Horizontal slot broaching machine for large workpieces

Abstract

The utility model discloses a large -scale work piece is with horizontal type slotting broaching machine belongs to broaching machine technical field, and its technical scheme main points are: including base, be provided with the clamp for clamping work piece on base, the broach seat of slidingly being provided with on base, be connected with the tool on the broach seat, the fixed base of slidingly being provided with on base, be connected with the tool bar on fixed base, the support inclined block of slidingly being provided with on tool bar, and the tool head of support inclined block is used for supporting tool, and tool, tool bar and support inclined block all extend into work piece, be provided with the drive piece no.

Description

Technical Field

[0001] This utility model belongs to the field of broaching technology, and specifically relates to a horizontal grooving broaching machine for large workpieces. Background Technology

[0002] Chinese Patent No. CN102528527B discloses a continuous broaching structure for a broaching machine, including a linear reciprocating slide and a broach for broaching a workpiece. The slide is provided with a fixed seat, and the side of the fixed seat facing away from the slide is provided with an inclined guide rail. The extension direction of the inclined guide rail is at an angle to the movement direction of the slide. The machine also includes a movable slider that is adapted to the inclined guide rail and can slide along it, and a feed device for controlling the movable slider. The broach is fixed to the end of the movable slider.

[0003] The above technical solution has the following drawbacks: When machining keyways on large workpieces, the continuous broaching structure of this broaching machine requires placing the entire broaching structure inside the workpiece's through hole, adjusting the broach position, and completing one broaching operation through the reciprocating motion of the slide. Once the slide returns to its initial position, the feed device controls the moving slider to move a certain distance along the inclined guide rail, automatically feeding the broach in the broaching direction. Then, the next broaching operation is completed again under the drive of the slide, repeating this process to continuously machine keyways on large workpieces. This broaching structure... The machining method is vertical, so large workpieces must be in an upright position. However, due to the large mass and high center of gravity of the workpieces, the weight of the workpiece and the pulling force generated during machining are huge burdens when the workpiece is in an upright position. This can easily lead to fixture deformation or displacement, which not only seriously affects the machining accuracy but also brings the safety risk of workpiece tipping over. In addition, flipping the huge and heavy workpiece from a horizontal position to a vertical position and accurately positioning it is a complicated and cumbersome operation that relies heavily on large lifting equipment and places more stringent requirements on the spatial layout of the machining site. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a horizontal grooving broaching machine for large workpieces. The technical problem to be solved by this utility model is: how to make the processing of large workpieces safer and more stable.

[0005] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: A horizontal grooving broaching machine for large workpieces includes a base, a fixture for clamping the workpiece is provided on the base, a broach seat is slidably provided on the base, a cutting tool is connected to the broach seat, a fixed seat is slidably provided on the base, a tool shank is connected to the fixed seat, a supporting inclined block is slidably provided on the tool shank, the supporting inclined block is used to support the cutting head of the cutting tool, the cutting tool, the tool shank, and the supporting inclined block all extend into the workpiece, a first driving member is provided on the base for driving the broach seat to slide horizontally, and a second driving member is provided on the broach seat for driving the supporting inclined block to slide horizontally, when the second driving member drives the supporting inclined block to slide, the supporting inclined block can support the cutting head of the cutting tool to move upward in the vertical direction.

[0006] In the above-mentioned horizontal grooving broaching machine for large workpieces, the broach holder is rotatably equipped with upper and lower rods, one end of the upper and lower rods is equipped with a power component, the cutting tool is connected to the other end of the upper and lower rods, and the output end of the power component extends out and can abut against the upper surface of the broach holder, thereby causing the upper and lower rods to rotate and drive the cutting head of the cutting tool to move downward in the vertical direction.

[0007] In the above-mentioned horizontal grooving and broaching machine for large workpieces, a lock head is provided at one end of the upper and lower rods near the cutting tool, a connecting rod is installed at the end of the cutting tool, a locking groove is provided on the connecting rod, and the end of the lock head has a locking part adapted to the locking groove. The locking part can be inserted into or disengaged from the locking groove. A locking nut is threadedly connected to the lock head, and a pressure cap is detachably connected to the upper and lower rods. The pressure cap is used to press the locking nut onto the upper and lower rods.

