A broaching machine for machining machine tool chucks

Abstract

The present invention discloses a broaching machine for machining machine tool chucks, which relates to the field of broaching machines. It solves the problem that when the existing broaching machine for machining machine tool chucks is in use, it is difficult to fully remove the debris adhered inside the broaching teeth only by suction, which affects the machining accuracy. The broaching machine includes a machine body, a conveying mechanism, a broaching mechanism and a dust removal mechanism. Two dust suction boxes are fixedly connected to the machine body. The broaching mechanism includes a sliding plate, a mounting plate, a broaching rod and broaching teeth. The dust removal mechanism includes cleaning teeth. In the present invention, the chuck is conveyed by the conveying mechanism, and the sliding plate is driven to reciprocate by the broaching mechanism, so that the broaching teeth on both sides of the mounting plate perform broaching operations on the surface of the chuck. During the movement of the mounting plate, the cleaning teeth in the broaching teeth in the non-working state are driven to slide by the dust removal mechanism, and the residual debris in the broaching teeth is scraped off and then collected by the dust suction box. The device has a stable structure and improves the cleaning efficiency and machining efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of broaching machines, and specifically relates to a broaching machine for machining machine tool chucks. Background Technique

[0002] A broaching machine is a machine tool that uses a broach as a tool to machine through holes, planes, and formed surfaces of workpieces. Broaching can obtain high dimensional accuracy and small surface roughness, and has high productivity, being suitable for mass production. A chuck is an important part on a machine tool, a mechanical device used to clamp workpieces on the machine tool. It is a machine tool accessory that clamps and positions workpieces by the radial movement of movable chucks evenly distributed on the chuck body. The machining accuracy of the chuck directly affects the machining accuracy of the parts machined by the machine tool. In order to improve the clamping friction force on the workpiece, multiple groups of tooth grooves are generally opened on the surface of the chuck, and these tooth grooves can be quickly machined and completed by a broaching machine.

[0003] When the existing broaching machine for machining machine tool chucks is in use, multiple groups of broaching teeth with gradually increasing sizes are set. Through the gradual frictional broaching of these broaching teeth, the tooth groove positions of the chuck are machined into shape. A large amount of broached metal debris will be stored between the positions of these broaching teeth. Some debris will adhere to the surface of the broaching teeth, affecting the cleaning by the dust removal equipment. If the debris cannot be cleaned cleanly, it will cause the flatness of the surface of the broaching teeth to decrease, affecting the accuracy of subsequent broaching operations and reducing the product quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a broaching machine for machining machine tool chucks that is convenient for improving the cleaning efficiency of debris adhered inside the broaching teeth, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A broaching machine for machining machine tool chucks, including a machine body, a conveying mechanism, a broaching mechanism, and a dust removal mechanism. Two dust suction boxes are fixedly connected to the machine body. The conveying mechanism is installed on the machine body and is used to convey the chuck. The broaching mechanism includes a sliding plate slidably connected to the top surface of the machine body in the horizontal direction. Two mounting plates are slidably connected to the sliding plate. Multiple broaching rods are provided on both mounting plates. Multiple broaching teeth are fixedly connected to the broaching rods and are used to drive the sliding plate to reciprocate, so that the broaching teeth on both mounting plates perform broaching operations on the surface of the chuck. The dust removal mechanism includes multiple cleaning teeth installed on the upper side of the mounting plate and is used to drive the cleaning teeth inside the broaching teeth in the non-working state to slide during the movement of the mounting plate, scrape off the residual debris inside the broaching teeth, and then collect it through the dust suction box, which is convenient for improving the cleaning efficiency of debris adhered inside the broaching teeth.

[0006] Preferably, the broaching mechanism further includes a fixed block fixedly installed on the sliding plate. Two groups of the mounting plates are symmetrically distributed on both sides of the fixed block. A plurality of mounting grooves are evenly formed in the mounting plates. The broaching rod is inserted into the mounting grooves. Screws that are rotationally connected to the ends of the broaching rod and threadedly connected to the mounting plates are provided. The sizes of the plurality of broaching teeth decrease towards the side close to the fixed block. An adjusting member for adjusting the distance between the two mounting plates on both sides to adapt to the processing of chucks with different widths is provided on the fixed block, facilitating the reciprocating sliding of the sliding plate to enable the broaching teeth on the two mounting plates to perform broaching operations on the surface of the chuck.

