main body also includes a forward switch located on the upper side and a reverse switch located on the lower side. Above the forward switch is an upper pressure block for pressing it. A vertical clearance hole runs through the bottom wall of the recessed cavity, directly opposite the reverse switch. A lower pressure block for pressing the reverse switch is located within the clearance hole. An upper drive unit is provided on the working platform for raising and lowering the upper pressure block, and a lower drive unit is provided on the frame for raising and lowering the lower pressure block. The forward and reverse rotation of the light hammer is automatically switched through the cooperation of the pressure block and the drive unit, further enhancing the automation level of the equipment and making it more convenient to use.

[0013] In the aforementioned light hammer integrated testing equipment, the positioning mechanism includes positioning blocks pressed on the main body and power components for driving the positioning blocks closer to or away from the main body; there are at least two positioning blocks distributed along the length of the main body, and the number of power components and positioning blocks are the same and their positions correspond one-to-one.

[0014] In the aforementioned light hammer integrated testing equipment, the positioning block is made of rubber. The power component includes a horizontally arranged connecting rod and a swing cylinder located on one side of the tooling. One end of the connecting rod is fixedly connected to the main shaft of the swing cylinder, and the positioning block is fixed to the lower side of the other end of the connecting rod. The positioning block positions the main body by swinging, making the power component horizontally arranged as a whole, thereby reducing the height of the testing equipment and minimizing space occupation.

[0015] In the aforementioned light hammer integrated testing equipment, the upper drive component is mounted on one of the connecting rods, which simultaneously mounts the positioning block and the upper drive component to simplify the structure and facilitate assembly.

[0016] In the aforementioned integrated testing equipment for light hammers, the type of light hammer is a lithium-ion battery light hammer. A battery slot for installing a battery pack is provided on one side of the main body extending from the recessed cavity. The work platform also has a pushing component for driving the battery pack into or out of the battery slot. One battery pack can be matched with multiple light hammers, so the operator only needs to place the light hammer without the battery pack into the fixture, eliminating the need for manual battery pack installation and further simplifying the use.

[0017] In the aforementioned light hammer integrated testing equipment, the pushing component includes a bracket that is slidably mounted on the working platform along the length of the battery slot and a cylinder for driving the bracket to reciprocate and translate. The aforementioned battery pack is fixed on the bracket.

[0018] Compared with existing technologies, this light hammer comprehensive testing equipment has the following advantages:

[0019] 1. With the cooperation of the translation mechanism and the operating components consisting of the swing assembly and pneumatic fingers, the start switch can be automatically pressed and the gear switch can be automatically rotated. This means that the subsequent automatic testing can be achieved simply by placing the light hammer body into the cavity, effectively reducing manual intervention and greatly improving the automation level of the entire equipment.

[0020] 2. The forward and reverse rotation of the light hammer is automatically switched through the cooperation of the pressure block and the drive component, which can further enhance the automation level of this equipment and make it more convenient to use.

[0021] 3. One battery pack can be matched with multiple light hammers, so the operator only needs to put the light hammer without the battery pack into the fixture, thus eliminating the need for manual battery pack installation and further simplifying the use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the light hammer integrated testing equipment.

[0023] Figure 2 This is a schematic diagram of the positioning structure of the light hammer.

[0024] Figure 3 This is a schematic diagram showing the position and structure of the pressure rod and the start switch.

[0025] Figure 4 This is a schematic diagram of the swing assembly.

[0026] Figure 5 This is a schematic diagram showing the positional structure of the upper and lower pressure blocks.

[0027] In the diagram: 1. Main body; 1a. Start switch; 1b. Gear knob; 1c. Forward switch; 1d. Reverse switch; 1e. Drill rod; 2. Frame; 2a. Work platform; 3. Tooling; 3a. Operating hole; 4. Pneumatic finger; 5. Upper pressure block; 6. Lower pressure block; 7. Upper drive component; 8. Lower drive component; 9. Pressure rod; 10. Motor; 11. Connecting shaft; 12. Connecting block; 13. Positioning block; 14. Connecting rod; 15. Swing cylinder; 16. Battery pack; 17. Bracket; 18. Laser sensor; 19. Slide plate; 20. Pressure sensor; 21. Slide plate; 22. Rotating shaft. Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example 1

[0029] like Figure 1 and Figure 5 As shown, the light hammer includes a main body 1 and a start switch 1a, a gear knob 1b, a forward switch 1c, and a reverse switch 1d provided on the main body 1. When the main body 1 is set horizontally, the forward switch 1c and the reverse switch 1d are arranged vertically. In actual use, the forward switch 1c is located on the upper side of the main body 1, and the reverse switch 1d is located on the lower side of the main body 1.