[0008] In the above-mentioned horizontal grooving broaching machine for large workpieces, the broach holder and the fixed seat can be in a relatively fixed state or a separated state. When the broach holder and the fixed seat are in a relatively fixed state, the first driving member drives the broach holder to slide, and the broach holder drives the cutting tool, the second driving member, the support wedge, the fixed seat and the tool bar to slide. When the broach holder and the fixed seat are in a separated state, the first driving member drives the broach holder to slide, and the broach holder drives the cutting tool to slide.

[0009] In the above-mentioned horizontal grooving broaching machine for large workpieces, a baffle is provided on the base, the fixed seat and the baffle can be locked by a locking component, a positioning pin is provided on the fixed seat, and a positioning sleeve is provided on the broach holder. When the positioning pin is inserted into the positioning sleeve, the broach holder and the fixed seat are in a fixed state. When the positioning pin is disengaged from the positioning sleeve, the broach holder and the fixed seat are in a separated state.

[0010] In the aforementioned horizontal grooving and broaching machine for large workpieces, the locking assembly includes a driving component, a locking tongue, a locking pin, and a locking seat. The driving component and the locking seat are both disposed on the baffle. The locking pin is disposed on the fixed seat. When the fixed seat slides, the locking pin can extend into or disengage from the locking seat. The locking tongue is slidably disposed within the locking seat. The output end of the driving component is connected to the locking tongue. The driving component is used to drive the locking tongue to slide through or disengage from the locking pin, so that the locking pin and the locking seat are in a relatively fixed state or a relatively movable state.

[0011] In the above-mentioned horizontal grooving and broaching machine for large workpieces, a positioning plate is provided on the fixed base, one end of the workpiece abuts against the positioning plate, the positioning plate has a positioning part, the workpiece is sleeved on the outside of the positioning part, and the positioning part is adapted to the inner cavity of the workpiece.

[0012] In the above-mentioned horizontal grooving broaching machine for large workpieces, the fixture includes a positioning block, a chuck, and a support chuck. The positioning block is detachably disposed on the outside of the tool holder and abuts against the end of the workpiece. The chuck and the support chuck are slidably disposed on the base. The chuck is used to clamp the workpiece, and the support chuck is used to support and clamp the workpiece.

[0013] In the above-mentioned horizontal grooving broaching machine for large workpieces, the driving component includes a rotary drive source, a lead screw, a nut, a slide rail, and a slider. The output end of the rotary drive source is connected to the lead screw. The nut is fitted on the outside of the lead screw and the two are threaded together. The nut is connected to the broach holder. The slider is slidably mounted on the slide rail and connected to the broach holder.

[0014] In the above-mentioned horizontal grooving broaching machine for large workpieces, the second driving component includes a second rotary drive source, a second lead screw, a second nut, a second slide rail, and a second slider. The output end of the second rotary drive source is connected to the second lead screw. The second nut is sleeved on the outside of the second lead screw and the two are threaded together. A slide plate is slidably arranged on the broaching tool holder. The slide plate is connected to the support inclined block through a feed rod. The second nut is connected to the slide plate. The second slider is slidably arranged on the second slide rail and connected to the slide plate.

[0015] In summary, the beneficial effects of this utility model compared to the prior art are as follows: During machining, the first drive component drives the baffle to slide horizontally, which in turn drives the cutting tool to machine the workpiece. The second drive component drives the support wedge to slide horizontally, which in turn supports the cutting tool head to move vertically upward, thereby adjusting the cutting tool's machining position to meet the machining requirements of different parts of the workpiece. Since both the cutting tool and the support wedge slide horizontally, the workpiece is clamped and placed in a horizontal position. Therefore, loading and clamping large workpieces is more convenient and faster, which also helps to improve the positioning accuracy of large workpieces, ensures the machining accuracy of large workpieces, and makes the machining of large workpieces safer and more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial structural schematic diagram of an embodiment; Figure 3 This is a schematic diagram of another part of the structure of the embodiment; Figure 4 for Figure 3 Enlarged view of part A; Figure 5 for Figure 3 Enlarged view of part B; Figure 6 for Figure 3 Enlarged view of part D; Figure 7 This is a schematic diagram of the connection structure between the upper and lower rods and the connecting rod in an embodiment; Figure 8 This is a schematic diagram of the structure of the mounting base in the embodiment; Figure 9 This is a schematic diagram of the fixing base from another angle in the embodiment; Figure 10 This is a schematic diagram of the structure of the driver component in the embodiment. Figure 11 This is a schematic diagram of the structure of the second driving component in the embodiment.