[0007] Preferably, the dust removal mechanism further includes baffles fixedly installed on both sides of the mounting plate. First chutes are formed between adjacent broaching teeth on the broaching rod. A plurality of second chutes communicating with the first chutes are evenly formed on the upper side of the mounting plate. A sliding rod is slidably connected in the first chute and the second chute in the horizontal direction. The bottom of the cleaning tooth is fixedly connected to the sliding rod. The side surface of the cleaning tooth can slidably fit with the broaching teeth on both sides. A control member for synchronously controlling the sliding states of the sliding rods on both sides when the sliding plate moves is provided on the machine body, facilitating the sliding of the cleaning teeth in the broaching teeth in the non-working state during the movement of the mounting plate to scrape off the residual debris in the broaching teeth, and then collecting it through the dust suction box.

[0008] Preferably, the control member includes a connecting plate installed on the upper side of the machine body. One end of a plurality of the sliding rods penetrates through one of the baffles and is fixedly connected to the connecting plate. A fixing plate is fixedly connected to the bottom of the connecting plate. A guiding block is fixedly connected to the bottom of the fixing plate. A horizontal groove and an inclined groove capable of slidably connecting with the outer wall of the guiding block are formed on the machine body. One end of the horizontal groove is communicated with one end of the inclined groove. A shielding member for shielding the upper openings of the horizontal groove and the inclined groove during the sliding process of the guiding block is provided on the machine body, facilitating the synchronous control of the sliding states of the sliding rods on both sides when the sliding plate moves.

[0009] Preferably, the adjusting member includes a rotating rod rotatably connected to the fixed block. The rotating rod penetrates through the two mounting plates. Two threaded grooves respectively threadedly connected to the two mounting plates are formed on the rotating rod. The thread directions of the two threaded grooves are opposite. A plurality of support plates are respectively fixedly connected to both sides of the two mounting plates. The support plates on both sides of the two mounting plates slide horizontally and staggeredly. The bottom surface of the support plate slidably fits with the top surface of the fixed block, facilitating the adjustment of the distance between the two mounting plates on both sides to adapt to the processing of chucks with different widths.

[0010] Preferably, the conveying mechanism includes two groups of driving rollers installed on the machine body for rotating operation, and the outer walls of the two groups of driving rollers are connected with two groups of transmission belts. Multiple groups of fixing clamps for clamping and conveying the claws are fixedly connected to the transmission belts on both sides, so as to facilitate the conveying of the claws.

[0011] Preferably, two groups of spring shafts are provided on the cleaning teeth, and the outer walls of the two groups of spring shafts are fixedly connected with cleaning brushes rotatably connected to the cleaning teeth, so as to swing into an open state during movement to clean the side walls of the broaching teeth on both sides.

[0012] Preferably, the shielding member includes a shielding block fixedly mounted on the side of the mounting plate, the shielding block is provided with a guide groove slidably connected to the outer wall of the guide block, the bottom surface of the fixed plate is slidably fitted with the top surface of the guide groove, the fixed plate passes through the mounting plate and is slidably connected to the mounting plate in a horizontal direction, so as to facilitate shielding of the upper openings of the horizontal groove and the inclined groove during the sliding of the guide block to prevent dust from falling into the horizontal groove and the inclined groove.

[0013] Preferably, an electric telescopic rod is fixedly connected to the machine body, and the telescopic end of the electric telescopic rod is fixedly connected to a connecting block fixedly connected to the bottom surface of the sliding plate. A sliding groove is provided on the machine body and is slidably connected to the outer wall of the connecting block in a horizontal direction, so as to drive the sliding plate to slide and realize the broaching function.