[0030] This light hammer comprehensive testing equipment includes a frame 2 with a working platform 2a, on which tooling 3 and a gauge for testing the performance of the light hammer are fixed.

[0031] in,

[0032] The tooling 3 has a recessed cavity at its top for horizontal placement of the main body 1, and a positioning mechanism on one side of the tooling 3 to confine the main body 1 within the cavity. An operating hole 3a is vertically penetrating the bottom wall of the cavity, and the gear knob 1b is located within the operating hole 3a. A pneumatic finger 4 for gripping the gear knob 1b and a swing assembly for driving the pneumatic finger 4 to swing around the rotation center of the gear knob 1b are vertically arranged on the lower side of the work platform 2a. A clearance hole is provided on the work platform 2a for the upper end of the pneumatic finger 4 to pass through and extend into the operating hole 3a. An upper pressure block 5 for pressing the forward switch 1c is located directly above the forward switch 1c. A clearance hole is vertically penetrating the bottom wall of the cavity, directly opposite the reverse switch 1d. A lower pressure block 6 for pressing the reverse switch 1d is located within the clearance hole. An upper drive component 7 for driving the upper pressure block 5 to rise and fall is provided on the work platform 2a, and a lower drive component 8 for driving the lower pressure block 6 to rise and fall is provided on the frame 2. The device also includes a lever 9 for pressing the start switch 1a and a translation mechanism for driving the lever 9 closer to or further away from the start switch 1a.

[0033] With the cooperation of the translation mechanism, the pressing mechanism consisting of the pressure block and the driving component, and the operating component consisting of the swing component and the pneumatic finger 4, the start switch 1a can be automatically pressed, the gear switch can be automatically rotated, and the forward and reverse rotation of the light hammer can be automatically adjusted. In this way, the subsequent automatic testing can be achieved simply by placing the light hammer body 1 into the cavity, which effectively reduces manual intervention and greatly improves the automation level of the entire equipment.

[0034] To further explain, an opening is provided on one side of the cavity for the main body 1 with the handle to extend out. At this time, the start switch 1a is outside the cavity, the pressure rod 9 is vertically set, and the pressure rod 9 and the start switch 1a are arranged along the sliding direction of the pressure rod 9. The translation mechanism is located between the main body 1 and the working platform 2a to effectively utilize the lower space of the main body 1, reduce the distance between the components, make the whole structure more compact, and reduce space occupation.

[0035] In this embodiment,

[0036] like Figure 4 As shown, the swing assembly includes a motor 10 fixed on the frame 2 and a connecting shaft 11 vertically arranged between the motor 10 and the pneumatic finger 4. The middle part of the connecting shaft 11 is rotatably supported on the frame 2 by a bearing. The pneumatic finger 4 is fixed to the upper end of the connecting shaft 11, and the lower end of the connecting shaft 11 is connected to the motor 10, so that the pneumatic finger 4 swings stably to drive the gear knob 1b to rotate, resulting in good working stability. Preferably, the motor 10 is connected to the connecting shaft 11 through a coupling; the pneumatic finger 4 is fixed to the connecting shaft 11 by a horizontally arranged mounting plate.

[0037] Naturally, the swing assembly can also be a motor 10 fixed on the frame 2 and a horizontally set support plate, with the pneumatic finger 4 fixed on the support plate and the motor 10 driving the support plate to rotate.

[0038] like Figure 2 and Figure 3 As shown, the translation mechanism includes a connecting block 12 and a cylinder. The connecting block 12 is vertically positioned between the pressure rod 9 and the cylinder, and both sides of the connecting block 12 are fixedly connected to the pressure rod 9 and the cylinder piston rod, respectively. It has the advantages of simple structure and stable operation. Of course, it is also possible to use an electric push rod to replace the cylinder. In this case, the main shaft of the electric push rod is fixedly connected to the connecting block 12.