[0017] Reference numerals in the attached diagram: 1. Base; 2. Broach holder; 3. Cutting tool; 4. Fixture; 5. Tool holder; 6. Supporting wedge block; 7. Clamp; 71. Positioning block; 72. Chuck; 73. Supporting chuck; 8. Drive component one; 81. Rotary drive source one; 82. Lead screw one; 83. Nut one; 84. Slide rail one; 85. Slider one; 9. Drive component two; 91. Rotary drive source two; 92. Lead screw two; 93. Nut two; 94. Slide rail two; 95. Slider 2; 96. Slide plate; 10. Upper and lower rods; 11. Power unit; 12. Lock head; 13. Locking part; 14. Connecting rod; 15. Lock groove; 16. Pressure cover; 17. Baffle; 18. Locking assembly; 181. Drive unit; 182. Lock tongue; 183. Locking pin; 184. Lock seat; 19. Positioning plate; 20. Positioning part; 21. Feed rod; 22. Workpiece; 23. Locking nut; 24. Positioning pin; 25. Positioning sleeve. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] A horizontal grooving and broaching machine for large workpieces, such as Figures 1 to 11 As shown, the device includes a base 1, on which a clamp 7 for holding a workpiece 22 is provided. A broach 2 is slidably provided on the base 1, and a cutting tool 3 is connected to the broach 2. A fixed seat 4 is slidably provided on the base 1. The fixed seat 4 slides by cooperating with a slider that slides on the slide rail provided on the base 1. A tool shank 5 is connected to the fixed seat 4. A support wedge 6 is slidably provided on the tool shank 5. The support wedge 6 is used to support the cutting head of the cutting tool 3. The cutting tool 3, the tool shank 5, and the support wedge 6 all extend into the workpiece 22.

[0020] In this embodiment, the fixture 7 includes a positioning block 71, a chuck 72, and a support chuck 73. The positioning block 71 is detachably disposed on the outside of the tool holder 5. Preferably, the positioning block 71 is sleeved on the outside of the tool holder 5. The positioning block 71 and the tool holder 5 are connected by bolts to ensure the stability of the positioning block 71 during the machining process. The positioning block 71 abuts against the end of the workpiece 22. The positioning block 71 limits the position of the workpiece 22, thereby ensuring that the workpiece 22 maintains a stable position during the machining process.

[0021] Both the chuck 72 and the support chuck 73 are slidably mounted on the base 1. The chuck 72 is used to clamp the workpiece 22, and the support chuck 73 is used to support and clamp the workpiece 22, thereby ensuring the stability of the workpiece 22 during the processing.

[0022] In this embodiment, both the chuck 72 and the support chuck 73 slide on the base 1 through a slide rail and a slider that slides on the slide rail. That is, the positions of the chuck 72 and the support chuck 73 can be adjusted to effectively clamp and support the workpiece 22. The number of support chucks 73 can be increased or decreased appropriately according to the specifications of the workpiece 22.

[0023] A positioning plate 19 is provided on the fixed base 4. One end of the workpiece 22 abuts against the positioning plate 19. The positioning plate 19 has a positioning part 20. The workpiece 22 is sleeved on the outside of the positioning part 20, and the positioning part 20 is adapted to the inner cavity of the workpiece 22. The workpiece 22 is restricted by the positioning part 20 and abuts against the end of the workpiece 22, thereby ensuring the stability of the position of the workpiece 22.