[0014] Preferably, the two groups of dust boxes are symmetrically distributed on both sides of the transmission belt, and the sides of the dust boxes on both sides are respectively fixedly connected with support blocks for sliding against the sides of the transmission belt, so as to keep the two sides of the clamping claws stably contacted by the support blocks during the drawing process, thereby preventing the transmission belt from being affected by excessive thrust from the sides and affecting its stability.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A broaching machine for machining machine tool chucks provided by the present invention solves the problem that when the existing broaching machine for machining machine tool chucks is in use, it is difficult to fully remove the debris adhered inside the broaching teeth only by suction, which affects the machining accuracy. The chuck is conveyed by a conveying mechanism, and a sliding plate is driven to reciprocate by a broaching mechanism, so that the broaching teeth on both mounting plates perform broaching operations on the surface of the chuck. During the movement of the mounting plate, a cleaning tooth inside the broaching tooth in the non-working state is driven to slide by a dust removal mechanism, and the debris remaining inside the broaching tooth is scraped off and then collected by a dust suction box. The device has a stable structure. By setting two groups of symmetric broaching rods for alternating broaching, on the one hand, the machining efficiency is improved, on the other hand, the broaching teeth in the non-working state can be automatically cleaned and dust removed without affecting the continuous operation of the equipment, the service life of the equipment is extended, and at the same time, the machining accuracy is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of a partial structure of the conveying mechanism of the present invention;

[0019] Figure 3 is Figure 2 an enlarged view of area A in

[0020] Figure 4 is a schematic diagram of a partial structure of the control part of the present invention;

[0021] Figure 5 is Figure 4 an enlarged view of area B in

[0022] Figure 6 is a schematic diagram of a partial structure of the broaching mechanism of the present invention;

[0023] Figure 7 is an exploded view of a partial structure of the dust removal mechanism of the present invention;

[0024] Figure 8 is Figure 7 an enlarged view of area C in

[0025] Figure 9 is an exploded view of a partial structure of the broaching mechanism of the present invention;

[0026] Figure 10 is Figure 9 an enlarged view of area D in

[0027] Figure 11 is a schematic diagram of a partial structure of the adjusting part of the present invention;

[0028] Figure 12 is Figure 11 an enlarged view of area E in

[0029] Figure 13 This is a schematic diagram of the partial structure of the dust removal mechanism of the present invention.

[0030] In the figure: 1 - machine body; 2 - dust suction box; 3 - conveying mechanism; 4 - broaching mechanism; 5 - sliding plate; 6 - mounting plate; 7 - broaching rod; 8 - broaching teeth; 9 - dust removal mechanism; 10 - cleaning teeth; 11 - fixing block; 12 - mounting groove; 13 - screw; 14 - adjusting part; 15 - baffle; 16 - first chute; 17 - second chute; 18 - sliding rod; 19 - control part; 20 - connecting plate; 21 - fixing plate; 22 - guiding block; 23 - horizontal groove; 24 - inclined groove; 25 - shielding part; 26 - rotating rod; 27 - threaded groove; 28 - support plate; 29 - driving roller; 30 - transmission belt; 31 - fixing clamp; 32 - hairspring rotating shaft; 33 - cleaning brush; 34 - shielding block; 35 - guiding groove; 36 - electric telescopic rod; 37 - connecting block; 38 - sliding groove; 39 - support block; 40 - jaw. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] Please refer to Figures 1 - 12 , a broaching machine for machining a machine tool jaw shown in the figure, including a machine body 1, a conveying mechanism 3, a broaching mechanism 4 and a dust removal mechanism 9. Two groups of dust suction boxes 2 are fixedly connected to the machine body 1. The conveying mechanism 3 is installed on the machine body 1 and is used for conveying the jaw 40. The broaching mechanism 4 includes a sliding plate 5 slidably connected to the top surface of the machine body 1 in the horizontal direction. Two groups of mounting plates 6 are slidably connected to the sliding plate 5. A plurality of broaching rods 7 are provided on both groups of mounting plates 6. A plurality of broaching teeth 8 are fixedly connected to the broaching rods 7 and are used for driving the sliding plate 5 to reciprocate, so that the broaching teeth 8 on both sides of the mounting plates 6 perform broaching operations on the surface of the jaw 40. The dust removal mechanism 9 includes a plurality of cleaning teeth 10 installed on the upper side of the mounting plate 6 and is used for driving the cleaning teeth 10 in the non-working broaching teeth 8 to slide during the movement of the mounting plate 6, scraping off the residual debris in the broaching teeth 8, and then collecting it through the dust suction box 2.

