Automatic tapping device for air conditioner bottom plate

Abstract

The present invention provides an automatic tapping device for an air conditioner base plate, and relates to the technical field of air conditioner production. The automatic tapping device for the air conditioner base plate comprises: a bracket, the upper surface of which is provided with a base plate; a support assembly, comprising: an end support assembly, which is provided on the base and is used to support the end of the workpiece to be processed; a middle auxiliary support assembly, which is provided on the bracket and is used to support the middle of the workpiece to be processed; a positioning assembly, which is provided on the base plate; and a tapping assembly, which is provided on the base plate and is movably connected to the base plate. The special design of the support assembly and the positioning assembly of the present invention solves the problems of difficulty in side tapping of large-size panels, low tapping efficiency, and low tapping quality.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioner production, and in particular relates to an automatic tapping device for an air conditioner bottom plate. Background Art

[0002] Nowadays, in the machinery manufacturing industry, the inner side surfaces of the holes of various parts such as machine housings, equipment end faces, nuts, etc. need to be processed with internal threads, screws, etc. Tapping equipment is a device that uses taps to process internal threads. When batch processing certain products, multiple surfaces of the product need to be processed with standard threaded holes. If the existing vertical tapping machine is used to process the product, due to the single-head tapping technology of the existing vertical tapping machine, only one or more holes in one-dimensional direction can be tapped each time. Therefore, when processing products that need to be tapped on multiple surfaces, manual clamping is required for multiple times. Therefore, the quality of tapping is mainly guaranteed by the operator, and there are certain requirements for the operator's skills. In addition, the labor intensity is high, the efficiency is low, the quality is not satisfactory, and the labor cost is high. Moreover, for larger panels, especially when tapping their sides, there are certain difficulties. Manual side tapping of large-sized panels is not only inconvenient to operate and inefficient, but also has a 20% tooth stripping phenomenon. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic tapping device for an air conditioner base plate to solve the problems in the prior art of great difficulty, low manual tapping efficiency and low quality when tapping the side of a large-sized plate.

[0004] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention provides an automatic tapping device for an air conditioner bottom plate, comprising:

[0006] A bracket, the upper surface of which is provided with a bottom plate;

[0007] A support assembly comprising:

[0008] An end support assembly, which is arranged on the bottom plate and is used to support the end of the workpiece to be processed;

[0009] A middle auxiliary support assembly, which is arranged on the bracket, passes through the bottom plate, and is used to support the middle part of the workpiece to be processed;

[0010] A positioning component, arranged on the bottom plate;

[0011] A tapping assembly is slidably mounted on the base plate, and the tapping assembly is aligned with the tapping hole on the workpiece to be processed.

[0012] In one embodiment of the present invention, the number of the tapping assemblies is the same as the number of the tapping holes on the workpiece to be processed.

[0013] In one embodiment of the present invention, a guide groove is provided at the bottom of the tapping assembly.

[0014] In one embodiment of the present invention, a guide bar is provided on the bottom plate, and the guide bar cooperates with the guide groove.

[0015] In one embodiment of the present invention, the tapping assembly comprises:

[0016] a rack base, which is slidably mounted on the bottom plate;

[0017] A motor, which is slidably connected to the frame base;

[0018] A tap is mounted on the motor at one end close to the workpiece to be processed.

[0019] In one embodiment of the present invention, the tapping assembly further comprises a cylinder, which is mounted on the frame base and connected to the motor to drive the motor to slide.

[0020] In one embodiment of the present invention, the frame base is connected to the motor via a guide rail slider structure.

[0021] In one embodiment of the present invention, the positioning component comprises:

[0022] A positioning structure, arranged on the bottom plate;

[0023] The width adjustment structure is arranged on the supporting assembly.

[0024] In one embodiment of the present invention, the width adjustment structure is provided on the end support assembly.

[0025] In one embodiment of the present invention, the width adjustment structure is a threaded bolt assembly.