[0039] The positioning mechanism includes positioning blocks 13 pressed against the main body 1 and power components for driving the positioning blocks 13 closer to or further away from the main body 1; there are at least two positioning blocks 13 distributed along the length of the main body 1, and the number of power components and positioning blocks 13 are the same and their positions correspond one-to-one. In the actual product, there are two positioning blocks 13.

[0040] To further explain, such as Figure 2 As shown, the positioning block 13 is made of rubber material; the power component includes a horizontally arranged connecting rod 14 and a swing cylinder 15 arranged on one side of the tooling 3. One end of the connecting rod 14 is fixedly connected to the main shaft of the swing cylinder 15, and the positioning block 13 is fixed to the lower side of the other end of the connecting rod 14. The positioning block 13 positions the main body 1 by swinging, so that the power component is horizontally arranged as a whole, thereby reducing the height of the testing equipment and reducing space occupation.

[0041] like Figure 2 As shown, the upper drive component 7 is mounted on one of the connecting rods 14, meaning that the positioning block 13 and the upper drive component 7 are mounted on the same connecting rod 14 to simplify the structure and facilitate assembly. The upper drive component 7 and the lower drive component 8 can be either pneumatic cylinders or hydraulic cylinders.

[0042] When the type of hammer is a lithium-ion battery hammer, the side of the main body 1 extending out of the cavity is provided with a battery slot for installing the battery pack 16. The working platform 2a is also provided with a pushing component for driving the battery pack 16 to slide into or out of the battery slot. One battery pack 16 can be matched with multiple hammers, so the operator only needs to put the hammer without the battery pack 16 into the fixture 3, thus eliminating the step of manually installing the battery pack 16 and further facilitating use.

[0043] The actuation assembly includes a bracket 17 that is slidably mounted on the working platform 2a along the length of the battery compartment and a cylinder for driving the bracket 17 to reciprocate. The battery pack 16 is fixed on the bracket 17.

[0044] like Figure 1 As shown, the inspection fixture is divided into a forward and reverse rotation detection device, a hammer impact detection device, and a runout detection device, and the specific structures of these three devices are all existing.

[0045] Specifically

[0046] The hammer also includes a drill rod 1e mounted on the main body 1, and the drill rod 1e is horizontally positioned. The runout detection device includes a laser sensor 18 disposed on one side of the hammer drill bit, and the laser beam emitted by the laser sensor 18 is horizontally positioned and perpendicular to the hammer drill bit.

[0047] The hammer impact detection device and the runout detection device are mounted on the same slide plate 19. The slide plate 19 is driven by a cylinder to slide horizontally along the radial direction of the drill pipe 1e, so that the hammer impact detection device and the runout detection device are respectively positioned facing the drill pipe 1e.

[0048] The hammer impact detection device includes a cylinder, a pressure sensor 20, and a support block for connecting the cylinder and the pressure sensor 20. Under the action of the cylinder, the pressure sensor 20 can slide along the axial direction of the drill rod 1e.

[0049] The forward and reverse rotation detection device includes a slide plate 21 horizontally slidably mounted on a slide plate 19 and a rotating shaft 22 horizontally rotatably mounted on the slide plate 21. The sliding direction of the slide plate 21 is perpendicular to the slide plate 19, and the slide plate 21 is driven to move by a cylinder; the axis of the rotating shaft 22 is parallel to the drill rod 1e, the front end of the rotating shaft 22 is pressed by the drill rod 1e to make the rotating shaft 22 rotate with the drill rod 1e, and the rear end of the rotating shaft 22 is connected to an encoder assembly. Example 2

