Tool clamping mechanism of a tool magazine

Abstract

This utility model discloses a tool clamping mechanism for a tool magazine, relating to the field of machine tools. It includes a connecting arm with a fixed shaft, on which a tool disc is rotatably mounted. Several tool clamps arranged around the outer edge of the tool disc clamp the tools via two elastically opening and closing clamping arms. The ends of the two clamping arms have clamping wheels that match the tool clamping grooves. The tool disc can be driven to rotate by a motor located at the front end of the fixed shaft to switch between designated tool clamps and the spindle to achieve tool transfer. Compared with existing technologies, this design features clamping wheels at the ends of the elastically arranged clamping arms, which, through engagement with the tool clamping grooves, allow the tools to be easily detached from or reloaded into the tool magazine.

Description

Technical Field

[0001] This utility model relates to a tool clamping mechanism, and more particularly to a tool clamping mechanism for a tool magazine, belonging to the field of machine tool technology. Background Technology

[0002] The tool magazine of a drilling and tapping machine stores various types of cutting tools, which are held by tool holders on the magazine. Based on the vertical movement of the spindle, a specific tool can detach from the magazine to engage with the spindle, or return to the magazine to disengage from the spindle. The tool holders play a crucial role in ensuring stable tool transfer between the spindle and the magazine. Therefore, the applicant has designed a tool holding mechanism for a tool magazine and hereby submits the following application. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a tool clamping mechanism for a tool magazine.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a tool clamping mechanism for a tool magazine, including a connecting arm with a fixed shaft, a tool disc rotatably sleeved on the fixed shaft, and several tool clamps arranged around the outer edge of the tool disc clamping the tools through two clamping arms that can elastically open and close. The ends of the two clamping arms have clamping wheels that match the tool clamping grooves. The tool disc can be driven to rotate by a motor provided at the front end of the fixed shaft to switch the specified tool clamps to cooperate with the spindle to realize the transfer of tools.

[0005] Preferably, the outer edge of the cutter head has a plurality of protrusions at equal intervals, the clamping rod for mounting the clamping arm of the cutter clamp is located at the limiting groove formed by adjacent protrusions, and at least one fastener is inserted into the clamping rod to fix the clamping rod on the cutter head.

[0006] Preferably, the motor for driving the cutter head to rotate is mounted on a connecting seat at the end of a fixed shaft, and the chip baffle plate on the rear side of the connecting seat is rotatably connected to the sleeve on the central boss of the cutter head.

[0007] Preferably, it further includes a blade cover that covers the top of the clamping rods, and the blade cover has a plurality of fastening holes corresponding to the clamping rods formed along its inner edge. Fasteners can be inserted into the fastening holes to the clamping rods so that the blade cover and the clamping rods are fixed to each other.

[0008] Preferably, the boss of the cutter head extends upward to form a cutter head shaft, and a rotor that can be driven by the motor is mounted on several ribs on the side of the cutter head shaft and is locked and fixed to the cutter head by the ribs.

[0009] Preferably, the connecting seat is also equipped with a worm gear, and the motor is connected to the worm gear through a synchronous pulley and a synchronous belt. The worm gear can drive the rotor and the cutter head to rotate through a plurality of rollers on the rotor.

[0010] Preferably, it also includes a timing belt cover fixed to the side of the connecting seat, the timing belt cover having a clearance groove to avoid the rotor rollers.

[0011] Preferably, an outer cover is fixed to the outside of the connecting seat, and the motor is located in the cavity formed by the outer cover and the chip baffle.

[0012] Preferably, the connecting arm also has a hinge block.

[0013] This utility model has at least the following advantages:

[0014] 1. The two clamping arms of the tool holder are elastically configured with clamping wheels at their ends. By engaging with the tool clamping grooves, the tool can be easily disengaged from or loaded back into the tool magazine.

[0015] 2. By fitting the sleeve and the chip baffle together, the front motor and worm gear are supported, which can reduce the pressure on the front end of the fixed shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 A diagram showing the product after the outer cover has been removed.

[0018] Figure 3 This is a schematic diagram of the drive mechanism of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0020] Figure 5 yes Figure 4 Enlarged diagram of point A in the middle.