[0034] The broaching mechanism 4 also includes a fixed block 11 fixedly mounted on the sliding plate 5, two groups of mounting plates 6 are symmetrically distributed on both sides of the fixed block 11, a plurality of mounting grooves 12 are evenly arranged on the mounting plates 6, the broaching rod 7 is plugged into the mounting grooves 12, both ends of the broaching rod 7 are rotatably connected with screws 13 threadedly connected to the mounting plates 6, the sizes of the plurality of groups of broaching teeth 8 decrease toward the side close to the fixed block 11, and the fixed block 11 is provided with an adjusting member 14 for adjusting the spacing between the mounting plates 6 on both sides to adapt to processing with jaws 40 of different widths.

[0035] The adjusting member 14 includes a rotating rod 26 rotatably connected to the fixed block 11, the rotating rod 26 passes through the mounting plates 6 on both sides, and is provided with two groups of thread grooves 27 respectively threadedly connected to the mounting plates 6 on both sides, and the thread directions of the two groups of thread grooves 27 are opposite, and multiple groups of support plates 28 are respectively fixedly connected to the mounting plates 6 on both sides, and the support plates 28 on the mounting plates 6 on both sides slide alternately with each other in the horizontal direction, and the bottom surface of the support plate 28 slides in contact with the top surface of the fixed block 11.

[0036] The conveying mechanism 3 includes two groups of driving rollers 29 installed on the body 1 for rotating operation, the outer walls of the two groups of driving rollers 29 are connected to two groups of transmission belts 30 for transmission, and multiple groups of fixed clamps 31 for clamping and conveying the claws 40 are fixedly connected to the transmission belts 30 on both sides, an electric telescopic rod 36 is fixedly connected to the body 1, and the telescopic end of the electric telescopic rod 36 is fixedly connected to a connecting block 37 fixedly connected to the bottom surface of the sliding plate 5, and a sliding groove 38 is provided on the body 1 for slidingly connecting to the outer wall of the connecting block 37 in a horizontal direction, and two groups of dust collection boxes 2 are symmetrically distributed on both sides of the transmission belt 30, and the sides of the dust collection boxes 2 on both sides are respectively fixedly connected with support blocks 39 for sliding against the sides of the transmission belt 30.

[0037] In this embodiment, the transmission belt 30 is driven by the driving roller 29 to transmit the claws 40 to be processed, which are clamped and conveyed to the position between the mounting plates 6 on both sides by the fixing clamp 31 for subsequent drawing operation. After the drawing is completed, the claws 40 to be processed are conveyed for a distance by the transmission belt 30 to be output, and the next group of claws 40 to be processed are conveyed to the designated position for drawing. This reciprocating process can achieve the purpose of automated conveying and drawing operation. The transmission belt 30 can output the processed claws 40 by releasing the fixed state of the fixing clamp 31 at the turning position.

[0038] According to the width dimension of the jaw 40, rotate the rotating rod 26 so that the threaded grooves 27 on both sides drive the mounting plate 6 to slide and adjust on the upper side of the sliding plate 5. The two mounting plates 6 drive the support plate 28 to adjust staggeredly, without affecting the support for the bottom surface of the jaw 40. The mounting plate 6 drives the baffles 15 on both sides to adjust and slide, so that the distance between the baffles 15 on the two mounting plates 6 is exactly the width of the jaw 40. Install the broaching rod 7 of the required size into the mounting groove 12 and fix it with the screw 13. Starting the electric telescopic rod 36 can drive the connecting block 37 to slide in the sliding groove 38, thereby driving the sliding plate 5 to slide along the surface of the machine body 1. The two mounting plates 6 drive the broaching teeth 8 to slide reciprocally. The size of the broaching teeth 8 gradually increases towards both ends, realizing the broaching function of the tooth groove of the jaw 40.

[0039] It should be noted that: through the design of the two groups of mounting plates 6, the broaching rods 7 on both sides can broach the bottom surface of the jaw 40 during the reciprocating sliding process, making the broached tooth grooves more symmetrical and avoiding the situation of unilateral offset lines in traditional one-way broaching. At the same time, by adjusting the positions of the two baffles 15, during the broaching process, the jaw 40 is stably clamped between the baffle 15 and the fixed clamp 31. The transmission belts 30 on both sides of the jaw 40 are resisted by the support blocks 39 during the broaching process, avoiding the situation of offset during the broaching process. After the broaching is completed, control the electric telescopic rod 36 to reset to the specified position, so that the gap between the jaw 40 and the two baffles 15 corresponds again, and the processed jaw 40 can be output through the transmission belt 30.

