Quick-change tool with buffering function

Abstract

The utility model discloses a quick-change tool with a buffering function, and belongs to the technical field of machining equipment. The taper cutter comprises a taper cutter handle, a first connecting shaft and a second connecting shaft, a first connecting sleeve is installed on the first connecting shaft, a second connecting sleeve is installed on the second connecting shaft, ball installing grooves are further machined in the annular face of the second connecting sleeve in an array mode, balls are installed in the ball installing grooves, and a pressing sleeve is installed on the outer side of the second connecting sleeve. A replaceable lining is installed in the second connecting sleeve, and an arc groove is machined in the outer wall of the replaceable lining. A locking block installation groove is machined in the right side end of the second connecting shaft, a locking block is installed in the locking block installation groove, an adjusting screw rod is installed on the locking block, the adjusting screw rod penetrates through the second connecting shaft and the second connecting sleeve, an adjusting nut is installed at the end of the adjusting screw rod, and a locking base is arranged at the left end of the replaceable lining. By using the quick-change tool, the time of workers is saved, and the efficiency of installing the steel wire thread insert is greatly improved.

Description

Technical Field

[0001] The utility model relates to a quick-change tool and belongs to the technical field of mechanical processing equipment. Background Art

[0002] Due to the special nature of the material, the strength of aluminum parts is lower than that of steel parts. In order to protect the holes of aluminum parts and increase their strength, a hole is first processed in the base of the part, and then the screw sleeve is embedded in the base of the part to form an internal thread that meets international standards, so that the aluminum parts have high connection strength, earthquake resistance, impact resistance and wear resistance. For example: the material of the integrated transmission device of the tracked armored vehicle is aluminum, and the screw sleeve needs to be embedded in its base to connect with other transmission parts through the screw sleeve to improve the base connection strength, earthquake resistance, impact resistance and wear resistance.

[0003] At present, mechanical equipment is generally used to spin the screw sleeve into the part matrix. However, when mechanical equipment is used to install the screw sleeve, different sizes of screw sleeves need to be spun and embedded into the part matrix. Tools of different sizes are required to complete the embedding work. Therefore, it is necessary to constantly replace spinning tools of different sizes. The existing replacement method is to install the spinning tool on the chuck of the machine tool. However, this method requires constant clamping and disassembly of the spinning tool, and the function of rapid tool replacement cannot be achieved, resulting in low installation efficiency. In addition, the spinning tool is directly installed on the machine tool. When the screw sleeve is embedded in the part matrix and installed in place, it is easy to cause tool extrusion damage. Utility Model Content

[0004] The utility model is to improve the replacement efficiency of the spinning tool in the process of embedding the screw sleeve into the part matrix by mechanical spinning. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to determine the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0005] The technical solution of this utility model:

[0006] A quick-change tool with a buffer function, comprising a tapered tool handle, a first connecting shaft and a second connecting shaft, the axes of the tapered tool handle, the first connecting shaft and the second connecting shaft are on the same straight line, a first connecting sleeve is installed on the first connecting shaft, a second connecting sleeve is installed on the second connecting shaft, a ball mounting groove is processed in an array on the annular surface of the second connecting sleeve, a ball is installed in the ball mounting groove, a compression sleeve is installed on the outer side of the second connecting sleeve, a replaceable bushing is installed in the second connecting sleeve, and an arc groove is processed on the outer wall of the replaceable bushing;

[0007] A locking block installation groove is processed at the right end portion of the second connecting shaft, a locking block is installed in the locking block installation groove, an adjusting screw is installed on the locking block, the adjusting screw passes through the second connecting shaft and the second connecting sleeve and an adjusting nut is installed at its end, and a locking seat is provided at the left end of the replaceable bushing.

[0008] Preferably, the first connecting sleeve is installed on the first connecting shaft by means of a key connection.

[0009] Preferably, the first connecting sleeve and the second connecting sleeve are designed as end face grooves, and the two are connected via the grooves.

[0010] Preferably, the compression sleeve is installed on the second connecting sleeve by threaded connection, an elastic retaining ring is installed on the second connecting sleeve, the elastic retaining ring is arranged at the right end of the second connecting sleeve, and the right interior of the compression sleeve is designed to be tapered.

[0011] Preferably, a locking seat installation groove is processed on the locking block, a clamping portion is arranged in the locking seat installation groove, and a clamping groove is processed on the locking seat.