[0024] It should be noted that during loading, the workpiece 22 is first placed on the support chuck 73, which holds and supports the workpiece 22. Then, one end of the workpiece 22 is fitted onto the outside of the positioning part 20, and the end of the workpiece 22 abuts against the positioning plate 19. Next, the positioning block 71 is fitted onto the outside of the tool holder 5, and the positioning block 71 abuts against the other end of the workpiece 22. The positioning block 71 is then connected to the tool holder 5 with bolts. Finally, the chuck 72 is moved to clamp the end of the workpiece 22, thereby ensuring the positioning accuracy of the workpiece 22, improving the stability of the workpiece 22 during the processing, and thus ensuring the processing accuracy of the workpiece 22.

[0025] The base 1 is provided with a driving component 8 for driving the broach holder 2 to slide horizontally. Preferably, the driving component 8 includes a rotary driving source 81, a lead screw 82, a nut 83, a slide rail 84, and a slider 85. The rotary driving source 81 is preferably a motor, but other driving sources with rotation functions can also be used. The output end of the rotary driving source 81 is connected to the lead screw 82. The nut 83 is sleeved on the outside of the lead screw 82 and the two are threaded together. The nut 83 is connected to the broach holder 2. The slide rail 84 is set on the base 1. The slider 85 is slidably set on the slide rail 84 and connected to the broach holder 2. As another option, the driving component 8 can also be a gear and rack linear module.

[0026] Specifically, the rotary drive source 81 drives the lead screw 82 to rotate, causing the nut 83 to move along the length of the lead screw 82 and drive the broach holder 2 and the slider 85 to move along the slide rail 84. The broach holder 2 drives the tool 3 to move in the horizontal direction to process the workpiece 22.

[0027] The upper and lower rods 10 are rotatably mounted on the broach holder 2. The middle part of the upper and lower rods 10 is rotatably mounted on the broach holder 2 via a rotating shaft. The cutting tool 3 is connected to the other end of the upper and lower rods 10. Therefore, the cutting tool 3 and the upper and lower rods 10 can rotate around the rotating shaft.

[0028] The cutter holder 2 is provided with a second driving component 9 for driving the support inclined block 6 to slide horizontally. Preferably, the second driving component 9 includes a second rotary drive source 91, a second lead screw 92, a second nut 93, a second slide rail 94, and a second slider 95. The second rotary drive source 91 is preferably a motor, but other drive sources with rotary functions can also be used. The output end of the second rotary drive source 91 is connected to the second lead screw 92. The second nut 93 is sleeved on the outside of the second lead screw 92 and the two are threaded together. A slide plate 96 is slidably provided on the cutter holder 2. The slide plate 96 is connected to the support inclined block 6 through a feed rod 21. The second nut 93 is connected to the slide plate 96. The second slide rail 94 is provided on the cutter holder 2. The second slider 95 is slidably provided on the second slide rail 94 and connected to the slide plate 96. As another option, the second driving component 9 can also be a gear and rack linear module.

[0029] When the driving component 29 drives the support inclined block 6 to slide, the support inclined block 6 can support the cutting head of the tool 3 to move upward in the vertical direction. Specifically, by rotating the driving source 291 to drive the lead screw 292 to rotate, the nut 293 moves along the length direction of the lead screw 292 and drives the slide plate 96 and the slider 295 to move along the slide rail 294. The slide plate 96 drives the support inclined block 6 to slide on the tool bar 5 through the feed rod 21. The inclined surface of the support inclined block 6 supports the cutting head of the tool 3, so that the tool 3 and the upper and lower rods 10 rotate, thereby realizing that the cutting head at the end of the tool 3 moves upward in the vertical direction.