[0026] The present invention sets multiple tapping components to work simultaneously, so that the tapping operation of all parts of the workpiece to be processed can be completed by clamping it once. The tapping has high precision and good quality, simplifies the process, greatly improves the workpiece effect, saves a lot of manpower and material resources, and meets the needs of automated production. For large-sized panels, side tapping is more difficult. When side tapping is performed on two opposite sides at the same time, it is easy to cause the large-sized layout to bend and deform. The present invention strengthens the support effect on the middle part of the workpiece to be processed by setting a middle auxiliary support component, preventing large-sized panels from bending under the action of simultaneous forces on both ends. By arranging a guide strip on the bracket, the tapping assembly can be moved to more accurately correspond to the tapping position of the workpiece to be processed; by symmetrically arranging a width adjustment structure on the end support assembly, it is used to tighten the two opposite non-processed sides of the workpiece to be processed to adapt to the size changes of the workpiece to be processed, thereby enhancing the applicability and practicality of the automatic tapping device of the air-conditioning base plate; at the same time, the setting of the width adjustment structure can strengthen the fixing effect on the workpiece to be processed, prevent the workpiece to be processed from shifting during the tapping operation, achieve precise positioning, and ensure the tapping quality.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 The present invention is an assembly diagram of an automatic tapping device for an air conditioner base plate.

[0030] Figure 2 for Figure 1 The present invention discloses an end support positioning component of an automatic tapping device for an air conditioner bottom plate.

[0031] Figure 3 for Figure 1 The present invention discloses a middle auxiliary support assembly of an automatic tapping device for an air conditioner bottom plate.

[0032] Figure 4 for Figure 1 The present invention discloses a tapping assembly of an automatic tapping device for an air conditioner base plate. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiment of the present invention will be further described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 As shown, the present invention provides an automatic tapping device for an air conditioner base plate, comprising: a bracket 1, a supporting assembly, a positioning assembly and a tapping assembly.

[0035] See also Figure 1 As shown, the bracket 1 can be, for example, a frame structure, and the material can be, for example, a metal material. In one embodiment of the present invention, the bracket 1 is an aluminum profile bracket. A bottom plate 5 is provided on the upper surface of the bracket 1. The bottom plate 5 can be, for example, two pieces, respectively fixedly mounted on the two ends of the bracket 1. The bracket 1 also includes a fixed side plate connecting the frame and the bottom plate 5. The fixed side plates can be multiple pieces, which are used to reinforce the bottom plate 5 to prevent the vibration generated by the operation of the motor 8 from causing the bottom plate to loosen, thereby increasing the service life of the bracket 1. The bracket 1 can also be provided with at least two casters 17, for example, 4 casters 17, which are respectively mounted on the four corners of the lower surface of the bracket 1, for example, two universal wheels and two fixed wheels, which can be set as universal side brake rollers, or double brake rollers.

[0036] See also Figures 1 to 3 As shown, the support assembly includes an end support assembly 2 and a middle auxiliary support assembly 3. The end support assembly 2 is fixedly mounted on the base plate 5, and the end support assembly 2 has two groups for supporting the ends of the workpiece 4 to be processed. The middle auxiliary support assembly 3 includes a fixing rod 31, a support rod 32 and a locking mechanism 33. The support rod 32 passes through the base plate 5 and is used to support the middle part of the workpiece to be processed. The locking mechanism 33 is respectively connected to the fixing rod 31 and the support rod 32, and is used to lock the relative position of the fixing rod 31 and the support rod 32 to prevent the support rod 32 from moving downward due to the pressure of the workpiece 4 to be processed during the operation of the automatic tapping device of the air-conditioning base plate. Between the two end support assemblies 2 and above the middle auxiliary support assembly 3 is a placement space for the workpiece 4 to be processed. The workpiece 4 to be processed is a panel of relatively large size, and the part to be tapped is located on the side panel at the end of the panel. The panel is facing downward and fully fits with the support assembly, and the side panel is placed upward. By setting the middle auxiliary support assembly 3, the middle part of the workpiece 4 to be processed is given sufficient support to prevent the workpiece 4 to be processed from bending under the action of forces at both ends simultaneously during the tapping operation.