[0012] Preferably, the replaceable bushing has a tool installation groove, a tool positioning block is arranged in the tool installation groove, a buffer spring is installed on the bottom wall of the tool installation groove, and a buffer seat is installed on the buffer spring.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is a quick-change tool with a buffer function, which saves the time of the staff and the cost, and greatly improves the efficiency of installing the wire screw sleeve. The utility model quick-change tool with a buffer function has been applied to the installation process of the screw sleeve of a certain model of existing parts. The quick-change bushing is realized by designing the structure of the compression sleeve and the locking block, which has the advantages of simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a half-section schematic diagram of a quick-change tool with a buffer function;

[0016] Figure 2 It is a full cross-sectional view of a quick-change tool with a buffer function;

[0017] Figure 3 yes Figure 2 Middle AA section view;

[0018] Figure 4 is a schematic diagram of the installation of the locking block in the second connecting shaft;

[0019] Figure 5 is a cross-sectional view of a replaceable bushing;

[0020] Figure 6It is a structural schematic diagram of the screw sleeve mounting rod;

[0021] In the figure, 1-tapered tool handle, 2-first connecting shaft, 3-second connecting shaft, 4-first connecting sleeve, 5-second connecting sleeve, 6-ball mounting groove, 7-ball, 8-pressure sleeve, 9-replaceable bushing, 10-arc groove, 11-locking block mounting groove, 12-locking block, 13-adjusting screw, 14-adjusting nut, 15-locking seat, 16-elastic retaining ring, 17-locking seat mounting groove, 18-clamping part, 19-clamping groove, 20-tool mounting groove, 21-tool positioning block, 22-buffer spring, 23-buffer seat, 24-screw sleeve mounting rod, 25-screw sleeve to be installed, 26-positioning slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection, including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as threaded connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can always be found in the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example: choose welding connection for fixed connection and hinge connection for detachable connection.

[0024] Specific implementation method 1: Combination Figure 1-Figure 6 The present embodiment is described. A quick-change tool with a buffer function in the present embodiment comprises a tapered tool handle 1, a first connecting shaft 2 and a second connecting shaft 3. The axes of the tapered tool handle 1, the first connecting shaft 2 and the second connecting shaft 3 are on the same straight line. A first connecting sleeve 4 is installed on the first connecting shaft 2, and a second connecting sleeve 5 is installed on the second connecting shaft 3. A ball mounting groove 6 is also machined in an array on the annular surface of the second connecting sleeve 5. A ball 7 is installed in the ball mounting groove 6. A clamping sleeve 8 is installed on the outer side of the second connecting sleeve 5. A replaceable bushing 9 is installed in the second connecting sleeve 5, and an arc groove 10 is machined on the outer wall of the replaceable bushing 9.

[0025] The right end of the second connecting shaft 3 is processed with a locking block installation groove 11, and a locking block 12 is installed in the locking block installation groove 11. An adjusting screw 13 is installed on the locking block 12 in a threaded manner. The adjusting screw 13 passes through the second connecting shaft 3 and the second connecting sleeve 5 and an adjusting nut 14 is installed at its end. The left end of the replaceable bushing 9 has a locking seat 15;

[0026] Among them, the locking block 12 is processed with a locking seat mounting groove 17, a clamping portion 18 is arranged in the locking seat mounting groove 17, a clamping groove 19 is processed on the locking seat 15, the replaceable bushing 9 has a tool mounting groove 20, a tool positioning block 21 is arranged in the tool mounting groove 20, a buffer spring 22 is installed on the bottom wall of the tool mounting groove 20, and a buffer seat 23 is installed on the buffer spring 22. In this embodiment, a screw sleeve mounting rod 24 is required to realize the installation of the screw sleeve 25 to be installed on the aluminum part substrate, such as Figure 6 As shown, the left end of the screw sleeve mounting rod 24 is processed with a positioning slot 26 adapted to the positioning block 21;

[0027] A quick-change tool with a buffer function, the use principle of which is: first, install the screw sleeve mounting rod 24 into the tool mounting groove 20 of the replaceable bushing 9, so that the positioning groove 26 of the screw sleeve mounting rod 24 is inserted into the tool positioning block 21, and then, insert the replaceable bushing 9 into the second connecting sleeve 5, so that the locking seat 15 at the left end of the replaceable bushing 9 is inserted into the locking seat mounting groove 17 of the locking block 12, and the adjusting nut 14 is screwed, and the adjusting screw 13 drives the locking block 12 to slide in the locking block mounting groove 11, so that the clamping part 18 is clamped into the clamping groove 19 of the locking seat 15, and then, the compression sleeve 8 is screwed, and when the compression sleeve 8 is screwed into place, the ball mounting is squeezed. The movable space of the ball 7 in the groove 6 allows the ball 7 to protrude from the inner hole surface of the second connecting sleeve 5, and press against the arc groove 10 on the outer wall of the replaceable bushing 9, so as to realize the reliable fixation of the replaceable bushing 9. Finally, the tapered tool holder 1 is installed on the chuck of the machine tool, and the machine tool is started. The feed speed can be faster at the beginning. When the screw sleeve 25 to be installed is about to reach the surface of the part, the turning speed is slowed down, that is, the speed of discontinuous cutting is slowed down. After the screw sleeve 25 to be installed enters the surface of the part, the head of the machine tool is reversed, and the screw sleeve mounting rod 24 is unscrewed from the screw sleeve 25 to be installed, and finally the screw sleeve 25 to be installed at the end of the screw sleeve mounting rod 24 is rotated and embedded into the aluminum part substrate.