[0021] Figure 6 This is a diagram showing the installation of the tool holder.

[0022] Figure 7 This is a diagram showing the installation of the blade cover.

[0023] Figure 8 This is a schematic diagram of the cutter head.

[0024] Figure 9 This is a schematic diagram of the tool holder.

[0025] Figure 10 This is a schematic diagram of the synchronous belt cover.

[0026] In the diagram, 1-connecting arm; 101-back plate; 102-hinge block; 103-fixed shaft; 113-bearing; 2-cutter head; 201-protrusion; 202-bore; 203-cutter head shaft; 213-rib; 3-cutter clamp; 301-clamping rod; 302-clamping arm; 303-spring; 304-clamping wheel; 305-cutting tool; 4-cutter cover; 401-fastening hole; 5-rotor; 501-roller; 6-connecting seat; 601-motor; 602-worm gear; 603-synchronous pulley; 604-synchronous belt; 605-synchronous belt cover; 615-clearance groove; 7-sleeve; 8-chip baffle; 9-outer cover. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-10 As shown: A tool clamping mechanism for a tool magazine includes a connecting arm 1 with a back plate 101. The connecting arm 1 is hinged to a stand (not shown in the figure) via a hinge block 102. A fixed shaft 103 mounted on the connecting arm 1 is rotatably fitted with a tool disc 2 that holds tools 305 via a plurality of tool clips 3 through a bearing 113. Each tool clip 3 is locked and fixed together with a tool cover 4. When the workpiece is being processed, the tool disc 2 can be driven to rotate by a motor 601 and a worm gear 602, thereby switching the appropriate tool 305 with the spindle (the rest of the drilling machine, not shown in the figure) to realize the workpiece processing action.

[0029] Furthermore, such as Figures 6-9 As shown, the outer edge of the cutter head 2 is provided with several protrusions 201 at equal intervals, and adjacent protrusions 201 together form a limiting groove. The cutter clamp 3 has a clamping rod 301 with a bent design. The end of the clamping rod 301 is limited and installed in the limiting groove, and is fixed to the cutter head 2 by several fasteners. The cutter cover 4, which is placed above the cutter clamp 3, has several fastening holes 401 on its inner edge that correspond to the cutter clamp 3. Fasteners can pass through the fastening holes 401 and connect to the cutter clamp 3 so that the cutter cover 4 and the cutter clamp 3 are fixed to each other.

[0030] Specifically, the fasteners used to fix the blade holder 3 to the blade disc 2 and the fasteners used to fix the blade cover 4 can be the same or different fasteners, but are preferably different fasteners to avoid affecting the disassembly and assembly of each other.

[0031] Specifically, the aforementioned bent clamping rod 301 has two clamping arms 302 hinged to its other end. The two clamping arms 302 are elastically opened and closed by springs 303, and each of their clamping ends is equipped with a clamping wheel 304. When the tool magazine swings due to the upward movement of the spindle, the clamping wheel 304 can cooperate with the clamping groove of the designated tool 305 to realize the opening and closing action of the two clamping arms, and the designated tool 305 can be transferred between the spindle and the tool magazine.

[0032] Furthermore, a boss 202 is formed at the center of the cutter head 2, and a number of ribs 213 are formed on the side of the cutter head shaft 203 extending upward from the boss 202. A rotor 5 with a number of rollers 501 on its outer edge is mounted on the ribs 213 and locked by fasteners. A connecting seat 6 that is close to an elongated shape is locked at the end of the fixed shaft 103 of the connecting arm 1. The motor 601 and the worm gear 602 are respectively installed at both ends of the connecting seat 6 and are driven by the synchronous pulley 603 and the synchronous belt 604. When the worm gear 602 rotates, it can cooperate with the rollers 501 of the rotor 5 to drive the cutter head 2 and the cutter 305 to rotate.