[0030] It should be noted that although the support of the inclined block 6 enables the tool 3 and the upper and lower rods 10 to rotate, thereby allowing the cutting head of the tool 3 to move upward in the vertical direction, the tool 3 and the upper and lower rods 10 cannot rotate on their own to reset the cutting head of the tool 3 after the support of the inclined block 6 is lost. Therefore, in this embodiment, a power component 11 is provided at the end of the upper and lower rods 10 away from the tool 3. The power component 11 is preferably a cylinder. As another option, the power component 11 can also be an electric cylinder. The output end of the power component 11 extends out and can abut against the upper surface of the drawbar 2. Through the abutment of the two, the force is transmitted to the upper and lower rods 10 through the power component 11, thereby causing the upper and lower rods 10 to rotate and drive the tool 3 to rotate, so that the cutting head of the tool 3 moves downward in the vertical direction, completing the reset of the cutting head.

[0031] A lock head 12 is provided at one end of the upper and lower rods 10 near the cutter 3. A connecting rod 14 is installed at the end of the cutter 3. A locking groove 15 is provided on the connecting rod 14. The end of the lock head 12 has a locking part 13 that is adapted to the locking groove 15. The locking part 13 can be inserted into or disengaged from the locking groove 15. When the locking part 13 is inserted into the locking groove 15, the upper and lower rods 10 and the connecting rod 14 are kept relatively fixed. When the locking part 13 is disengaged from the locking groove 15, the upper and lower rods 10 can be separated from the connecting rod 14. A locking nut 23 is threadedly connected to the lock head 12. A pressure cap 16 is detachably connected to the upper and lower rods 10. Preferably, the pressure cap 16 is connected to the upper and lower rods 10 by bolts. The pressure cap 16 is used to press the locking nut 23 onto the upper and lower rods 10. By restricting the locking nut 23 by the pressure cap 16, the stability of the lock head 12 is ensured.

[0032] It should be noted that when replacing the tool 3, first remove the pressure cap 16 to release the restriction on the locking nut 23, and then move the lock head 12 so that its locking part 13 disengages from the lock groove 15. At this time, the connecting rod 14 and the tool 3 can be removed directly. The operation is simple and the disassembly is convenient. When installing, the locking part 13 of the lock head 12 is reinserted into the lock groove 15, and then the pressure cap 16 is pressed on the locking nut 23 to complete the connection between the pressure cap 16 and the upper and lower rods 10. At this time, the upper and lower rods 10 and the connecting rod 14 are restricted by the lock head 12 and thus remain relatively fixed. The operation is simple and the installation is convenient.

[0033] The broach holder 2 and the fixed seat 4 can be in a relatively fixed state or a separated state. When the broach holder 2 and the fixed seat 4 are in a relatively fixed state, the first driving component 8 drives the broach holder 2 to slide, and the broach holder 2 drives the tool 3, the second driving component 9, the support wedge block 6, the fixed seat 4 and the tool bar 5 to slide. When the broach holder 2 and the fixed seat 4 are in a separated state, the driving component drives the broach holder 2 to slide, and the broach holder 2 drives the tool 3 to slide.

[0034] It should be noted that before loading workpiece 22, the broach holder 2 and the fixed seat 4 are first placed in a relatively fixed state. The first driving component 8 drives the broach holder 2 to slide, and the broach holder 2 drives the tool 3, the second driving component 9, the support wedge block 6, the fixed seat 4 and the tool holder 5 to slide, so that the tool 3, the support wedge block 6 and the tool holder 5 are away from the loading position of workpiece 22 to avoid interference when loading workpiece 22. This saves the space reserved for loading avoidance and reduces space occupation. After loading is completed, the first driving component 8 drives the broach holder 2 to slide back to reset, and the broach holder 2 drives the tool 3, the second driving component 9, the support wedge block 6, the fixed seat 4 and the tool holder 5 to slide back to reset, so that the tool 3, the support wedge block 6 and the tool holder 5 extend into workpiece 22. Then, before processing workpiece 22, the broach holder 2 and the fixed seat 4 are separated to ensure that the first driving component 8 drives the broach holder 2 to slide, which only moves the tool 3 and the support wedge block 6.