[0037] See also Figure 1 and Figure 2 As shown, the positioning assembly includes a positioning structure 7 and a width adjustment structure 16. The positioning structure 7 is fixedly mounted on the base plate 5, and is located between the end support assembly 2 and the tapping assembly. The positioning structures 7 are provided in at least two numbers, and are used to locate the end position of the workpiece 4 to be processed, so as to prevent it from swinging back and forth along the tapping direction during the tapping process. The positioning structure 7 may be, for example, a positioning plate or a positioning rod. The width adjustment structure 16 is provided on the end support assembly 2, and the width adjustment structure 16 may be, for example, a spring buckle assembly, or a threaded bolt assembly, which is symmetrically arranged at both ends of the end support assembly 2, and is used to fix the width direction of the workpiece 4 to be processed, so as to prevent it from swinging left and right in the vertical tapping direction during the tapping process.

[0038] See also Figure 1 and Figure 4 As shown, the tapping assembly is slidably mounted on the bottom plate, the tapping assembly is aligned with the tapping holes on the workpiece to be processed, and the number of the tapping assemblies is the same as the number of the tapping holes on the workpiece to be processed. The tapping assembly includes a frame base 11, a guide groove is provided at the bottom of the frame base 11, and a corresponding guide bar 6 is provided on the bottom plate 5 of the bracket 1. The frame base 11 is movably connected with the bracket through a guide groove-guide bar structure, so that the tapping assembly can be accurately positioned to the tapping position of the workpiece 4 to be processed. The tapping assembly also includes: a motor 8, a tap 9 and a cylinder 10. The motor 8 is mounted on a motor fixing plate 14, and a movable plate 13 is provided below the motor fixing plate 14. The movable plate 13 is movably connected to the frame base 11 through a guide rail slider structure 12. Each group of the tapping assemblies can be provided with two guide rail slider structures 12, and the guide rail slider is parallelly mounted on the upper surface of the frame base 11, so that the motor 8 can move smoothly along the tapping direction of the workpiece 4 to complete the tapping operation. The tap 9 is fixedly mounted at the front end of the motor 8, i.e., at an end close to the workpiece 4 to be processed, and the tap 9 rotates driven by the motor 8. The cylinder 10 is arranged at a position close to the rear end of the motor 8 and is fixedly mounted on the upper surface of the frame base 11 through a cylinder fixing plate 15.

[0039] See also Figure 1As shown, in one embodiment of the present invention, an automatic tapping device for an air conditioner base plate further includes an electric control system, and the electric control system is used to control the automatic operation of the tapping assembly. The electric control system can be controlled by a programmable logic controller (PLC), for example. In this embodiment, a relay is used to control the forward stroke of the tap 9. When the workpiece 4 to be processed is relatively fixed, the forward time of the tap 9 is certain, so a delay relay can be selected for control. After the time is up, the motor 8 stops rotating forward and changes to reverse. The stroke of the cylinder 10 can also be adjusted, for example, by setting a mechanical limit device under the cylinder 10, and the mechanical limit device can be, for example, a limit screw. By setting the stroke of the cylinder 10, the forward stroke of the tap 9 is controlled. When the stroke of the cylinder 10 is reached, the motor 8 stops rotating forward and starts to reverse, the tap 9 withdraws, the cylinder 10 resets, and the tapping operation ends. The forward and reverse rotation of the motor 8 can be achieved by a frequency converter controlled by the relay.

[0040] See also Figures 1 to 4 As shown, the working process of the automatic tapping device of the air conditioner bottom plate is as follows: manually place the workpiece 4 to be processed to the designated area, adjust the width adjustment structure 16 to fix the workpiece 4 to be processed firmly, move the tap 9 on the tapping assembly to align with the holes to be tapped of the workpiece 4 to be processed one by one, set the forward stroke of the cylinder 10, turn on the power switch, the three motors 8 start forward rotation at the same time, the three taps 9 rotate at the same time driven by the motor 8, the three groups of cylinders 10 work at the same time to drive the motor 8 to move forward, the three taps 9 tap at the same time, reach the predetermined stroke, the tapping of the tap 9 ends, the motor 8 stops forward rotation and starts reverse rotation, driving the tap 9 to rotate in the opposite direction to exit the threaded hole, the cylinder 10 resets, the motor 8 stops rotating, the workpiece 4 is manually removed, and the entire tapping operation is completed.

[0041] In addition, in order to prevent the motor 8 from failing to stop immediately after power failure, resulting in quality problems such as thread stripping, a section of the tap 9 without thread can be used as a buffer. When the electric control system is controlled by a programmable logic controller, no buffer is required.