[0040] During the movement of the mounting plate 6, the dust removal mechanism 9 drives the cleaning teeth 10 in the non-working broaching teeth 8 to slide, scraping off the debris remaining in the broaching teeth 8, and then collecting it through the dust suction box 2. The device has a stable structure. By setting two groups of symmetrical broaching rods 7 for alternating broaching, on the one hand, the processing efficiency is improved, on the other hand, the non-working broaching teeth 8 can be automatically cleaned and dusted, without affecting the continuous operation of the equipment, extending the service life of the equipment, and at the same time making the processing accuracy more stable.

[0041] Embodiment 2

[0042] Please refer to Figures 2 - 10, this embodiment further illustrates the first embodiment, the dust removal mechanism 9 shown in the figure also includes a baffle 15 fixedly mounted on both sides of the mounting plate 6, a first slide groove 16 is provided between adjacent broaching teeth 8 on the broaching rod 7, a plurality of second slide grooves 17 connected to the first slide groove 16 are evenly provided on the upper side of the mounting plate 6, a sliding rod 18 is slidably connected in the first slide groove 16 and the second slide groove 17 in the horizontal direction, the bottom of the cleaning tooth 10 is fixedly connected to the sliding rod 18, the side surface of the cleaning tooth 10 can slide and fit with the broaching teeth 8 on both sides, and a control member 19 is provided on the machine body 1 for controlling the sliding state of the sliding rods 18 on both sides in linkage when the sliding plate 5 moves.

[0043] The control member 19 includes a connecting plate 20 installed on the upper side of the body 1, one end of the multiple sets of sliding rods 18 passes through a side baffle 15 and is fixedly connected to the connecting plate 20, a fixing plate 21 is fixedly connected to the bottom of the connecting plate 20, and a guide block 22 is fixedly connected to the bottom of the fixing plate 21. A horizontal groove 23 and an oblique groove 24 that can be slidably connected to the outer wall of the guide block 22 are provided on the body 1, one end of the horizontal groove 23 is connected to one end of the oblique groove 24, and a shielding member 25 is provided on the body 1 for shielding the upper openings of the horizontal groove 23 and the oblique groove 24 during the sliding process of the guide block 22.

[0044] The shielding member 25 includes a shielding block 34 fixedly mounted on the side of the mounting plate 6, and a guide groove 35 is provided on the shielding block 34 and is slidably connected to the outer wall of the guide block 22. The bottom surface of the fixed plate 21 slides in contact with the top surface of the guide groove 35, and the fixed plate 21 passes through the mounting plate 6 and is slidably connected to the mounting plate 6 in a horizontal direction.

[0045] In this embodiment, during the broaching process, the mounting plate 6 drives the sliding rod 18 to slide horizontally with the connecting plate 20, and the guide block 22 slides in the horizontal groove 23 and the inclined groove 24. When the mounting plate 6 moves toward the bottom of the claw 40 for broaching, the guide block 22 slides in the horizontal groove 23, and the sliding rod 18 pushes the cleaning tooth 10 to insert into the baffle 15 on one side to prevent the cleaning tooth 10 from contacting the bottom surface of the claw 40 during the broaching operation. At this time, the mounting plate 6 on the other side is in a state away from the claw 40. In this state, the guide block 22 gradually slides from the horizontal groove 23 to the inclined groove 24, and the guide block 22 also slides in the guide groove 35 at the same time, so that the fixed plate 21 and the connecting plate 20 drive the sliding rod 18 to slide out to the side, and the sliding rod 18 pulls the cleaning tooth 10 to slide in the first slide groove 16 and the second slide groove 17. The side walls of the cleaning tooth 10 slide and rub against the surfaces of the broaching teeth 8 on both sides, so that the debris adhered to the surface of the broaching teeth 8 can be fully removed, and the removed debris can be sucked out through the dust box 2 above.