[0035] In the prior art, the workpiece 22 is usually inserted along the axial direction of the cutter 3 and the tool holder 5. Therefore, space needs to be reserved on the outside to avoid the workpiece 22 during loading. In this embodiment, the broaching block 2 is driven to slide by the first drive component 8. The broaching block 2 drives the cutter 3, the second drive component 9, the support wedge 6, the fixed seat 4 and the tool holder 5 to slide, so that the cutter 3, the support wedge 6 and the tool holder 5 move away from the loading position of the workpiece 22 to avoid the workpiece 22. Compared with the prior art, this embodiment does not need to reserve space for loading avoidance, which effectively reduces space occupation and optimizes the space layout.

[0036] The fixed base 4 is provided with a positioning pin 24, and the puller base 2 is provided with a positioning sleeve 25. When the positioning pin 24 is inserted into the positioning sleeve 25, the puller base 2 and the fixed base 4 are in a fixed state. When the positioning pin 24 is disengaged from the positioning sleeve 25, the puller base 2 and the fixed base 4 are in a separated state. It should be noted that in this embodiment, the positioning sleeve 25 is the positioning sleeve 25 of the flexible positioner in the prior art, and the positioning pin 24 is the positioning pin 24 of the flexible positioner in the prior art. The specific structure of the positioning pin 24 and the positioning sleeve 25 and their working principle are prior art, and will not be described in detail here.

[0037] A baffle 17 is provided on the base 1. The fixed seat 4 and the baffle 17 can be locked by the locking component 18. It should be noted that when it is necessary to disengage the positioning pin 24 from the positioning sleeve 25 to separate the cutter holder 2 from the fixed seat 4, the fixed seat 4 and the baffle 17 on the base 1 are first locked by the locking component 18. At this time, the fixed seat 4 and the baffle 17 on the base 1 remain relatively fixed. Therefore, when the drive component 8 drives the cutter holder 2 to slide, the positioning pin 24 can disengage from the positioning sleeve 25.

[0038] Preferably, the locking assembly 18 includes a drive component 181, a latch 182, a locking pin 183, and a lock seat 184. The drive component 181 and the lock seat 184 are both mounted on the baffle 17. The locking pin 183 is mounted on the fixed seat 4. When the fixed seat 4 slides, the locking pin 183 can extend into or disengage from the lock seat 184. The latch 182 is slidably mounted inside the lock seat 184. The drive component 181 is preferably a cylinder. Alternatively, the drive component 181 can be an electric cylinder. The output end of the drive component 181 is connected to the latch 182. The drive component 181 is used to drive the latch 182 to slide through or disengage from the locking pin 183, so that the locking pin 183 and the lock seat 184 are in a relatively fixed state or a relatively movable state.

[0039] It should be noted that when the baffle 17 on the fixed seat 4 and the base 1 is in the locked state, the locking pin 183 on the fixed seat 4 extends into the lock seat 184. The driving component 181 drives the locking tongue 182 to slide through the locking pin 183. Through the restriction of the locking pin 183 by the lock seat 184 and the locking tongue 182, the locking pin 183 and the lock seat 184 are in a relatively fixed state. Conversely, when the baffle 17 on the fixed seat 4 and the base 1 is in the unlocked state, the locking tongue 182 is driven by the driving component 181 to disengage from the locking pin 183. The locking pin 183 loses the restriction of the locking tongue 182. At this time, the locking pin 183 and the lock seat 184 are in a relatively movable state. That is, as the fixed seat 4 moves, the locking pin 183 can disengage from the lock seat 184.