[0050] The structure and principle of this embodiment are basically the same as those of embodiment one. The difference is that the positioning mechanism includes a vertically arranged cylinder, and the piston rod of the cylinder is fixedly connected to the positioning hole.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A light hammer comprehensive testing device, the light hammer including a main body (1) and a start switch (1a) and a gear knob (1b) disposed on the main body (1), the device including a frame (2) having a working platform (2a), the working platform (2a) being provided with a fixture (3) and a gauge for testing the performance of the light hammer, the top of the fixture (3) being provided with a cavity for the main body (1) to be placed horizontally, and a positioning mechanism for confining the main body (1) within the cavity being provided on one side of the fixture (3), characterized in that, An operating hole (3a) is vertically penetrating the bottom wall of the concave cavity, and the gear knob (1b) is located in the operating hole (3a); a pneumatic finger (4) for gripping the gear knob (1b) and a swing assembly for driving the pneumatic finger (4) to swing around the rotation center of the gear knob (1b) are vertically provided on the lower side of the work platform (2a), and a clearance hole is provided on the work platform (2a) for the upper end of the pneumatic finger (4) to pass through and extend into the operating hole (3a), and the pneumatic finger (4) contacts the gear knob (1b); the swing assembly includes a motor (10) fixed on the frame (2) and a connecting shaft (11) vertically arranged between the motor (10) and the pneumatic finger (4), and the middle part of the connecting shaft (11) is rotatably supported on the frame (2) by a bearing. 2) The pneumatic finger (4) is fixed on the upper end of the connecting shaft (11), and the lower end of the connecting shaft (11) is connected to the motor (10); the device also includes a pressure rod (9) for pressing the start switch (1a) and a translation mechanism for driving the pressure rod (9) to move closer to or away from the start switch (1a); the side of the main body (1) extending out of the cavity is provided with a battery slot for installing the battery pack (16), and the working platform (2a) is also provided with a pushing component for driving the battery pack (16) to slide into or out of the battery slot. The pushing component includes a bracket (17) that is slidably arranged on the working platform (2a) along the length direction of the battery slot and a cylinder for driving the bracket (17) to reciprocate and translate. The battery pack (16) is fixed on the bracket (17).

2. The light hammer comprehensive testing equipment according to claim 1, characterized in that, The cavity has an opening on one side for the handle of the main body (1) to extend out. The start switch (1a) is located outside the cavity. The pressure rod (9) is vertically arranged, and the pressure rod (9) and the start switch (1a) are arranged along the sliding direction of the pressure rod (9). The translation mechanism is located between the main body (1) and the working platform (2a).

3. The light hammer comprehensive testing equipment according to claim 2, characterized in that, The translation mechanism includes a connecting block (12) and a cylinder. The connecting block (12) is vertically arranged between the pressure rod (9) and the cylinder. The two sides of the connecting block (12) are fixedly connected to the piston rods of the pressure rod (9) and the cylinder.

4. The light hammer comprehensive testing equipment according to claim 1, characterized in that, The main body (1) also includes a forward switch (1c) on the upper side of the main body (1) and a reverse switch (1d) on the lower side of the main body (1); an upper pressure block (5) for pressing the forward switch (1c) is provided directly above the forward switch (1c); a clearance hole is vertically penetrating the bottom wall of the cavity and is provided opposite to the reverse switch (1d); a lower pressure block (6) for pressing the reverse switch (1d) is provided in the clearance hole; an upper drive member (7) for driving the upper pressure block (5) to rise and fall is provided on the working platform (2a); and a lower drive member (8) for driving the lower pressure block (6) to rise and fall is provided on the frame (2).

5. The light hammer comprehensive testing equipment according to claim 4, characterized in that, The positioning mechanism includes a positioning block (13) pressed on the main body (1) and a power component for driving the positioning block (13) to move closer to or away from the main body (1); there are at least two positioning blocks (13) and they are distributed along the length of the main body (1). The number of power components and positioning blocks (13) are the same and their positions correspond one-to-one.

6. The light hammer comprehensive testing equipment according to claim 5, characterized in that, The positioning block (13) is made of rubber material; the power component includes a horizontally arranged connecting rod (14) and a swing cylinder (15) arranged on one side of the tooling (3). One end of the connecting rod (14) is fixedly connected to the main shaft of the swing cylinder (15), and the positioning block (13) is fixed on the lower side of the other end of the connecting rod (14).

7. The light hammer comprehensive testing equipment according to claim 6, characterized in that, The upper drive unit (7) is mounted on one of the connecting rods (14).

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