[0046] Through the arrangement of the shielding block 34 and the fixing plate 21, during the sliding process of the mounting plate 6, the shielding block 34 will be driven to slide together, and during the sliding process, the top surfaces of the horizontal groove 23 and the inclined groove 24 can always be shielded to prevent debris from falling into the horizontal groove 23 and the inclined groove 24 and affecting the sliding of the guiding block 22. Similarly, by arranging the fixing plate 21 to shield the top surface of the guiding groove 35, debris can be prevented from falling in.

[0047] It should be noted that when installing the broaching rod 7, control the electric telescopic rod 36 to pull one side of the mounting plate 6 to one end position, and the guiding block 22 slides to one end of the inclined groove 24, so that the sliding rod 18 can slide out of the first sliding groove 16 and the second sliding groove 17, and then the broaching rod 7 can be inserted into the mounting groove 12 for fixing. Similarly, the broaching rod 7 on the other side mounting plate 6 can be installed.

[0048] By arranging two groups of symmetric broaching rods 7 for alternating broaching, on the one hand, the processing efficiency is improved, on the other hand, the broaching teeth 8 in the non-working state can be automatically cleaned and dusted, without affecting the continuous operation of the equipment, extending the service life of the equipment, and at the same time making the processing accuracy more stable.

[0049] Embodiment III

[0050] Please refer to Figures 7 - 13 , this embodiment further describes Embodiment I. Two sets of spring shafts 32 are provided on the cleaning teeth 10 in the figure, and cleaning brushes 33 fixedly connected to the outer walls of the two sets of spring shafts 32 are rotationally connected to the cleaning teeth 10.

[0051] In this implementation scheme, when the guiding block 22 is in the horizontal groove 23, the sliding rod 18 drives the cleaning teeth 10 to insert into the baffle 15 on the other side, and the baffle 15 pushes the cleaning brushes 33 on both sides to flip and fold. At this time, the spring shafts 32 are in a compressed state. When the sliding rod 18 drives the cleaning teeth 10 to slide and clean, the cleaning teeth 10 slide out from inside the baffle 15. Driven by the spring, the cleaning brushes 33 on both sides rotate to a horizontal state and unfold to the same straight line, so that the outer walls of the broaching teeth 8 on both sides can be cleaned during the movement along with the cleaning teeth 10. After being resisted by the broaching teeth 8, it will push the cleaning brushes 33 to rotate around the spring shafts 32, and there will be no jamming situation, and a good cleaning efficiency can still be maintained.

[0052] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A broaching machine for machining machine tool chucks, characterized in that, include: A machine body (1), wherein two sets of dust collection boxes (2) are fixedly connected to the machine body (1); Also includes: A conveying mechanism (3), the conveying mechanism (3) being mounted on the machine body (1) and being used for conveying the claws; A broaching mechanism (4), the broaching mechanism (4) comprising a sliding plate (5) slidably connected to the top surface of the machine body (1) in a horizontal direction, two groups of mounting plates (6) being slidably connected to the sliding plate (5), a plurality of broaching rods (7) being provided on both groups of mounting plates (6), a plurality of broaching teeth (8) being fixedly connected to the broaching rods (7) for driving the sliding plate (5) to slide back and forth so that the broaching teeth (8) on the mounting plates (6) on both sides perform a broaching operation on the surface of the clamping claw; A dust removal mechanism (9), the dust removal mechanism (9) comprising a plurality of cleaning teeth (10) mounted on the upper side of the mounting plate (6), used to drive the cleaning teeth (10) in the non-working broaching teeth (8) to slide during the movement of the mounting plate (6), to scrape off the debris remaining in the broaching teeth (8), and then collect the debris through the dust collection box (2), the dust removal mechanism (9) also comprising baffles (15) fixedly mounted on both sides of the mounting plate (6), and a first slide groove (15) is provided between adjacent broaching teeth (8) on the broaching rod (7). 6), a plurality of second slide grooves (17) connected to the first slide grooves (16) are evenly arranged on the upper side of the mounting plate (6), a sliding rod (18) is slidably connected in the first slide groove (16) and the second slide groove (17) in the horizontal direction, the bottom of the cleaning tooth (10) is fixedly connected to the sliding rod (18), and the side surface of the cleaning tooth (10) can be slidably fitted with the broaching teeth (8) on both sides, and a control member (19) is provided on the machine body (1) for controlling the sliding state of the sliding rods (18) on both sides in linkage when the sliding plate (5) moves.