[0040] The working principle of this utility model is as follows: Before the workpiece 22 is loaded, the broaching holder 2 is driven to slide close to the fixed seat 4 by the first drive component 8 until the positioning pin 24 is inserted into the positioning sleeve 25, so that the broaching holder 2 and the fixed seat 4 are in a relatively fixed state. Then the first drive component 8 drives the broaching holder 2 to slide, and the broaching holder 2 drives the tool 3, the second drive component 9, the support wedge block 6, the fixed seat 4 and the tool bar 5 to slide, so that the tool 3, the support wedge block 6 and the tool bar 5 move away from the loading position of the workpiece 22 to avoid the workpiece 22. Next, the workpiece 22 is placed on the support chuck 73, and the support chuck 73 clamps and supports the workpiece 22. Then, one end of the workpiece 22 is sleeved on the outside of the positioning part 20 and the end of the workpiece 22 abuts against the positioning plate 19. Then, the positioning block 71 is sleeved on the outside of the tool holder 5 and the positioning block 71 abuts against the other end of the workpiece 22. Then, the positioning block 71 is connected to the tool holder 5 by bolts. Finally, the chuck 72 is moved to clamp the end of the workpiece 22. The subsequent drive component 8 drives the baffle 2 to slide and reset. The baffle 2 drives the tool 3, drive component 9, support wedge block 6, fixed seat 4 and tool bar 5 to slide and reset, so that the tool 3, support wedge block 6 and tool bar 5 all extend into the workpiece 22, and the locking pin 183 extends into the locking seat 184. Then, the driving component 181 drives the locking tongue 182 to pass through the locking pin shaft 183, so that the locking pin shaft 183 and the locking seat 184 are in a relatively fixed state, thereby locking the fixed seat 4 and the baffle 17 on the base 1. Then, the driving component 18 drives the pull knife seat 2 to slide away from the fixed seat 4, and the positioning pin 24 disengages from the positioning sleeve 25, so that the pull knife seat 2 and the fixed seat 4 are in a separated state. Then, the broach holder 2 is driven by the drive component to move the tool 3 to process the workpiece 22. During the processing, the support block 6 is driven to slide by the drive component 29, so that the inclined surface of the support block 6 supports the tool head of the tool 3 to move upward in the vertical direction, and the processing position of the tool 3 is adjusted. During the machining process, the output end of the power unit 11 can extend and abut against the upper surface of the broach holder 2, causing the upper and lower rods 10 to rotate and drive the tool 3 to rotate, so that the tool head at the end of the tool 3 moves downward in the vertical direction to complete the reset of the tool head.

[0041] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A horizontal grooving and broaching machine for large workpieces, comprising a base (1), characterized in that: The base (1) is provided with a clamp (7) for clamping the workpiece (22). A broach seat (2) is slidably disposed on the base (1). A cutting tool (3) is connected to the broach seat (2). A fixed seat (4) is slidably disposed on the base (1). A tool shank (5) is connected to the fixed seat (4). A support wedge (6) is slidably disposed on the tool shank (5). The support wedge (6) is used to support the cutting head of the cutting tool (3). The cutting tool (3) and the tool shank (7) are connected to the fixed seat (4). 5) Both the support wedge (6) and the support wedge (6) extend into the workpiece (22). The base (1) is provided with a drive member one (8) for driving the broach seat (2) to slide in the horizontal direction. The broach seat (2) is provided with a drive member two (9) for driving the support wedge (6) to slide in the horizontal direction. When the drive member two (9) drives the support wedge (6) to slide, the support wedge (6) can support the cutting head of the tool (3) to move upward in the vertical direction.

2. The horizontal grooving and broaching machine for large workpieces according to claim 1, characterized in that: The broach holder (2) is rotatably provided with upper and lower rods (10). One end of the upper and lower rods (10) is provided with a power component (11). The cutting tool (3) is connected to the other end of the upper and lower rods (10). The output end of the power component (11) extends out and abuts against the upper surface of the broach holder (2), thereby causing the upper and lower rods (10) to rotate and drive the cutting head of the cutting tool (3) to move downward in the vertical direction.

3. A horizontal grooving and broaching machine for large workpieces according to claim 2, characterized in that: A lock head (12) is provided at one end of the upper and lower rods (10) near the cutter (3). A connecting rod (14) is installed at the end of the cutter (3). A lock groove (15) is provided on the connecting rod (14). The end of the lock head (12) has a locking part (13) that is adapted to the lock groove (15). The locking part (13) can be inserted into or disengaged from the lock groove (15). A locking nut (23) is threaded onto the lock head (12). A pressure cap (16) is detachably connected to the upper and lower rods (10). The pressure cap (16) is used to press the locking nut (23) onto the upper and lower rods (10).