[0033] Specifically, since the connecting seat 6 used to install the aforementioned motor 601 and worm gear 602 is locked at the front end of the fixed shaft 103, the front end of the fixed shaft 103 is under a large load, and the entire drive unit is prone to falling. Therefore, a sleeve 7 is also fixedly fitted at the boss 202 at the center of the cutter head 2. The sleeve 7 is fitted with a chip baffle 8 locked at the rear side of the connecting seat 6 to prevent machining debris from splashing onto the cutter head. If this is done, without affecting the rotation of the tool magazine, the sleeve 7 can provide auxiliary support to the drive part at the front end of the fixed shaft 103 with the help of the chip baffle 8, sharing some of the pressure, thereby reducing the aforementioned risk of falling.

[0034] Specifically, a timing belt cover 605 is provided on the outside of the timing pulley 603 and the timing belt 604. The timing belt cover 605 is fixed to the side of the connecting seat 6, and an avoidance groove 615 is provided on the side of the cover close to the rotor 5 to avoid interference with the rotor 5.

[0035] Specifically, an outer cover 9 is also fixed to the front side of the aforementioned connecting seat 6. The outer cover 9 and the chip baffle 8 together form a chamber to protect the motor 601 and the worm gear 602, so as to reduce the erosion caused by dust and debris, thereby extending the service life of the equipment.

[0036] Furthermore, the fixed installation between the above components can be achieved using various types of screws as fasteners.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A tool holding mechanism of a tool magazine, characterized by: The device includes a connecting arm (1) with a fixed shaft (103), on which a cutter disc (2) is rotatably mounted. Several cutter clips (3) arranged around the outer edge of the cutter disc (2) hold the cutter (305) through two elastically opening and closing clip arms (302). The ends of the two clip arms (302) have clip wheels (304) that match the clip grooves of the cutter (305). The cutter disc (2) can be driven to rotate by a motor (601) at the front end of the fixed shaft to switch the designated cutter clips to cooperate with the spindle to realize the transfer of the cutter (305).

2. A tool holding mechanism of a tool magazine according to claim 1, characterized in that The cutter head (2) has a plurality of protrusions (201) evenly spaced on its outer edge. The clamping rod (301) of the cutter clamp (3) for mounting the clamping arm (302) is located at the limiting groove formed by the adjacent protrusions (201), and at least one fastener is inserted into the clamping rod (301) so that the clamping rod (301) is fixed on the cutter head (2).

3. A tool holding mechanism of a tool magazine according to claim 2, characterized in that: The motor (601) for driving the cutter head (2) to rotate is mounted on the connecting seat (6) at the end of the fixed shaft (103). The chip baffle (8) provided on the rear side of the connecting seat (6) is rotatably connected to the sleeve (7) provided at the central boss (202) of the cutter head (2).

4. A tool holding mechanism of a tool magazine according to claim 2, characterized in that: It also includes a blade cover (4) covering the top of several clamping rods (301), and several fastening holes (401) corresponding to the clamping rods (301) are formed along the inner edge of the blade cover (4). Fasteners can be inserted into the fastening holes (401) to the clamping rods (301) so that the blade cover (4) and the clamping rods (301) are fixed to each other.

5. A tool holder mechanism for a tool magazine according to claim 3, characterized in that: The boss (202) of the cutter head (2) extends upward to the cutter head shaft (203). A rotor (5) that can be driven by the motor (601) is mounted on several ribs (213) on the side of the cutter head shaft (203) and is locked and fixed to the cutter head (2) by the ribs (213).

6. A tool holder mechanism for a tool magazine according to claim 5, characterized in that: The connecting seat (6) is also equipped with a worm gear (602). The motor (601) and the worm gear (602) are connected by a synchronous pulley (603) and a synchronous belt (604). The worm gear (602) can drive the rotor (5) and the cutter head (2) to rotate through a plurality of rollers (501) on the rotor (5).

7. A tool holding mechanism for a tool magazine according to claim 6, characterized in that: It also includes a timing belt cover (605) fixed to the side of the connecting seat (6), the timing belt cover (605) having a clearance groove (615) for avoiding the rotor (5) rollers (501).

8. A tool holding mechanism of a tool magazine according to claim 3, characterized in that: An outer cover (9) is also fixed to the outside of the connecting seat (6), and the motor (601) is located in the cavity formed by the outer cover (9) and the chip baffle (8).

9. A tool holding mechanism of a tool magazine according to any one of claims 1-8, characterized in that: The connecting arm (1) also has a hinge block (102).

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