2. The broaching machine for machining machine tool chucks according to claim 1, characterized in that: The broaching mechanism (4) also includes a fixed block (11) fixedly mounted on the sliding plate (5), two groups of mounting plates (6) are symmetrically distributed on both sides of the fixed block (11), a plurality of mounting grooves (12) are evenly arranged on the mounting plates (6), the broaching rod (7) is plugged into the mounting grooves (12), both ends of the broaching rod (7) are rotatably connected with screws (13) threadedly connected to the mounting plates (6), the sizes of the plurality of groups of broaching teeth (8) decrease toward the side close to the fixed block (11), and the fixed block (11) is provided with an adjusting member (14) for adjusting the spacing between the mounting plates (6) on both sides to adapt to processing with jaws of different widths.

3. The broaching machine for machining machine tool chucks according to claim 2, characterized in that: The control member (19) comprises a connecting plate (20) mounted on the upper side of the machine body (1); one end of the plurality of sliding rods (18) passes through one side of the baffle plate (15) and is fixedly connected to the connecting plate (20); a fixing plate (21) is fixedly connected to the bottom of the connecting plate (20); a guide block (22) is fixedly connected to the bottom of the fixing plate (21); a horizontal groove (23) and an inclined groove (24) capable of being slidably connected to the outer wall of the guide block (22) are provided on the machine body (1); one end of the horizontal groove (23) is connected to one end of the inclined groove (24); and a shielding member (25) is provided on the machine body (1) for shielding the upper openings of the horizontal groove (23) and the inclined groove (24) during the sliding process of the guide block (22).

4. A broaching machine for machining machine tool chucks according to claim 2, characterized in that: The adjusting member (14) comprises a rotating rod (26) rotatably connected to the fixing block (11), the rotating rod (26) passing through the mounting plates (6) on both sides, the rotating rod (26) being provided with two groups of thread grooves (27) respectively threadedly connected to the mounting plates (6) on both sides, the thread directions of the two groups of thread grooves (27) being opposite, a plurality of groups of support plates (28) being respectively fixedly connected to the mounting plates (6) on both sides, the support plates (28) on the mounting plates (6) on both sides slidingly interlaced with each other in a horizontal direction, the bottom surface of the support plate (28) slidingly fitting with the top surface of the fixing block (11).

5. A broaching machine for machining machine tool chucks according to claim 1, characterized in that: The conveying mechanism (3) comprises two groups of driving rollers (29) mounted on the machine body (1) for rotating operation, the outer walls of the two groups of driving rollers (29) are connected to two groups of transmission belts (30) for transmission, and the transmission belts (30) on both sides are fixedly connected to multiple groups of fixed clamps (31) for clamping and conveying the claws.

6. The broaching machine for machining a machine tool jaw according to claim 1, wherein: Two groups of spring rotating shafts (32) are provided on the cleaning teeth (10), and the outer walls of the two groups of spring rotating shafts (32) are fixedly connected with cleaning brushes (33) rotatably connected to the cleaning teeth (10).

7. A broaching machine for machining machine tool chucks according to claim 3, characterized in that: The shielding member (25) comprises a shielding block (34) fixedly mounted on the side of the mounting plate (6); the shielding block (34) is provided with a guide groove (35) slidably connected to the outer wall of the guide block (22); the bottom surface of the fixed plate (21) is slidably fitted with the top surface of the guide groove (35); the fixed plate (21) passes through the mounting plate (6) and is slidably connected to the mounting plate (6) in a horizontal direction.

8. A broaching machine for machining machine tool chucks according to claim 1, characterized in that: The machine body (1) is fixedly connected to an electric telescopic rod (36), the telescopic end of the electric telescopic rod (36) is fixedly connected to a connecting block (37) fixedly connected to the bottom surface of the sliding plate (5), and the machine body (1) is provided with a sliding groove (38) connected to the outer wall of the connecting block (37) in a horizontal sliding direction.

9. A broaching machine for machining machine tool chucks according to claim 5, characterized in that: The two groups of dust collection boxes (2) are symmetrically distributed on both sides of the transmission belt (30), and the sides of the dust collection boxes (2) on both sides are respectively fixedly connected with support blocks (39) for resisting and sliding against the sides of the transmission belt (30).

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