4. A horizontal grooving and broaching machine for large workpieces according to any one of claims 1, 2, or 3, characterized in that: The broach holder (2) and the fixed seat (4) can be in a relatively fixed state or a separated state. When the broach holder (2) and the fixed seat (4) are in a relatively fixed state, the first driving member (8) drives the broach holder (2) to slide, and the broach holder (2) drives the cutting tool (3), the second driving member (9), the support wedge (6), the fixed seat (4) and the tool bar (5) to slide. When the broach holder (2) and the fixed seat (4) are in a separated state, the first driving member (8) drives the broach holder (2) to slide, and the broach holder (2) drives the cutting tool (3) to slide.

5. A horizontal grooving and broaching machine for large workpieces according to claim 4, characterized in that: The base (1) is provided with a baffle (17), and the fixed seat (4) and the baffle (17) can be locked by a locking component (18). The fixed seat (4) is provided with a positioning pin (24), and the puller seat (2) is provided with a positioning sleeve (25). When the positioning pin (24) is inserted into the positioning sleeve (25), the puller seat (2) and the fixed seat (4) are in a fixed state. When the positioning pin (24) is disengaged from the positioning sleeve (25), the puller seat (2) and the fixed seat (4) are in a separated state.

6. A horizontal grooving and broaching machine for large workpieces according to claim 5, characterized in that: The locking assembly (18) includes a driving component (181), a latch (182), a locking pin (183), and a lock seat (184). The driving component (181) and the lock seat (184) are both disposed on the baffle (17). The locking pin (183) is disposed on the fixed seat (4). When the fixed seat (4) slides, the locking pin (183) can extend into or disengage from the lock seat (184). The latch (182) is slidably disposed within the lock seat (184). The output end of the driving component (181) is connected to the latch (182). The driving component (181) is used to drive the latch (182) to slide through or disengage from the locking pin (183), so that the locking pin (183) and the lock seat (184) are in a relatively fixed state or a relatively movable state.

7. A horizontal grooving and broaching machine for large workpieces according to any one of claims 1, 2, or 3, characterized in that: The fixed base (4) is provided with a positioning plate (19), one end of the workpiece (22) abuts against the positioning plate (19), the positioning plate (19) has a positioning part (20), the workpiece (22) is sleeved on the outside of the positioning part (20), and the positioning part (20) is adapted to the inner cavity of the workpiece (22).

8. A horizontal grooving and broaching machine for large workpieces according to any one of claims 1, 2, or 3, characterized in that: The fixture (7) includes a positioning block (71), a chuck (72), and a support chuck (73). The positioning block (71) is detachably disposed on the outside of the tool holder (5). The positioning block (71) abuts against the end of the workpiece (22). The chuck (72) and the support chuck (73) are both slidably disposed on the base (1). The chuck (72) is used to clamp the workpiece (22), and the support chuck (73) is used to support and clamp the workpiece (22).

9. A horizontal grooving and broaching machine for large workpieces according to any one of claims 1, 2, or 3, characterized in that: The drive unit 1 (8) includes a rotary drive source 1 (81), a lead screw 1 (82), a nut 1 (83), a slide rail 1 (84), and a slider 1 (85). The output end of the rotary drive source 1 (81) is connected to the lead screw 1 (82). The nut 1 (83) is sleeved on the outside of the lead screw 1 (82) and the two are threaded together. The nut 1 (83) is connected to the broach holder (2). The slider 1 (85) is slidably disposed on the slide rail 1 (84) and connected to the broach holder (2).

10. A horizontal grooving and broaching machine for large workpieces according to any one of claims 2 or 3, characterized in that: The second driving component (9) includes a second rotary driving source (91), a second lead screw (92), a second nut (93), a second slide rail (94), and a second slider (95). The output end of the second rotary driving source (91) is connected to the second lead screw (92). The second nut (93) is sleeved on the outside of the second lead screw (92) and the two are threaded together. A slide plate (96) is slidably arranged on the drawbar holder (2). The slide plate (96) is connected to the support inclined block (6) through a feed rod (21). The second nut (93) is connected to the slide plate (96). The second slider (95) is slidably arranged on the second slide rail (94) and connected to the slide plate (96).

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