[0042] See also Figures 1 to 4As shown, the present invention sets multiple tapping components to work simultaneously, so that the tapping operation of all parts of the workpiece 4 to be processed can be completed by clamping it once. The tapping precision is high, the quality is good, the process is simplified, the workpiece effect is greatly improved, a lot of manpower and material resources are saved, and the needs of automated production are met. For large-sized panels, side tapping is more difficult. When side tapping is performed on two opposite sides at the same time, it is easy to cause the large-sized layout to bend and deform. The present invention strengthens the support effect on the middle part of the workpiece 4 to be processed by setting a middle auxiliary support component 3, preventing large-sized panels from bending under the action of simultaneous forces at both ends. By providing a guide strip 6 on the bracket 100, the tapping assembly can be moved to more accurately correspond to the tapping position of the workpiece 4 to be processed; by symmetrically providing a width adjustment structure 16 on the end support assembly 2, it is used to tighten the two opposite non-processed sides of the workpiece 4 to be processed to adapt to the size change of the workpiece 4 to be processed, thereby enhancing the applicability and practicality of the automatic tapping device of the air-conditioning base plate; at the same time, the setting of the width adjustment structure 16 can strengthen the fixing effect on the workpiece to be processed, prevent the workpiece 4 to be processed from shifting during the tapping operation, achieve precise positioning, and ensure the tapping quality.

[0043] The above embodiments are only illustrative of the principles and effects of the present invention, and are used to help explain the present invention. The above embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An automatic tapping device for air conditioner baseboard, It is characterized in that For side tapping of the panel, including: A bracket, the upper surface of which is provided with a bottom plate; A support assembly comprising: An end support assembly, which is fixedly mounted on the bottom plate and is used to support the end of the workpiece to be processed; A middle auxiliary support assembly, which is arranged on the bracket, passes through the bottom plate, and is used to support the middle part of the workpiece to be processed; A positioning assembly, fixedly mounted on the base plate; A tapping assembly is slidably mounted on the base plate, and the tapping assembly is aligned with a tapping hole on the workpiece to be processed; The tapping assembly includes a tap, and the tap includes at least a buffer section without thread teeth; The bracket is a frame structure, and a bottom plate is provided on the upper surface of the bracket. The bottom plate is provided with two pieces, which are fixedly installed at the two ends of the bracket respectively; The support assembly includes an end support assembly and a middle auxiliary support assembly; the end support assembly is provided with two groups; the middle auxiliary support assembly includes a fixing rod, a support rod and a locking mechanism; the support rod passes through the bottom plate and is used to support the middle part of the workpiece to be processed; the locking mechanism is respectively connected to the fixing rod and the support rod, and is used to lock the relative position of the fixing rod and the support rod; Between the two end support assemblies and above the middle auxiliary support assembly is a placement space for the workpiece to be processed; The positioning assembly includes a positioning structure and a width adjustment structure, the positioning structure is fixedly mounted on the bottom plate, the positioning structure is located between the end support assembly and the tapping assembly; the positioning structure is provided with at least two, and is used to position the end position of the workpiece to be processed to prevent it from swinging back and forth along the tapping direction during the tapping process; the positioning structure is a positioning plate or a positioning rod; the width adjustment structure is provided on the end support assembly, and the width adjustment structure is a threaded bolt assembly, which is symmetrically provided at both ends of the end support assembly, and is used to fix the width direction of the workpiece to be processed to prevent it from swinging left and right in the vertical tapping direction during the tapping process; The number of the tapping assemblies is the same as the number of tapped holes on the workpiece to be processed; the tapping assembly includes a frame base, a guide groove is provided at the bottom of the frame base, and a corresponding guide strip is provided on the bottom plate of the bracket, so that the tapping assembly can be accurately positioned at the part to be tapped of the workpiece to be processed; the tapping assembly also includes a motor, a tap and a cylinder, the motor is mounted on a motor fixing plate, a movable plate is provided below the motor fixing plate, and the movable plate is movably connected to the frame base through a guide rail slider structure; The tap is fixedly mounted on the front end of the motor; the cylinder is arranged at a position close to the rear end of the motor and is fixedly mounted on the upper surface of the frame base through a cylinder fixing plate.

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