[0028] In this embodiment, the replaceable bushing 9 can be quickly installed on the quick-change tool through the "clamping sleeve 8" and the "locking block 12", which improves the quick-change efficiency of the replaceable bushing 9 and the screw sleeve mounting rod 24, and the axial rotation of the screw sleeve mounting rod 24 is limited by the positioning block 21, and the axial movement of the replaceable bushing 9 is limited by the locking block 12 to prevent the installation limit of the screw sleeve mounting rod 24 from being unreliable during the process of rotating and embedding the screw sleeve 25 to be installed into the aluminum part substrate, resulting in the screw sleeve mounting rod 24 being subjected to a large torsional force and eventually being twisted off. In addition, a buffer seat 23 is arranged inside the replaceable bushing 9. When the screw sleeve mounting rod 24 is about to complete the installation of the screw sleeve 25 to be installed on the aluminum part substrate, the buffer seat 23 provides a buffer to the screw sleeve mounting rod 24 to prevent hard contact between the screw sleeve mounting rod 24 and the replaceable bushing 9, which may cause damage to the replaceable bushing 9 or the screw sleeve mounting rod 24.

[0029] Specific implementation method 2: Combination Figure 1-Figure 6 The present embodiment is described as a quick-change tool with a buffer function, wherein the first connecting sleeve 4 is installed on the first connecting shaft 2 by a key connection.

[0030] Specific implementation method three: Combination Figure 1-Figure 6 This embodiment is described. In this embodiment, a quick-change tool with a buffer function is provided. The first connecting sleeve 4 and the second connecting sleeve 5 are designed as end face teeth and grooves, and the two are connected through the teeth and grooves. The first connecting sleeve 4 and the second connecting sleeve 5 are connected through the end face teeth and grooves, so that the first connecting sleeve 4 can rotate synchronously with the second connecting sleeve 5.

[0031] Specific implementation method four: Combination Figure 1-Figure 6 This embodiment is described as a quick-change tool with a buffer function. The compression sleeve 8 is installed on the second connecting sleeve 5 by a threaded connection. The second connecting sleeve 5 is installed with an elastic retaining ring 16. The elastic retaining ring 16 is arranged at the right end of the second connecting sleeve 5. The right interior of the compression sleeve 8 is designed to be tapered. In this way, the elastic retaining ring 16 can prevent the compression sleeve 8 from slipping out of the second connecting sleeve 5.

[0032] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined, and those skilled in the art can exhaust all possibilities based on the mathematical knowledge of arrangement and combination. Therefore, the present utility model will no longer describe the technical solutions after arrangement and combination one by one, but it should be understood that the technical solutions after arrangement and combination have been disclosed by the present utility model.

[0033] This implementation is only an exemplary description of this patent and does not limit its protection scope. Those skilled in the art may also make partial changes to it, as long as they do not exceed the spirit of this patent, they are all within the protection scope of this patent.

Claims

1. A quick-change tool with a buffer function, comprising a tapered tool handle (1), a first connecting shaft (2) and a second connecting shaft (3), wherein the axes of the tapered tool handle (1), the first connecting shaft (2) and the second connecting shaft (3) are on the same straight line, and characterized in that: A first connecting sleeve (4) is installed on the first connecting shaft (2), a second connecting sleeve (5) is installed on the second connecting shaft (3), a ball mounting groove (6) is machined in an array on the annular surface of the second connecting sleeve (5), balls (7) are installed in the ball mounting groove (6), a clamping sleeve (8) is installed on the outer side of the second connecting sleeve (5), a replaceable bushing (9) is installed in the second connecting sleeve (5), and a circular arc groove (10) is machined on the outer wall of the replaceable bushing (9); A locking block installation groove (11) is processed at the right end of the second connecting shaft (3), a locking block (12) is installed in the locking block installation groove (11), an adjusting screw (13) is installed on the locking block (12), the adjusting screw (13) passes through the second connecting shaft (3) and the second connecting sleeve (5) and an adjusting nut (14) is installed at the end thereof, and a locking seat (15) is provided at the left end of the replaceable bushing (9).

2. A quick-change tool with a buffer function according to claim 1, characterized in that: The first connecting sleeve (4) is mounted on the first connecting shaft (2) in a key connection manner.

3. A quick-change tool with a buffer function according to claim 1, characterized in that: The first connecting sleeve (4) and the second connecting sleeve (5) are designed as end face tooth grooves, and the two are connected via the tooth grooves.

4. A quick-change tool with a buffer function according to claim 1, characterized in that: The compression sleeve (8) is installed on the second connecting sleeve (5) by threaded connection. The second connecting sleeve (5) is installed with an elastic retaining ring (16), which is arranged at the right end of the second connecting sleeve (5).

5. The quick-change tool with buffer function according to claim 1, characterized in that: The locking block (12) is processed with a locking seat installation groove (17), a clamping portion (18) is arranged in the locking seat installation groove (17), and the locking seat (15) is processed with a clamping groove (19).

6. A quick-change tool with a buffer function according to claim 1 or 5, characterized in that: The replaceable bushing (9) has a tool installation groove (20), a tool positioning block (21) is arranged in the tool installation groove (20), a buffer spring (22) is installed on the bottom wall of the tool installation groove (20), and a buffer seat (23) is installed on the buffer spring (22).

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